facebook functionality #81

raincoats · 2014-03-18T05:17:16Z

allows users to login to linux with facebook

immibis · 2014-03-18T05:50:48Z

Does it actually work?

ghost · 2014-03-18T07:18:59Z

This looks amazing... :P

enedil · 2014-03-18T07:19:10Z

And why would anyone want to use it?

metemaddar · 2014-03-18T15:54:09Z

Would you mind put the link of reference?
The link on the first discussion message got 404.

Thanks

On Tue, Mar 18, 2014 at 10:50 AM, enedil notifications@github.com wrote:

And why would anyone want to use it?

Reply to this email directly or view it on GitHubhttps://github.com//pull/81#issuecomment-37905283
.

Mohammad Etemaddar
http://goog_1283906581
metemaddar.ir
Web Development Services

in* http://www.linkedin.com/pub/mohammad-etemaddar/9/832/462

jesus-ramos · 2014-03-18T17:44:45Z

Should have at least started by putting the check inside of a function.

Commit 8f898e9 removed the redundant reads of bInterfaceProtocol from the descriptors, but introduced a regression to devices with quirks of type QUIRK_AUDIO_FIXED_ENDPOINT, since fp->protocol is not set in setup process. As a consequence, audio streams would not get initialized, as the following logs show: [ 48.923043] setting usb interface 3:1 [ 48.923056] Creating new capture data endpoint torvalds#81 [ 48.923484] 4:3:1: cannot set freq 48000 to ep 0x81 This patch sets fp->protocol in create_fixed_stream_quirk() and resolves the regression. Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>

Turn it into (for example): [ 0.073380] x86: Booting SMP configuration: [ 0.074005] .... node #0, CPUs: alexander-zimmermann#1 #2 #3 #4 #5 torvalds#6 torvalds#7 [ 0.603005] .... node alexander-zimmermann#1, CPUs: torvalds#8 torvalds#9 torvalds#10 torvalds#11 torvalds#12 torvalds#13 torvalds#14 torvalds#15 [ 1.200005] .... node #2, CPUs: torvalds#16 torvalds#17 torvalds#18 torvalds#19 torvalds#20 torvalds#21 torvalds#22 torvalds#23 [ 1.796005] .... node #3, CPUs: torvalds#24 torvalds#25 torvalds#26 torvalds#27 torvalds#28 torvalds#29 torvalds#30 torvalds#31 [ 2.393005] .... node #4, CPUs: torvalds#32 torvalds#33 torvalds#34 torvalds#35 torvalds#36 torvalds#37 torvalds#38 torvalds#39 [ 2.996005] .... node #5, CPUs: torvalds#40 torvalds#41 torvalds#42 torvalds#43 torvalds#44 torvalds#45 torvalds#46 torvalds#47 [ 3.600005] .... node torvalds#6, CPUs: torvalds#48 torvalds#49 torvalds#50 torvalds#51 #52 #53 torvalds#54 torvalds#55 [ 4.202005] .... node torvalds#7, CPUs: torvalds#56 torvalds#57 #58 torvalds#59 torvalds#60 torvalds#61 torvalds#62 torvalds#63 [ 4.811005] .... node torvalds#8, CPUs: torvalds#64 torvalds#65 torvalds#66 torvalds#67 torvalds#68 torvalds#69 #70 torvalds#71 [ 5.421006] .... node torvalds#9, CPUs: torvalds#72 torvalds#73 torvalds#74 torvalds#75 torvalds#76 torvalds#77 torvalds#78 torvalds#79 [ 6.032005] .... node torvalds#10, CPUs: torvalds#80 torvalds#81 torvalds#82 torvalds#83 torvalds#84 torvalds#85 torvalds#86 torvalds#87 [ 6.648006] .... node torvalds#11, CPUs: torvalds#88 torvalds#89 torvalds#90 torvalds#91 torvalds#92 torvalds#93 torvalds#94 torvalds#95 [ 7.262005] .... node torvalds#12, CPUs: torvalds#96 torvalds#97 torvalds#98 torvalds#99 torvalds#100 torvalds#101 torvalds#102 torvalds#103 [ 7.865005] .... node torvalds#13, CPUs: torvalds#104 torvalds#105 torvalds#106 torvalds#107 torvalds#108 torvalds#109 torvalds#110 torvalds#111 [ 8.466005] .... node torvalds#14, CPUs: torvalds#112 torvalds#113 torvalds#114 torvalds#115 torvalds#116 torvalds#117 torvalds#118 torvalds#119 [ 9.073006] .... node torvalds#15, CPUs: torvalds#120 torvalds#121 torvalds#122 torvalds#123 torvalds#124 torvalds#125 torvalds#126 torvalds#127 [ 9.679901] x86: Booted up 16 nodes, 128 CPUs and drop useless elements. Change num_digits() to hpa's division-avoiding, cell-phone-typed version which he went at great lengths and pains to submit on a Saturday evening. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: huawei.libin@huawei.com Cc: wangyijing@huawei.com Cc: fenghua.yu@intel.com Cc: guohanjun@huawei.com Cc: paul.gortmaker@windriver.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20130930095624.GB16383@pd.tnic Signed-off-by: Ingo Molnar <mingo@kernel.org>

ariccio · 2014-03-22T22:46:52Z

Your other "joke" pull request made me laugh a bit. However, the linux kernel (particularly torvalds:master) isn't the place for this kind of humor.

joshkurz · 2014-03-23T04:52:34Z

yes @raincoats you should be banned for life...

raincoats · 2014-03-23T08:28:42Z

@joshkurz lol u k

IDM350 · 2014-03-23T17:11:52Z

The code itself is useless. For one thing, you didn't even declare facebook_login_is_correct and what it is or does, you aren't working with Facebook at all in this code. Next up, facebook_login_is_correct can't be both a function and a boolean. You only broke it all. Then there's for (;;){sleep();}, which means sleep() will run and nothing else, and that is in the kernel which is responsible for what code is running at all times, so on ACCESS DENIED the computer just hangs and freezes.

Forget about that, Linux is only the kernel. Linux by itself does not have the user interface, the authentication control, or even the core system startup/service manager. Get out of this misconception that "Linux" is the whole operating system. You're modifying the Linux kernel, the part that goes in between to manage processes and drivers, applies contexts such as privileges and filesystem locations, and generally is responsible for what code is running at all times.

The correct form of what you're trying to achieve is actually a http://linux-pam.org/Linux-PAM-html/Linux-PAM_MWG.html module for logging in with Facebook, and maybe a GDM greeter which has a discrete "Login with Facebook" option, but this retarded try with the kernel should be closed.

OrdinaryMagician · 2014-03-23T17:30:35Z

Oh please, this isn't funny.

raincoats · 2014-03-23T20:53:55Z

oh get over it stop clogging my emails

clfarron4 · 2014-04-10T15:35:33Z

Is there any benefit to having this in kernel space instead of user-space?

This commit fixes the following checkpatch warnings: WARNING: externs should be avoided in .c files torvalds#80: FILE: drivers/staging/dgnc/dgnc_driver.c:80: +int dgnc_init_module(void); torvalds#81: FILE: drivers/staging/dgnc/dgnc_driver.c:81: +void dgnc_cleanup_module(void); This was caused by putting the declarations for module init and module exit fucntions on the top of the file. The fix removes these declarations plus it also corrects the type of the init/exit functions. Due to the dependency between init and exit functions the dgnc_cleanup_module had to be put first. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

GIT 1b28f1c3d6821c20f42c22e977999fffbf0c0331 commit 78cbcabd472b197dc8ae7abd11f197efe611211a Author: Peter Foley <pefoley2@pefoley.com> Date: Mon Sep 22 09:31:10 2014 +1000 Documentation: disable vdso_test to avoid breakage with old glibc glibc versions older than 2.16 don't include sys/auxv.h which this executable uses. Since we don't have a good way to test for specific glibc versions in kbuild, just disable it for now. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit c5a967ad6aba3adc9b61f28d799be4fdf815e6bf Author: Peter Foley <pefoley2@pefoley.com> Date: Mon Sep 22 09:31:10 2014 +1000 Documentation: update vDSO makefile to build portable examples Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit dee40f0c69658d15a49a3dbca4f105410f561ad4 Author: Peter Foley <pefoley2@pefoley.com> Date: Mon Sep 22 09:31:09 2014 +1000 Documentation: update .gitignore files Add some missing files to .gitignore. Push Documentation/.gitignore down into subdirectories. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit 7f73b38710908162de63e9c940e1a0c26810dd19 Author: Peter Foley <pefoley2@pefoley.com> Date: Mon Sep 22 09:31:09 2014 +1000 Documentation: support glibc versions without htole macros glibc 2.9 introduced the htole<16/32/64> macros, add them to tools/include to support older versions of glibc. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit c06fccd3288d690700b0d2824485ba925d09abd4 Author: Mark Brown <broonie@kernel.org> Date: Mon Sep 22 09:31:08 2014 +1000 v4l2-pci-skeleton: Only build if PCI is available Currently arm64 does not support PCI but it does support v4l2. Since the PCI skeleton driver is built unconditionally as a module with no dependency on PCI this causes build failures for arm64 allmodconfig. Fix this by defining a symbol VIDEO_PCI_SKELETON for the skeleton and conditionalising the build on that. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> [added VIDEO dependencies] commit c735483de1a2cd5d6c6b67bf49cfb2991eae6ea6 Author: Helge Deller <deller@gmx.de> Date: Sun Sep 21 22:31:08 2014 +0200 parisc: pdc_stable.c: Avoid potential stack overflows Signed-off-by: Helge Deller <deller@gmx.de> commit 94c457deff2a211f8372f69a4d7b0d288183756a Author: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Date: Sun Sep 14 18:02:12 2014 +0200 parisc: pdc_stable.c: Cleaning up unnecessary use of memset in conjunction with strncpy Using memset before strncpy just to ensure a trailing null character is an unnecessary double writing of a string Patch modified by Helge Deller to additionally reduce stack usage. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Helge Deller <deller@gmx.de> commit fe5c873459a973e59854bd235a7e6b3eaa8e5fe0 Author: Helge Deller <deller@gmx.de> Date: Sun Sep 21 21:01:15 2014 +0200 parisc: ptrace: use secure_computing_strict() Signed-off-by: Helge Deller <deller@gmx.de> commit 5466112f0935f079e225514905c57d5e5285a9b6 Author: Trond Myklebust <trond.myklebust@primarydata.com> Date: Thu Sep 18 17:03:46 2014 -0400 pnfs/blocklayout: Fix a 64-bit division/remainder issue in bl_map_stripe kbuild test robot reports: fs/built-in.o: In function `bl_map_stripe': >> :(.text+0x965b4): undefined reference to `__aeabi_uldivmod' >> :(.text+0x965cc): undefined reference to `__aeabi_uldivmod' >> :(.text+0x96604): undefined reference to `__aeabi_uldivmod' Fixes: 5c83746a0cf2 (pnfs/blocklayout: in-kernel GETDEVICEINFO XDR parsing) Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> commit 9c58c79a8a76c510cd3a5012c536d4fe3c81ec3b Author: Zhihui Zhang <zzhsuny@gmail.com> Date: Sat Sep 20 21:24:36 2014 -0400 sched: Clean up some typos and grammatical errors in code/comments Signed-off-by: Zhihui Zhang <zzhsuny@gmail.com> Cc: peterz@infradead.org Link: http://lkml.kernel.org/r/1411262676-19928-1-git-send-email-zzhsuny@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org> commit 6a40281ab5c1ed8ba2253857118a5d400a2d084b Author: Chuck Ebbert <cebbert.lkml@gmail.com> Date: Sat Sep 20 10:17:51 2014 -0500 sched: Fix end_of_stack() and location of stack canary for architectures using CONFIG_STACK_GROWSUP Aaron Tomlin recently posted patches [1] to enable checking the stack canary on every task switch. Looking at the canary code, I realized that every arch (except ia64, which adds some space for register spill above the stack) shares a definition of end_of_stack() that makes it the first long after the threadinfo. For stacks that grow down, this low address is correct because the stack starts at the end of the thread area and grows toward lower addresses. However, for stacks that grow up, toward higher addresses, this is wrong. (The stack actually grows away from the canary.) On these archs end_of_stack() should return the address of the last long, at the highest possible address for the stack. [1] http://lkml.org/lkml/2014/9/12/293 Signed-off-by: Chuck Ebbert <cebbert.lkml@gmail.com> Link: http://lkml.kernel.org/r/20140920101751.6c5166b6@as Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: James Hogan <james.hogan@imgtec.com> [metag] Acked-by: James Hogan <james.hogan@imgtec.com> Acked-by: Aaron Tomlin <atomlin@redhat.com> commit 0c7bf3e8cab7900e17ce7f97104c39927d835469 Author: Zefan Li <lizefan@huawei.com> Date: Sat Sep 20 14:49:10 2014 +0800 cgroup: remove redundant variable in cgroup_mount() Both pinned_sb and new_sb indicate if a new superblock is needed, so we can just remove new_sb. Note now we must check if kernfs_tryget_sb() returns NULL, because when it returns NULL, kernfs_mount() may still re-use an existing superblock, which is just allocated by another concurent mount. Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Zefan Li <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org> commit 3e2cd91ab92665148616a80dc0745c499d2746a7 Author: Zefan Li <lizefan@huawei.com> Date: Sat Sep 20 14:35:43 2014 +0800 cgroup: fix missing unlock in cgroup_release_agent() The patch 971ff4935538: "cgroup: use a per-cgroup work for release agent" from Sep 18, 2014, leads to the following static checker warning: kernel/cgroup.c:5310 cgroup_release_agent() warn: 'mutex:&cgroup_mutex' is sometimes locked here and sometimes unlocked. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Zefan Li <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org> commit 93b8877471796c04c16fdef755d4e5c0f521509f Author: Alexander Shiyan <shc_work@mail.ru> Date: Sat Sep 20 09:34:45 2014 +0400 tty: serial_mctrl_gpio: Fix COMPILE_TEST build for architectures with custom termios.h This patch fixes COMPILE_TEST build of serial_mctrl_gpio module for architectures with custom termios.h header. sparc64:allmodconfig: In file included from drivers/tty/serial/serial_mctrl_gpio.c:21:0: include/uapi/asm-generic/termios.h:22:8: error: redefinition of 'struct termio' ./arch/sparc/include/uapi/asm/termbits.h:16:8: note: originally defined here make[3]: *** [drivers/tty/serial/serial_mctrl_gpio.o] Error 1 Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit d07fe967189ff7c32f5a78b4f28c2ccbab850091 Author: Chen-Yu Tsai <wens@csie.org> Date: Thu Sep 18 11:24:40 2014 +0800 ARM: dts: sun8i: Add DMA controller node Add the DMA controller node and DMA bindings to the supported devices. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> commit e625305b390790717cf2cccf61efb81299647028 Author: Tejun Heo <tj@kernel.org> Date: Sat Sep 20 01:27:25 2014 -0400 percpu-refcount: make percpu_ref based on longs instead of ints percpu_ref is currently based on ints and the number of refs it can cover is (1 << 31). This makes it impossible to use a percpu_ref to count memory objects or pages on 64bit machines as it may overflow. This forces those users to somehow aggregate the references before contributing to the percpu_ref which is often cumbersome and sometimes challenging to get the same level of performance as using the percpu_ref directly. While using ints for the percpu counters makes them pack tighter on 64bit machines, the possible gain from using ints instead of longs is extremely small compared to the overall gain from per-cpu operation. This patch makes percpu_ref based on longs so that it can be used to directly count memory objects or pages. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Kent Overstreet <kmo@daterainc.com> Cc: Johannes Weiner <hannes@cmpxchg.org> commit 4843c3320c3d23ab4ecf520f5eaf485aff8c7252 Author: Tejun Heo <tj@kernel.org> Date: Sat Sep 20 01:27:24 2014 -0400 percpu-refcount: improve WARN messages percpu_ref's WARN messages can be a lot more helpful by indicating who's the culprit. Make them report the release function that the offending percpu-refcount is associated with. This should make it a lot easier to track down the reported invalid refcnting operations. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Kent Overstreet <kmo@daterainc.com> commit 6d967f8789249628a6388a3a4314c5fef423f36a Author: Andy Zhou <azhou@nicira.com> Date: Fri Sep 19 18:02:53 2014 -0700 udp_tunnel: Only build ip6_udp_tunnel.c when IPV6 is selected Functions supplied in ip6_udp_tunnel.c are only needed when IPV6 is selected. When IPV6 is not selected, those functions are stubbed out in udp_tunnel.h. ================================================================== net/ipv6/ip6_udp_tunnel.c:15:5: error: redefinition of 'udp_sock_create6' int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg, In file included from net/ipv6/ip6_udp_tunnel.c:9:0: include/net/udp_tunnel.h:36:19: note: previous definition of 'udp_sock_create6' was here static inline int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg, ================================================================== Fixes: fd384412e udp_tunnel: Seperate ipv6 functions into its own file Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 3f76a4ea5383ba2f9e76f9625f77ff246907a134 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Thu Sep 18 19:27:09 2014 +0530 Staging: rtl8192e: Fix __constant_htons to htons style warning This fixes the following checkpatch.pl warning: WARNING: __constant_htons should be htons Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 288903f6b91e759b0a813219acd376426cbb8f14 Author: Catalina Mocanu <catalina.mocanu@gmail.com> Date: Fri Sep 19 15:55:05 2014 -0700 staging: iio: cdc: Don't put an else right after a return This fixes the following checkpatch.pl warning: WARNING: else is not generally useful after a break or return. While at it, remove new line for symmetry with the rest of the code. Signed-off-by: Catalina Mocanu <catalina.mocanu@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 0a5fcc6b2efdc86619af793e0216a508469cfaa4 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 23:32:05 2014 +0300 staging: octeon: Fix quoted string split warning. This patch fixes "quoted string split across lines" checkpatch.pl warning in ethernet.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 39bc7513aa92b38c391dbe9649841f9f9dfcd0ac Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 23:27:39 2014 +0300 staging: octeon: Fix missing blank line warning. Fixes "Missing a blank line after declarations" checkpatch.pl warning in ethernet.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 1ff99b312f9c94516acb38bad7421ba1d74abeb2 Author: Roberta Dobrescu <roberta.dobrescu@gmail.com> Date: Fri Sep 19 23:34:36 2014 +0300 staging: emxx_udc: Replace __constant_cpu_to_le16 with cpu_to_le16 This fixes the following checkpatch.pl warning: WARNING: __constant_cpu_to_le16 should be cpu_to_le16 Additionally, it removes the space between function name and (. Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 113f5f24c6be6f7d888946320d01b51b81aa213d Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Fri Sep 19 00:31:44 2014 +0300 Staging: rtl8821ae: Fix warnings of no space before tabs. This patch fixes these warning messages found by checkpatch.pl: WARNING: please, no space before tabs. Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit a45cbb78147e8f57250f1687f5b61470b8343a20 Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Thu Sep 18 23:56:13 2014 +0300 Staging: rtl8821ae: Fix "foo * bar" warning. This patch fixes these error messages found by checkpatch.pl: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 34c376fe07342e06f531504b01d3b953962e456c Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Thu Sep 18 01:03:28 2014 +0300 Staging: wlan-ng: Fix return in void function warning This fixes checkpatch.pl warning: WARNING: void function return statements are not generally useful Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit fcf1b73d08cd15912205f3b259ea81ccfde11970 Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Thu Sep 18 00:54:04 2014 +0300 Staging: media: cxd2099: Missing a blank line after declarations Fix checkpatch.pl issues with missing a blank line after declarations in cxd2099.c Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit c2e91542695270452ea7b5d3266ad0e9b5dc7bdb Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Wed Sep 17 23:43:15 2014 +0300 Staging: octeon: Missing a blank line after declarations Fix checkpatch.pl issues with missing a blank line after declarations in ethernet-sgmii.c Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 05fd349b1750d456423538e69c3c1d4d8a10f1c8 Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Wed Sep 17 16:10:36 2014 +0300 staging: gs_fpgaboot Fix trailing whitespace. Fix checkpatch.pl issues with trailing whitespace in README. Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit de77c125f57a308250cfaec945541fd8abe0e054 Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Wed Sep 17 15:33:25 2014 +0300 staging: bcm: Fix line over 80 characters Fix checkpatch.pl issues with line over 80 characters in HandleControlPacket.c Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 5ad6ae1acfd883d8f4c8998b4e5bc9d4aea7985f Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sun Sep 21 01:20:44 2014 +0300 staging: media: lirc: Fixes missing blank line warning. Fixes "Missing a blank line after declarations" checkpatch.pl warning in lirc_serial.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit a5613fe8967534ce626875fab4bcface70d366b4 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sun Sep 21 01:26:03 2014 +0300 staging: media: lirc: Fixes unnecessary return warning. This patch fixes "void function return statements are not generally useful" checkpatch.pl warning in lirc_zilog.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit a17ec4c9fd07d3f4760cc6545b54f8323ea6ccb4 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sun Sep 21 01:06:55 2014 +0300 staging: media: lirc: Fix missing blank line warning. Fixes "Missing a blank line after declarations" checkpatch.pl warning in lirc_bt829.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 3f8028023c3f6804751a920d97e9c8dffc575cc0 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sun Sep 21 01:02:21 2014 +0300 staging: media: lirc: Fix missing blank line warning. Fixes "Missing a blank line after declarations" checkpatch.pl warning in lirc_sasem.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit a87ba73ed10266dba8278b2a6b89da597a38092a Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sun Sep 21 00:59:11 2014 +0300 staging: media: lirc: Fix unnecessary return warning. This patch fixes "void function return statements are not generally useful" checkpatch.pl warning in lirc_sasem.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit fd8392f3097140a9db7b0903a63635e652b6eb45 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 22:46:57 2014 +0300 staging: media: lirc: Fix missing blank line warning. Fixes "Missing a blank line after declarations" checkpatch.pl warning in lirc_zilog.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 3170f3277b1809c19fe4a45914cffa0e09471973 Author: Tina Johnson <tinajohnson.1234@gmail.com> Date: Wed Sep 17 03:14:52 2014 +0530 Staging: media: lirc: lirc_imon: Removed unnecessary variable to simplify return variable handling Variable rc was removed after merging its assignment statement with immediately following return statement. Variable retval is not used at all other that to return its initial value.Hence replaced retval with its initial value in the return statement and removed the variable. This patch was done using Coccinelle script and the following semantic patch was used: @rule1@ identifier ret; expression e; @@ -int ret = 0; ... when != ret ( -ret = e; +return e; -return ret; | -return ret; +return 0; ) Signed-off-by: Tina Johnson <tinajohnson.1234@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 8ad5360ad81a32b4e9fdc956e7c453308050a97d Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 21:39:46 2014 +0300 staging: lustre: lnet: lnet: Fixed quoted string split warning. This patch fixes "quoted string split across lines" checkpatch.pl warning in api-ni.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 70b694c32e405cff8e2640b3943ed9598d97f75e Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 21:48:00 2014 +0300 staging: lustre: lnet: lnet: Fix missing line warning. This patch fixes "Fixes "Missing a blank line after declarations" checkpatch.pl warning in api-ni.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit a446b47d5d815865c2715da8fab1a7c06f1338ca Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 21:53:31 2014 +0300 staging: lustre: lnet: lnet: Fix quoted string split warning. This patch fixes "quoted string split across lines" checkpatch.pl warning in lib-eq.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 3e9cc5b0450a40be3442a82a5a5293f85ca06c7d Author: Darshana Padmadas <darshanapadmadas@gmail.com> Date: Wed Sep 17 20:58:43 2014 +0530 Staging: lustre: Fix return in void function warning This fixes checkpatch.pl warning: WARNING: void function return statements are not generally useful Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 6606a77f92821f8bfd4b1b6ba296da662fecb640 Author: Darshana Padmadas <darshanapadmadas@gmail.com> Date: Wed Sep 17 20:28:54 2014 +0530 Staging: lustre: place open brace following struct on same line This patch fixes checkpatch.pl warning: WARNING: open brace following struct goes on the same line. Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 4467a945fc08c0d6624b1dd64cfcc2cbd3b3dee3 Author: Darshana Padmadas <darshanapadmadas@gmail.com> Date: Wed Sep 17 18:14:45 2014 +0530 Staging: lustre: libcfs: fix checkpatch warning else after return statement Fix checkpatch warning by removing unnecessary else after return statement. Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit f5740b2e7e74fa9ba915aa74bfba7cf849dce8a7 Author: Darshana Padmadas <darshanapadmadas@gmail.com> Date: Tue Sep 16 13:24:13 2014 +0530 Staging: lustre: include: libcfs: removed else before return statement in libcfs_crypto.h This is a patch to libcfs_crypto.h that fixes warning on unnecessary else before return statement found by checkpatch.pl tool. Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 225557bf274ed1519362865815da7425533191d1 Author: Roxana Blaj <roxanagabriela10@gmail.com> Date: Mon Sep 15 14:58:44 2014 +0300 staging: speakup: fix checkpatch warning This fixes the checkpatch warning: WARNING: line over 80 characters Signed-off-by: Roxana Blaj <roxanagabriela10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 0a3a725adb2c421ea79089ea12004a007fb371ce Author: Roxana Blaj <roxanagabriela10@gmail.com> Date: Sun Sep 14 20:28:53 2014 +0300 staging: speakup: fix checkpatch warning This fixes the cheackpatch warning: WARNING: Missing a blank line after declarations Signed-off-by: Roxana Blaj <roxanagabriela10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 472fe30efd52fde30249a04971a62151e0606c1d Author: Nicoleta Birsan <nicolle.birsan@gmail.com> Date: Sun Sep 14 03:38:34 2014 -0700 Staging: speakup: fix checkpatch warning This fixes the following checkpatch.pl warning: WARNING: Missing a blank line after declarations Signed-off-by: Nicoleta Birsan <nicolle.birsan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 297cbdaeca2b68aaae6bbb7affa4533430e8e91a Author: Blaj Roxana <roxanagabriela10@gmail.com> Date: Tue Sep 16 20:13:28 2014 +0300 staging: skein: replace spaces with tabs This fixes the error and warning: ERROR: code indent should use tabs where possible WARNING: please, no spaces at the start of a line Signed-off-by: Blaj Roxana <roxanagabriela10@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit fb33aa47a00edc789d17d80174cd3ed8a1c82c66 Author: Roberta Dobrescu <roberta.dobrescu@gmail.com> Date: Sat Sep 20 00:01:39 2014 +0300 staging: dgnc: Check sscanf return value This fixes the following checkpatch.pl warnings: WARNING: unchecked sscanf return value Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit f23e875fd26a05a0850db7c5e090030c80b4f583 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 19:34:45 2014 +0300 staging: dgnc: Fix unnecessary space warning. Fixed "Unnecessary space before function pointer argument" checkpatch.pl warning in dgnc_driver.h Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit e8756d4a51d1246be36c5621827c288eb2d5e9b7 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 19:31:15 2014 +0300 staging: dgnc: Fix missing blank line warning. Fixes "Missing a blank line after declarations" checkpatch.pl warning in dgnc_sysfs.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 3dfe7557809e5867306c7a0614b9d1c6036cbe4d Author: Vaishali Thakkar <vthakkar1994@gmail.com> Date: Fri Sep 19 10:30:59 2014 +0530 Staging: dgnc: Merge lines and remove unused variable for immediate return This patch merges two lines in a single line if immediate return is found. It also removes unnecessory variable rc as it is no longer needed. This is done using Coccinelle. Semantic patch used for this is as follows: @@ type T; identifier i; identifier f; constant C; @@ - T i; ...when != i when strict ( return -C; | - i = + return f(...); - return i; ) Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Reviewed-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 10352c2a69f4aa2724f007a4922518c9ece7bf89 Author: Roberta Dobrescu <roberta.dobrescu@gmail.com> Date: Thu Sep 18 21:38:04 2014 +0300 staging: dgnc: Move open brace on previous line This fixes the following checkpatch.pl errors: ERROR: that open brace { should be on the previous line Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 05a70e14035438e6866d7fcf8a79c67b8e1425e1 Author: Roberta Dobrescu <roberta.dobrescu@gmail.com> Date: Tue Sep 16 20:33:03 2014 +0300 staging: dgnc: Do not initialise statics to 0 or NULL This fixes the following checkpatch.pl error: ERROR: do not initialise statics to 0 or NULL Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com> Acked-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit b051017fb4e593998fc46ec9a991ad390c9114b5 Author: Roberta Dobrescu <roberta.dobrescu@gmail.com> Date: Mon Sep 15 21:32:59 2014 +0300 staging: dgnc: Replace kzalloc with kcalloc This fixes the following checkpatch.pl warnings: WARNING: Prefer kcalloc over kzalloc with multiply Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit f3dadd29f7197d93d0441391f5e3815bf008cce1 Author: Roberta Dobrescu <roberta.dobrescu@gmail.com> Date: Sun Sep 14 23:13:20 2014 +0300 staging: dgnc: Fix warnings relating to printk() This fixes the following checkpatch.pl warnings: WARNING: printk() should include KERN_ facility level It replaces printk() with dev_dbg() in order to avoid the warning that a more specific function should be used. Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 2be13f7b7c63cecc439876c8c06a5b30afdf46f9 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 04:59:59 2014 +0530 Staging: rtl8192ee: rtl8192ee: Fix missing blank line warning This fixes the following checkpatch.pl warnings: WARNING: Missing a blank line after declarations Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit b9209a93edbccafb6c2f860bc0ddfe9eda1e3ccd Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 04:49:43 2014 +0530 Staging: rtl8192ee: Fix else not useful style warning This fixes the following checkpatch.pl warnings: WARNING: else is not generally useful after a break or return Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 1709a582e1f8977de040f02d9e9e52ec89f8603f Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 04:03:36 2014 +0530 Staging: rtl8192ee: Fix break is not useful warning This fixes the following checkpatch.pl warnings: WARNING: break is not useful after a goto or return Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit fe6dc85eaf8bb180ad3510a57bd69f3b8f9c2dbb Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 03:42:01 2014 +0530 Staging: rtl8192ee: Fix else is not useful warning This fixes the following checkpatch.pl warnings: WARNING: else is not generally useful after a break or return Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit f41788b7c933127863435f72f456ec46ed5540b2 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 03:29:19 2014 +0530 Staging: rtl8192ee: Fix missing blank line warning This fixes the following checkpatch.pl warnings: WARNING: Missing a blank line after declarations Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit ad39fe743419d58f9bc29373189c93ba2251e675 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 02:43:26 2014 +0530 Staging: rtl8192e: Fix printk debug style warning This fixes the following checkpatch.pl warnings: WARNING: Prefer [subsystem eg: netdev]_dbg([subsystem]dev, ... then dev_dbg(dev, ... then pr_debug(... to printk(KERN_DEBUG ... Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 4344672830d8500eac97d82976b03e41580c3a04 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 02:40:43 2014 +0530 Staging: rtl8192e: Fix printk style warning This fixes the following checkpatch.pl warnings: WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then dev_info(dev, ... then pr_info(... to printk(KERN_INFO ... Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 6af197672f2330045c171aed3ea90fb93d89ecc6 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 02:38:39 2014 +0530 Staging: rtl8192e: Fix space before semicolon warning This fixes the following checkpatch.pl warning: WARNING: space prohibited before semicolon Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 13402f7b76223e7f50ab42c82aac4788940c8277 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Sat Sep 20 02:36:31 2014 +0530 Staging: rtl8192e: Fix else is not useful warning This fixes the following checkpatch.pl warning: WARNING: else is not generally useful after a break or return Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 5110e40260d03fdb2d93a94fec06a31b81d57b0b Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Fri Sep 19 23:56:02 2014 +0530 Staging: rtl8192e: Fix void function return statements style warning This fixes the following checkpatch.pl warnings: WARNING: void function return statements are not generally useful Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 59422a74b55c616d500c3be721077ff0d00f7fb0 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Fri Sep 19 23:12:53 2014 +0530 Staging: rtl8192e: Fix else is not useful style warning This fixes the following checkpatch.pl warnings: WARNING: else is not generally useful after a break or return Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 1f921b9f61b1a324366c8f6a02c5a8e89164ed52 Author: Vaishali Thakkar <vthakkar1994@gmail.com> Date: Fri Sep 19 22:22:19 2014 +0530 Staging: rtl8192e: Fixed style warning relating to printk() This patch fixes following checkpatch.pl warning in file rtl_dm.c: WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then dev_info(dev, ... then pr_info(... to printk(KERN_INFO . Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 52e93b8ab435978bc12280aa4418ef25fd6e74f2 Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Fri Sep 19 05:22:33 2014 +0530 Staging: rtl8192e: Fix unnecessary parentheses style warning This fixes the following checkpatch.pl warning: WARNING: Unnecessary parentheses - maybe == should be = ? Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit fee9d3e61d04422628a3d22ed5eb8370dcef259b Author: Chris J Arges <chris.j.arges@canonical.com> Date: Wed Aug 27 13:26:53 2014 -0500 ktest: add ability to skip during BISECT_MANUAL When doing a manual bisect, a build can fail or a test can be inconclusive. In these cases it would be helpful to be able to skip the test entirely. Link: http://lkml.kernel.org/r/1409164021-2136-1-git-send-email-chris.j.arges@canonical.com Reviewed-by: Satoru Takeuchi <satoru.takeuchi@gmail.com> Signed-off-by: Chris J Arges <chris.j.arges@canonical.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> commit 4af409f6c38029e1eda0a5e7bbf15e9b1b7d7fab Author: Benedict Boerger <benedict.boerger@cs.tu-dortmund.de> Date: Thu Sep 18 17:46:23 2014 +0200 staging: rtl8192u: delete unused function CAM_read_entry Fix the sparse warning: symbol 'CAM_read_entry' was not declared. Should it be static? The function CAM_read_entry is not used and therefore deleted. Signed-off-by: Benedict Boerger <benedict.boerger@cs.tu-dortmund.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 77baad9e4d71e75d7ad6ee83454113d4a6a7b04d Author: Ragnar B. Johannsson <ragnar@igo.is> Date: Thu Sep 18 14:33:25 2014 +0000 staging: rtl8192u: Move ieee80211_crypto_* declarations to ieee80211/ieee80211.h Move ieee80211_crypto*_init and _exit prototype declarations from r8192U_core.c to ieee80211/ieee80211.h. This fixes the following sparse warnings: drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c:203:12: warning: symbol 'ieee80211_crypto_init' was not declared. Should it be static? drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c:223:13: warning: symbol 'ieee80211_crypto_deinit' was not declared. Should it be static? drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c:764:12: warning: symbol 'ieee80211_crypto_tkip_init' was not declared. Should it be static? drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c:769:13: warning: symbol 'ieee80211_crypto_tkip_exit' was not declared. Should it be static? drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c:467:12: warning: symbol 'ieee80211_crypto_ccmp_init' was not declared. Should it be static? drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c:472:13: warning: symbol 'ieee80211_crypto_ccmp_exit' was not declared. Should it be static? drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c:281:12: warning: symbol 'ieee80211_crypto_wep_init' was not declared. Should it be static? drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c:286:13: warning: symbol 'ieee80211_crypto_wep_exit' was not declared. Should it be static? Signed-off-by: Ragnar B. Johannsson <ragnar@igo.is> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 5635b82a553620c511dc6bc8cb0990c0a791e21e Author: Mahati Chamarthy <mahati.chamarthy@gmail.com> Date: Thu Sep 18 15:43:53 2014 +0530 Staging: rtl8192e: Fix style warnings relating to printk(KERN_DEBUG This fixes the following checkpatch.pl warnings: WARNING: Prefer [subsystem eg: netdev]_dbg([subsystem]dev, ... then dev_dbg(dev, ... then pr_debug(... to printk(KERN_DEBUG ... Signed-off-by: Mahati Chamarthy <mahati.chamarthy@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit fe40a0b361de10ea794116160308cc7fd0b7fbeb Author: Vaishali Thakkar <vthakkar1994@gmail.com> Date: Wed Sep 17 08:35:24 2014 +0530 Staging: rtl8192e: rtl8192e: Remove unnecessory braces and space This patch removes following checkpatch.pl warnings in rtl_core.c file: WARNING: Braces {} are not necessary for single statement blocks WARNING: Space prohibited before semicolon Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 5c8b3961da9a55762ea5481e8f9412c0d18dc684 Author: Vaishali Thakkar <vthakkar1994@gmail.com> Date: Wed Sep 17 08:02:43 2014 +0530 Staging: rtl8192e: rtl8192e: Remove unnecessory variable This patch removes unnecessory variable in file ret_core.c using coccinelle script.Semantic patch for this is as follows: @@ identifier ret; @@ -int ret = 0; ... when != ret when strict -return ret; +return 0; Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 23a0e1611b880bd8d94bbebcb3577c9f78029435 Author: Steven Rostedt (Red Hat) <rostedt@goodmis.org> Date: Fri Sep 19 20:10:39 2014 -0400 ktest: Add PATCHCHECK_CHERRY Add a way to run a patchcheck test on the commits that are in one branch but not in another. This uses git cherry to find a list of commits to test each one with. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> commit 4309635f692192ddcc540964189d92cad0ade249 Author: Rajbinder Brar <brar.rajbinder@gmail.com> Date: Tue Sep 16 11:25:31 2014 +0530 Staging: vt6655: Break 80 character long line to remove checkpatch error This removes checkpatch.pl warning WARNING: line over 80 characters Signed-off-by: Rajbinder Brar <brar.rajbinder@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit b377ed4cce004d7c3dbd92cffdbf2aa21d28e2e6 Author: Rajbinder Brar <brar.rajbinder@gmail.com> Date: Wed Sep 17 21:27:03 2014 +0530 Staging: vt6656: Removing else after break statement to fix warning This patch fixes the checkpatch.pl warning in baseband.c file WARNING: else is not useful after a break or return Signed-off-by: Rajbinder Brar <brar.rajbinder@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit dbc6ee63d4355a51fd84ee8ebf127763180b1585 Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Fri Sep 19 19:49:33 2014 +0300 Staging: vt6655: Fix C99 style commenting. This patch fixes these error messages found by checkpatch.pl: ERROR: do not use C99 // comments Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit a600f4589fdbb51a0ad885408f996ec0f1f90be9 Author: Abel Moyo <abelmoyo.ab@gmail.com> Date: Thu Sep 18 21:49:10 2014 +0200 Staging: gdm724x: gdm_usb: added error checking in do_tx() Added error checking for alloc_tx_struct in do_tx() Signed-off-by: Abel Moyo <abelmoyo.ab@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 37d963fb80d2fd944bd0124570b2adc5b826ccef Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sat Sep 20 20:43:53 2014 +0300 staging: gdm724x: Fix missing blank line warning. Fixes "Missing a blank line after declarations" checkpatch.pl warning in gdm_mux.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 492a1e7be585c88a04ba763bb77fc865700e209d Author: Daeseok Youn <daeseok.youn@gmail.com> Date: Tue Sep 16 16:19:06 2014 +0900 staging: dgap: use schedule_timeout_interruptible() instead of dgap_ms_sleep() Using schedule_timeout_interruptible() is exactly same as setting a status of current process and calling schedule_timeout(). Removes dgap_ms_sleep(), because this function is used only when closing tty channel on dgap_tty_close(). And also removes ch_close_delay that is always set to 250 on dgap_tty_init(). Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 335d9c85be096cf492cb3eaeef160b45e1f25d8d Author: Ankita Patil <patil.ankita.r@gmail.com> Date: Thu Sep 18 12:31:00 2014 +0530 Staging: dgap: Remove unnecessary variable. This patch removes unnecessary variable in file dgap.c using Coccinelle. Semantic patch for this is as follows: @@ expression ret; identifier f; @@ -ret = +return f(...); -return ret; Also removed the unneeded variable manually. Signed-off-by: Ankita Patil <patil.ankita.r@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 50d0a21b61f22b38f881fa21d2ada6ab4a61f93f Author: Purnendu Kapadia <pro8linux@gmail.com> Date: Mon Sep 15 13:06:36 2014 +0100 staging: android: sw_sync: checkpatch fixes - no space after cast - allignment should match open parenthesis - remove unnecessary new line Signed-off-by: Purnendu Kapadia <pro8linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 1f0f6c9862b687db36f5e853402f76bc118ff0bf Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Fri Sep 19 01:58:29 2014 +0300 Staging: rtl8723au: hal: Space prohibited before semicolon This patch fixes these warning messages found by checkpatch.pl: WARNING: Space prohibited before semicolon. Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 8c09757d91703ccbf0da9fc67764de9714c9e615 Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Fri Sep 19 02:23:53 2014 +0300 Staging: rtl8723au: core: Fix unnecassary braces warning. This patch fixes these warning messages found by checkpatch.pl: WARNING: braces {} are not necessary for single statement blocks Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 867ce1bd68fb1eadb70b82bcda1e451b27ff824a Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Fri Sep 19 02:33:38 2014 +0300 Staging: rtl8723au: core: Fix "foo * bar" warning. This patch fixes these error messages found by checkpatch.pl: ERROR: "foo* bar" should be "foo *bar" Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit c895a5df852ca9bbac1dee413747303a61aa4ebd Author: Greg Donald <gdonald@gmail.com> Date: Tue Sep 16 18:37:41 2014 -0500 drivers: staging: rtl8723au: Fix "space required after that ','" errors Fix checkpatch.pl "space required after that ','" errors Signed-off-by: Greg Donald <gdonald@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit f78c0710cd60cd108d436490955909983f309c62 Author: Kieron Browne <kieron.browne@gmail.com> Date: Tue Sep 16 23:28:09 2014 +0100 staging: rtl8723au: fix sparse incorrect type assignment warnings Use cpu_to_le16 to cast int for assignment to __le16 members Signed-off-by: Kieron Browne <kieron.browne@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit adabff85c9486c09ec700d835328e18ccfc9abf0 Author: MihaelaGaman <mp.gaman@gmail.com> Date: Sun Sep 14 12:56:43 2014 +0300 staging: rtl8723au: Fix checkpatch errors Fix checkpatch.pl "spaces required around": >, =, =, =, =, +=, >, >, <, <, :, < errors. Signed-off-by: MihaelaGaman <mp.gaman@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 1703c17b8a02b7d1dd3080c4ce9d41a83e95a071 Author: Vaishali Thakkar <vthakkar1994@gmail.com> Date: Sun Sep 14 13:46:37 2014 +0530 Staging: rtl8188eu: os_dep: Compression of lines for immediate return This patch compresses two lines in to a single line in file rtw_android.c if immediate return statement is found. It also removes variable bytes_written as it is no longer needed. It is done using script Coccinelle. And coccinelle uses following semantic patch for this compression function: @@ expression ret; identifier f; @@ -ret = +return f(...); -return ret; Signed-off-by: Vaishali Thakkar<vthakkar1994@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 16e614e85025d69c87e9ce80b9e1b5238f0f4479 Author: Gulsah Kose <gulsah.1004@gmail.com> Date: Sun Sep 21 00:13:29 2014 +0300 staging: rtl8188eu: core: Fixed wrong space error. This patch fixes "foo * bar" should be "foo *bar" checkpatch.pl error in rtw_cmd.c Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 69869c01ff148ef22d0ea1adec27b4543789792b Author: Catalina Mocanu <catalina.mocanu@gmail.com> Date: Fri Sep 19 14:54:54 2014 -0700 staging: iio: impedance-analyzer: add blank line after declaration This fixes the following checkpatch.pl warning: WARNING: Missing a blank line after declarations. Signed-off-by: Catalina Mocanu <catalina.mocanu@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 714ab9bdd350413f48ad401bd25e11b3e9f257ab Author: Catalina Mocanu <catalina.mocanu@gmail.com> Date: Fri Sep 19 14:32:09 2014 -0700 staging: iio: trigger: add blank lines after declarations This fixes the following checkpatch.pl warning: WARNING: Missing a blank line after declarations. Signed-off-by: Catalina Mocanu <catalina.mocanu@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 8a689c114796d8a3801c2bf3e25d3e21d6816036 Author: Aybuke Ozdemir <aybuke.147@gmail.com> Date: Fri Sep 19 18:48:05 2014 +0300 Staging: iio: resolver: Missing a blank line after declarations This patch fixes these warning messages found by checkpatch.pl: WARNING : Missing a blank line after declarations Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 4b4c727519b510ab9d9b33de51ea41fc34b9ef27 Author: Catalina Mocanu <catalina.mocanu@gmail.com> Date: Thu Sep 18 14:55:06 2014 -0700 staging: iio: dummy: add blank lines after declarations. This fixes the following checkpatch.pl warning: WARNING: Missing a blank line after declarations. Signed-off-by: Catalina Mocanu <catalina.mocanu@gmail.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit b581c3d9a90772613e05e659b4e8defc81704212 Author: Tina Johnson <tinajohnson.1234@gmail.com> Date: Sat Sep 13 15:46:15 2014 +0530 Staging: iio: meter: ade7753: Fixed checkpatch.pl warnings Clean-up patch to fix the following checkpatch.pl warnings: ade7753.c:325: WARNING: Missing a blank line after declarations ade7753.c:383: WARNING: Missing a blank line after declarations Signed-off-by: Tina Johnson<tinajohnson.1234@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 9034720a54738bbaf96b619f34f887199ac7efed Author: Tina Johnson <tinajohnson.1234@gmail.com> Date: Sun Sep 14 16:30:05 2014 +0530 Staging: iio: meter: ade7753: Merged assignment with immediately following return statement Saved one line of code by merging the assigning and return statements of variable ret. And thus removed variable len which was no longer useful. This patch was done using Coccinelle script and the following semantic patch was used: @@ expression ret; identifier f; @@ -ret = +return f(...); -return ret; Signed-off-by: Tina Johnson <tinajohnson.1234@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Acked-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 18f340f90e087c078c634d5c4fed5e0d632d4fb6 Author: Paul Zimmerman <Paul.Zimmerman@synopsys.com> Date: Fri Sep 19 14:49:36 2014 -0700 usb: dwc2: add T: line to MAINTAINERS showing Felipe's tree Starting with v3.18-rc, patches for dwc2 will go through Felipe's tree. Add a T: line to MAINTAINERS to document this. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 5dce95554a1866339de039060ecd7122056a9d71 Author: Paul Zimmerman <Paul.Zimmerman@synopsys.com> Date: Tue Sep 16 13:47:27 2014 -0700 usb: dwc2: handle DMA buffer unmapping sanely The driver's handling of DMA buffers for non-aligned transfers was kind of nuts. For IN transfers, it left the URB DMA buffer mapped until the transfer completed, then synced it, copied the data from the bounce buffer, then synced it again. Instead of that, just call usb_hcd_unmap_urb_for_dma() to unmap the buffer before starting the transfer. Then no syncing is required when doing the copy. This should also allow handling of other types of mappings besides just dma_map_single() ones. Also reduce the size of the bounce buffer allocation for Isoc endpoints to 3K, since that's the largest possible transfer size. Tested on Raspberry Pi and Altera SOCFPGA. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit e8f8c14d9da7ab1b8a7b0f769cd7148ca2cc7d10 Author: Paul Zimmerman <Paul.Zimmerman@synopsys.com> Date: Tue Sep 16 13:47:26 2014 -0700 usb: dwc2: clip max_transfer_size to 65535 Clip max_transfer_size to 65535 for host. dwc2_hc_setup_align_buf() allocates coherent buffers with this size, and if it's too large we can exhaust the coherent DMA pool. Tested on Raspberry Pi and Altera SOCFPGA. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit d00b41428042e72d9dc2557d9147434a4e3d631f Author: Robert Baldyga <r.baldyga@samsung.com> Date: Tue Sep 9 10:44:57 2014 +0200 usb: dwc2/gadget: disable clock when it's not needed When device is stopped or suspended clock is not needed so we can disable it for this time. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit b203d0a2e32dd28e87780078f0789322862e4da8 Author: Robert Baldyga <r.baldyga@samsung.com> Date: Tue Sep 9 10:44:56 2014 +0200 usb: dwc2/gadget: assign TX FIFO dynamically Because we have not enough memory to have each TX FIFO of size at least 3072 bytes (the maximum single packet size with 3 transactions per microframe), we create four FIFOs of lenght 1024, and four of length 3072 bytes, and assing them to endpoints dynamically according to maxpacket size value of given endpoint. Up to now there were initialized 16 TX FIFOs, but we use only 8 IN endpoints, so we can split available memory for 8 FIFOs to have more memory for each one. It needed to do some small modifications in few places in code, because there was assumption that TX FIFO numbers assigned to endpoints are the same as the endpoint numbers, which is not true since we have dynamic FIFO assigning. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit cff9eb756e18a7763d7ab9c574c0ab191e712341 Author: Marek Szyprowski <m.szyprowski@samsung.com> Date: Tue Sep 9 10:44:55 2014 +0200 usb: dwc2/gadget: ensure that all fifos have correct memory buffers Print warning if FIFOs are configured in such a way that they don't fit into the SPRAM available on the s3c hsotg module. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 1e01129373f757925a652ea4ea5b278f8c2b9222 Author: Marek Szyprowski <m.szyprowski@samsung.com> Date: Tue Sep 9 10:44:54 2014 +0200 usb: dwc2/gadget: hide some not really needed debug messages Some DWC2/s3c-hsotg debug messages are really useless for typical user, so hide them behind dev_dbg(). Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit d784f1e50977e58db23a79181971c3c0f62452e5 Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Date: Tue Sep 9 10:44:53 2014 +0200 usb: dwc2/gadget: Fix comment text Adjust the debug text to the name of the printed variable. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 496a51bd64eb15f14cee3519f5b75b28d09567e3 Author: Julia Lawall <Julia.Lawall@lip6.fr> Date: Thu Sep 18 22:24:02 2014 +0200 staging: lustre: llite: Use kzalloc and rewrite null tests This patch removes some kzalloc-related macros and rewrites the associated null tests to use !x rather than x == NULL. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression ptr; statement S,S1; @@ $OBD_ALLOC\|OBD_ALLOC_WAIT\|OBD_ALLOC_PTR\|OBD_ALLOC_PTR_WAIT$(ptr,...); if ( + ! ptr - == NULL ) S else S1 @@ expression ptr,size; @@ - OBD_ALLOC(ptr,size) + ptr = kzalloc(size, GFP_NOFS) @@ expression ptr,size; @@ - OBD_ALLOC_WAIT(ptr,size) + ptr = kzalloc(size, GFP_KERNEL) @@ expression ptr,size; @@ - OBD_ALLOC_PTR(ptr) + ptr = kzalloc(sizeof(*ptr), GFP_NOFS) @@ expression ptr,size; @@ - OBD_ALLOC_PTR_WAIT(ptr,size) + ptr = kzalloc(sizeof(*ptr), GFP_KERNEL) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit cdbcd3305293d18f7ae73b2766699bddf634bb06 Author: Martin Kelly <martin@martingkelly.com> Date: Mon Sep 15 21:16:15 2014 -0700 Staging/bcm: Fix whitespace/comments in Ioctl.h Cleanup whitespace and comments in Ioctl.h in a few ways: - > 80 character cleanup - Comment clarification - More consistent vertical alignment Signed-off-by: Martin Kelly <martkell@amazon.com> Reviewed-by: Matthias Beyer <mail@beyermatthias.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 33b443e467f6c92c4cc797f5acf6a933fcfe9ec3 Author: Fabien Malfoy <fabien.malfoy@laposte.net> Date: Mon Sep 15 09:02:36 2014 +0200 staging: rtl8821ae: Remove space after unary operator in efuse.c Several pointer declaration syntax have been fixed to match the coding style. Signed-off-by: Fabien Malfoy <fabien.malfoy@laposte.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit c24cdca05edb9c5435529afa37ce8c9c25ac4c5e Author: Merlin Chlosta <eudyptula@merlin.geekmail.org> Date: Mon Sep 15 01:56:10 2014 +0200 staging: rtl8192u: sparse warnings: declare ieee80211_TURBO_Info static Declare ieee80211_TURBO_Info static to fix a sparse "symbol was not declared" warning. Signed-off-by: Merlin Chlosta <eudyptula@merlin.geekmail.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 5b1ebbffc0b2dd47a45380ba68da36f792a2977e Author: Vincenzo Scotti <vinc94@gmail.com> Date: Sat Sep 13 13:39:20 2014 +0200 staging: emxx_udc: fix compile warnings: discarding const qualifier Signed-off-by: Vincenzo Scotti <vinc94@gmail.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit f02935c575cb00f2a164282866324816a1f52fc1 Author: Masanari Iida <standby24x7@gmail.com> Date: Sat Sep 13 01:14:30 2014 +0900 staging: exxx_udc: Convert pr_warning to pr_warn This patch Convert pr_warning to pr_warn. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 3aa2ec581903747d926765850212278c7c24be77 Author: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Date: Fri Sep 12 17:57:26 2014 +0530 staging: unisys: uislib: uislib.c: sparse warning of context imbalance fixed sparse warning : context imbalance in 'destroy_device' unexpected unlock this patch will generate warning from checkpatch for lines over 80 character , but since those are user-visible strings so it was not modified. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Tested-by: Benjamin Romer <benjamin.romer@unisys.com> Acked-by: Benjamin Romer <benjamin.romer@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 635ecc5f36438cdf8cf3b88421321ee7443eb2d1 Author: Luke Hart <luke.hart@birchleys.eu> Date: Fri Sep 12 10:48:33 2014 +0100 staging: unisys: Fix sparse error - accessing __iomem directly Copy the channel type into a temporary buffer so that code will work for architectures that don't support MMIO. This now works in same way as other tests in same function. Signed-off-by: Luke Hart <luke.hart@birchleys.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit cec78b98df2f87a396890c802dccbf0e604c6829 Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:05 2014 +0100 staging: et131x: logical continuations should be on the previous line Fix two occurrences of the checkpatch check: CHECK: Logical continuations should be on the previous line Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit d855b8935e211b285aa6eb3d42e2ea810b03e043 Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:04 2014 +0100 staging: et131x: Fix 'else is not generally useful after a break or return' Fix this checkpatch warning: WARNING: else is not generally useful after a break or return Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit b6cb966074d6863293b774327ca5738bb27a9b3a Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:08 2014 +0100 staging: et131x: Use variable names instead of types in sizeof A few calls to sizeof() in et131x.c give the type as a parameter - use the equivalent variable name instead. Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit ee60c8ec323167a02de357e9d9b44af850052ee3 Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:07 2014 +0100 staging: et131x: Use braces on all arms of if/else statements In some places in et131x.c, one arm of am if/else statement has braces and the other not - put braces on both arms where this happens. Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit c13756784a6a16fb5d25585a4058dd6d284fd033 Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:06 2014 +0100 staging: et131x: Remove spaces after casts In three places in et131x.c, spaces exist after a cast. Remove them. Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 48c8f78914720b39b9de27c6e58134abdf1f1a4c Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:02 2014 +0100 staging: et131x: Add spinlock definition comments Checkpatch --strict advises that spinlocks should be described when defined, seems a good idea so this change does that. Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit 0c55fe2018f7f84e3620e85e4b0d5d06274862da Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:01 2014 +0100 staging: et131x: Remove useless assignment to NULL The stack variable skb is no longer used after it's set to NULL. Don't set it to NULL. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit bacb71edb48050b46244a66ec8d49c55a89eec34 Author: Mark Einon <mark.einon@gmail.com> Date: Sun Sep 14 16:59:00 2014 +0100 staging: et131x: Remove send_hw_lock spinlock We don't need to use this lock - the tx path is protected by the networking subsystem xmit_lock, so we don't also need it in nic_send_packet(). The other use of this spinlock in et1310_enable_phy_coma() t…

GIT 2cf50762577a191f2f646e4034cc21f4764d90ab commit 68c7ed167ef564c83a0022f2d0fe15cbdac0c5a4 Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:04 2014 +1000 Documentation: disable vdso_test to avoid breakage with old glibc glibc versions older than 2.16 don't include sys/auxv.h which this executable uses. Since we don't have a good way to test for specific glibc versions in kbuild, just disable it for now. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit 03979f1100aca61cf16ac7f3e464d7f11747e86b Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:04 2014 +1000 Documentation: update vDSO makefile to build portable examples Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit 13770826a9872de445703ee6c05b44f525f78513 Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:04 2014 +1000 Documentation: update .gitignore files Add some missing files to .gitignore. Push Documentation/.gitignore down into subdirectories. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit ce0f3b2691c066255fcf25c77e929ff8cda73417 Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: support glibc versions without htole macros glibc 2.9 introduced the htole<16/32/64> macros, add them to tools/include to support older versions of glibc. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit 77cb6d96708f5b681969ce144057ae1ebda96057 Author: Mark Brown <broonie@kernel.org> Date: Thu Sep 25 10:34:03 2014 +1000 v4l2-pci-skeleton: Only build if PCI is available Currently arm64 does not support PCI but it does support v4l2. Since the PCI skeleton driver is built unconditionally as a module with no dependency on PCI this causes build failures for arm64 allmodconfig. Fix this by defining a symbol VIDEO_PCI_SKELETON for the skeleton and conditionalising the build on that. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> [added VIDEO dependencies] commit 112a45ca901ced590ff71c5fd7d717f8771717ce Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: fix misc. warnings Fix a few warnings that gcc emits during a default build. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit b0fc375fe2c09477b5effc8e030668203d24c897 Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: make functions static to avoid prototype warnings Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit 593ed472bcea93949c72ddc45e340fee47a05aa3 Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: add makefiles for more targets Add a bunch of previously unbuilt source files to the Documentation build machinery. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit cc67d673f252264535cef654c37c8dd621340e8b Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:02 2014 +1000 Documentation: use subdir-y to avoid unnecessary built-in.o files Change the Documentation makefiles from obj-m to subdir-y to avoid generating unnecessary built-in.o files since nothing in Documentation/ is ever linked in to vmlinux. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit bb69afeca345380203c89d2f19e95eca786b5a4c Author: Peter Foley <pefoley2@pefoley.com> Date: Thu Sep 25 10:34:02 2014 +1000 Documentation: remove networking/.gitignore Remove empty networking/.gitignore Signed-off-by: Peter Foley <pefoley2@pefoley.com> Cc: rdunlap@infradead.org Cc: linux-doc@vger.kernel.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> commit 4d96fb1ec81118c6406fe6d3670f172b2faaedf3 Author: Heiko Stuebner <heiko.stuebner@bq.com> Date: Tue Sep 23 22:42:16 2014 +0200 power: gpio-charger: do not use gpio value directly Some gpio implementations return interesting values for gpio_get_value when the value is not 0 - as seen on a imx6sl board. Therefore do not use the value returned from gpio_get_value directly but simply check for 0 or not 0. Signed-off-by: Heiko Stuebner <heiko.stuebner@bq.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit ddd26dff757d08d4eb309a28bf2a02372387e71f Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Tue Sep 16 18:10:41 2014 +0200 power: max8925: Use of_get_child_by_name Use of_get_child_by_name to obtain reference to charger node instead of of_find_node_by_name which can walk outside of the parent node. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit 920ac5be91bc447c5ef82f457207a169aa79c5f6 Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Tue Sep 16 18:10:40 2014 +0200 power: max8925: Fix NULL ptr dereference on memory allocation failure Check the return value of devm_kzalloc() to fix possible NULL pointer dereference and properly exit the probe() on memory allocation failure. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit 628ef02c56e515430dd8d8439126dd0ecb8ce8bb Author: Puthikorn Voravootivat <puthik@chromium.org> Date: Tue Sep 9 12:20:35 2014 -0700 bq27x00_battery: Add support to bq27742 Add support to bq27742 in bq27x00 driver. bq27742 register addresses are mostly mostly the same as bq27500 addresses with minor differences. Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-by: Rhyland Klein <rklein@nvidia.com> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit 042e1c79166b9250edd8262bea84e1703f27ad2e Author: Jin Yao <yao.jin@linux.intel.com> Date: Mon Sep 22 10:31:14 2014 -0700 Input: soc_button_array - convert to platform bus ACPI device enumeration mechanism changed a lot since 3.16-rc1. ACPI device objects with _HID will be enumerated to platform bus by default. For the existing PNP drivers that probe the PNPACPI devices, the device ids are listed explicitly in drivers/acpi/acpi_pnp.c. But ACPI folks will continue their effort on shrinking this id list by converting the PNP drivers to platform drivers, for the devices that don't belong to PNP bus in nature. Signed-off-by: Jin Yao <yao.jin@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> commit 3049683eafdbbbd7350b0e5ca02a2d8c026a3362 Author: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Date: Wed Sep 24 16:00:33 2014 -0700 Input: i8042 - fix Asus X450LCP touchpad detection We need to add this module to the nomux table to be able to detect the touchpad. Cc: stablevger.kernel.org Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> commit 3f3d0463636e38a27c3000d59889b8bdc9072ce1 Author: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Date: Thu Sep 25 08:23:26 2014 +0900 ARM: dts: Remove display timings node from exynos5250-snow Commit a3d72cad63ed ("ARM: dts: Clean up exynos5250-snow") improved the Snow DTS but the patch was rebased due conflicting changes and the merge resolution added a device node removed by commit a98c3c23868f ("ARM: dts: update display related nodes for exynos5250-snow"). This patch removes the node again to keep the DTS as before. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> commit dd12ac7fb3988be113465f499ad91b30b8aa4bdd Author: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Date: Thu Sep 25 08:21:25 2014 +0900 ARM: dts: Fix chip select GPIO on exynos5250-smdk5250 Commit 65bbe3fee0e1 ("ARM: dts: Clean up exynos5250-smdk5250") improved the smdk5250 DTS but the patch was rebased due conflicting changes and the merge resolution added a regression of the bug fixed in commit e138d4333aa0 ("ARM: dts: fix the chip select gpios definition in the SPI nodes"). This patch fixes the issue by removing the old cs-gpio and using the generic cs-gpios property. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> commit 5c4dd348af35a6f6db97b4f2401f74c71f7f3c7d Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Date: Thu Sep 25 00:53:44 2014 +0200 Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" Revert commit 6efde38f0769 (PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()) that introduced a NULL pointer dereference during system resume from hibernation: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 PGD b39c2067 PUD b39c1067 PMD 0 Oops: 0000 [#1] SMP Modules linked in: <irrelevant list of modules> CPU: 1 PID: 4898 Comm: s2disk Tainted: G C 3.17-rc5-amd64 #1 Debian 3.17~rc5-1~exp1 Hardware name: LENOVO 2776LEG/2776LEG, BIOS 6EET55WW (3.15 ) 12/19/2011 task: ffff88023155ea40 ti: ffff8800b3b14000 task.ti: ffff8800b3b14000 RIP: 0010:[<ffffffff810a8cc1>] [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 RSP: 0018:ffff8800b3b17ea8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8800b39bab00 RCX: 0000000000000001 RDX: ffff8800b39bab10 RSI: ffff8800b39bab00 RDI: 0000000000000000 RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8800b39bab10 R11: 0000000000000246 R12: ffffea0000000000 R13: ffff880232f485a0 R14: ffff88023ac27cd8 R15: ffff880232927590 FS: 00007f406d83b700(0000) GS:ffff88023bc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 00000000b3a62000 CR4: 00000000000007e0 Stack: ffff8800b39bab00 0000000000000010 ffff880232927590 ffffffff810acb4a ffff8800b39bab00 ffffffff811a955a ffff8800b39bab10 0000000000000000 ffff88023155f098 ffffffff81a6b8c0 ffff88023155ea40 0000000000000007 Call Trace: [<ffffffff810acb4a>] ? snapshot_release+0x2a/0xb0 [<ffffffff811a955a>] ? __fput+0xca/0x1d0 [<ffffffff81080627>] ? task_work_run+0x97/0xd0 [<ffffffff81012d89>] ? do_notify_resume+0x69/0xa0 [<ffffffff8151452a>] ? int_signal+0x12/0x17 Code: 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 41 54 48 8b 05 ba 62 9c 00 49 bc 00 00 00 00 00 ea ff ff 48 8b 3d a1 62 9c 00 55 53 <48> 8b 10 48 89 50 18 48 8b 52 20 48 c7 40 28 00 00 00 00 c7 40 RIP [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 RSP <ffff8800b3b17ea8> CR2: 0000000000000000 ---[ end trace f02be86a1ec0cccb ]--- due to forbidden_pages_map being NULL in swsusp_free(). Fixes: 6efde38f0769 "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" Reported-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> commit a928f97152ea39c31f8ea89b60dd30a169d4ed6e Author: Peter Hüwe <PeterHuewe@gmx.de> Date: Fri Sep 12 21:09:47 2014 +0200 i2c: acpi: Fix NULL Pointer dereference If adapter->dev.parent == NULL there is a NULL pointer dereference in acpi_i2c_install_space_handler and acpi_i2c_remove_space_handler. This is present since introduction of this code: 366047515c6e "i2c: rework kernel config I2C_ACPI" or even da3c6647ee08 "I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI" The adapter->dev.parent == NULL case is valid for the i2c_stub, so loading i2c_stub with ACPI_I2C_OPREGION enabled results in an oops. This is also valid at least for i2c_tiny_usb and i2c_robotfuzz_osif. Fix by checking whether it is null before calling ACPI_HANDLE. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> commit c15d821ddb9dac9ac6b5beb75bf942f3bc3a4004 Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Date: Tue Sep 23 10:35:54 2014 +0800 gpio / ACPI: Use pin index and bit length Fix code when the operation region callback is for an gpio, which is not at index 0 and for partial pins in a GPIO definition. For example: Name (GMOD, ResourceTemplate () { //3 Outputs that define the Power mode of the device GpioIo (Exclusive, PullDown, , , , "\\_SB.GPI2") {10, 11, 12} }) } If opregion callback calls is for: - Set pin 10, then address = 0 and bit length = 1 - Set pin 11, then address = 1 and bit length = 1 - Set for both pin 11 and pin 12, then address = 1, bit length = 2 This change requires updated ACPICA gpio operation handler code to send the pin index and bit length. Fixes: 473ed7be0da0 (gpio / ACPI: Add support for ACPI GPIO operation regions) Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: 3.15+ <stable@vger.kernel.org> # 3.15+: 75ec6e55f138 ACPICA: Update to GPIO region handler interface. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> commit 75ec6e55f1384548311a13ce4fcb39c516053314 Author: Bob Moore <Robert.Moore@intel.com> Date: Tue Sep 23 10:35:47 2014 +0800 ACPICA: Update to GPIO region handler interface. Changes to correct several GPIO issues: 1) The update_rule in a GPIO field definition is now ignored; a read-modify-write operation is never performed for GPIO fields. (Internally, this means that the field assembly/disassembly code is completely bypassed for GPIO.) 2) The Address parameter passed to a GPIO region handler is now the bit offset of the field from a previous Connection() operator. Thus, it becomes a "Pin Number Index" into the Connection() resource descriptor. 3) The bit_width parameter passed to a GPIO region handler is now the exact bit width of the GPIO field. Thus, it can be interpreted as "number of pins". Overall, we can now say that the region handler interface to GPIO handlers is a raw "bit/pin" addressed interface, not a byte-addressed interface like the system_memory handler interface. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Cc: 3.15+ <stable@vger.kernel.org> # 3.15+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> commit 457920817e645a7dee42c2a75c81c5ed8e12ee1c Author: Fu Zhonghui <zhonghui.fu@linux.intel.com> Date: Wed Sep 24 22:42:26 2014 +0200 ACPI / platform / LPSS: disable async suspend/resume of LPSS devices On some systems (Asus T100 in particular) there are strict ordering dependencies between LPSS devices with respect to power management that break if they suspend/resume asynchronously. In theory it should be possible to follow those dependencies in the async suspend/resume case too (the ACPI tables tell as that the dependencies are there), but since we're missing infrastructure for that at the moment, disable async suspend/resume for all of the LPSS devices for the time being. Link: http://marc.info/?l=linux-acpi&m=141158962321905&w=2 Fixes: 8ce62f85a81f (ACPI / platform / LPSS: Enable async suspend/resume of LPSS devices) Signed-off-by: Li Aubrey <aubrey.li@linux.intel.com> Signed-off-by: Fu Zhonghui <zhonghui.fu@linux.intel.com> Cc: 3.16+ <stable@vger.kernel.org> # 3.16+ [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> commit c7da579763f29cf45a861ad4c339aba590d8b80d Author: Johan Hedberg <johan.hedberg@intel.com> Date: Wed Sep 24 22:41:46 2014 +0300 Bluetooth: Add retransmission effort into SCO parameter table It is expected that new parameter combinations will have the retransmission effort value different between some entries (mainly because of the new S4 configuration added by HFP 1.7), so it makes sense to move it into the table instead of having it hard coded based on the selected SCO_AIRMODE_*. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> commit b2fc3f3c6d397d434174147eca3db1ec778195ce Author: Olof Johansson <olof@lixom.net> Date: Wed Sep 24 11:42:38 2014 -0700 drivers/soc: ti: fix build break with modules Fixes below build break by not switching to stubs when the driver is a module: drivers/soc/ti/knav_dma.c:418:7: error: redefinition of 'knav_dma_open_channel' void *knav_dma_open_channel(struct device *dev, const char *name, ^ In file included from drivers/soc/ti/knav_dma.c:26:0: include/linux/soc/ti/knav_dma.h:165:21: note: previous definition of 'knav_dma_open_channel' was here static inline void *knav_dma_open_channel(struct device *dev, const char *name, ^ Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 2d9251e3501356ceb44444a8f9a393b57163dc6a Author: Matthias Brugger <matthias.bgg@gmail.com> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: multi_v7_defconfig: Enable Mediatek platform Enable Mediatek platform support for multi_v7_defconfig. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit d66820853251e8a9b53125a95a773e482cd79136 Author: Matthias Brugger <matthias.bgg@gmail.com> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: mediatek: Add earlyprintk support for mt6589 Enable low-level debug for Mediatek mt6589 SoC on UART0. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 7e9b2828f25ec156623da0c2156604066de5514d Author: Matthias Brugger <matthias.bgg@gmail.com> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mt6589: Change compatible string for GIC This patch changes the compatible string of the GIC to the new "arm,cortex-a7-gic" which does reflect the actual hardware. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 6e9cb2633698ddadd2493b3793dbc9723f570538 Author: Matthias Brugger <matthias.bgg@gmail.com> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mediatek: Add compatible property for aquaris5 Add the missing 'compatible' property to device tree root node of - mt6589-aquaris5.dts and document the new values. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit d82df11466df3e0934c7e7aa2f5e08c284e1fd9d Author: Matthias Brugger <matthias.bgg@gmail.com> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mt6589-aquaris5: Add boot argument earlyprintk Add boot argument for earlyprintk to the aquaris5 device tree file. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 510f1d72e526e776243397142cbcd459dd2a2efa Author: Matthias Brugger <matthias.bgg@gmail.com> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mt6589: Fix typo in GIC unit address This changes the unit address of the gic node to it's first register area. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 995425883e4087a4bfd61d12e442089d1201fc5c Author: Matthias Brugger <matthias.bgg@gmail.com> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: Build dtb for Mediatek board This allows the "make dtbs" to build the aquaris5 dtb for the Mediatek SoC. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 00e978180b1fa211c30642139149ea448ff06c55 Author: Pawel Moll <pawel.moll@arm.com> Date: Mon Sep 15 15:33:48 2014 +0100 bus: arm-ccn: Fix spurious warning message Because CCN's cycle counter always runs, it will generate an interrupt on overflow even if the relevant perf event was not requested, causing a spurious warning message. Fixed now by warning on only normal counter unwanted overflows. Also cleaning the overflow mask at init now, not to warn on event previously requested by firmware. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 94e57fea62020dbf6e5d0093eabcd28366e86044 Author: Francesco Ruggeri <fruggeri@arista.com> Date: Wed Sep 24 10:12:41 2014 -0700 PCI: Move PCI_VENDOR_ID_VMWARE to pci_ids.h Move PCI_VENDOR_ID_VMWARE from device-specific files to pci_ids.h. It is useful to always have access to it, especially when accessing subsystem_vendor_id on emulated devices. [bhelgaas: keep pci_ids.h sorted and use lower-case hex] Signed-off-by: Francesco Ruggeri <fruggeri@arista.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 17497acbdce9506fd6a75115dee4ab80c3cc5ee5 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:50 2014 -0400 blk-mq, percpu_ref: start q->mq_usage_counter in atomic mode blk-mq uses percpu_ref for its usage counter which tracks the number of in-flight commands and used to synchronously drain the queue on freeze. percpu_ref shutdown takes measureable wallclock time as it involves a sched RCU grace period. This means that draining a blk-mq takes measureable wallclock time. One would think that this shouldn't matter as queue shutdown should be a rare event which takes place asynchronously w.r.t. userland. Unfortunately, SCSI probing involves synchronously setting up and then tearing down a lot of request_queues back-to-back for non-existent LUNs. This means that SCSI probing may take above ten seconds when scsi-mq is used. [ 0.949892] scsi host0: Virtio SCSI HBA [ 1.007864] scsi 0:0:0:0: Direct-Access QEMU QEMU HARDDISK 1.1. PQ: 0 ANSI: 5 [ 1.021299] scsi 0:0:1:0: Direct-Access QEMU QEMU HARDDISK 1.1. PQ: 0 ANSI: 5 [ 1.520356] tsc: Refined TSC clocksource calibration: 2491.910 MHz <stall> [ 16.186549] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 16.190478] sd 0:0:1:0: Attached scsi generic sg1 type 0 [ 16.194099] osd: LOADED open-osd 0.2.1 [ 16.203202] sd 0:0:0:0: [sda] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB) [ 16.208478] sd 0:0:0:0: [sda] Write Protect is off [ 16.211439] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 16.218771] sd 0:0:1:0: [sdb] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB) [ 16.223264] sd 0:0:1:0: [sdb] Write Protect is off [ 16.225682] sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA This is also the reason why request_queues start in bypass mode which is ended on blk_register_queue() as shutting down a fully functional queue also involves a RCU grace period and the queues for non-existent SCSI devices never reach registration. blk-mq basically needs to do the same thing - start the mq in a degraded mode which is faster to shut down and then make it fully functional only after the queue reaches registration. percpu_ref recently grew facilities to force atomic operation until explicitly switched to percpu mode, which can be used for this purpose. This patch makes blk-mq initialize q->mq_usage_counter in atomic mode and switch it to percpu mode only once blk_register_queue() is reached. Note that this issue was previously worked around by 0a30288da1ae ("blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe") for v3.17. The temp fix was reverted in preparation of adding persistent atomic mode to percpu_ref by 9eca80461a45 ("Revert "blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe""). This patch and the prerequisite percpu_ref changes will be merged during v3.18 devel cycle. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Christoph Hellwig <hch@infradead.org> Link: http://lkml.kernel.org/g/20140919113815.GA10791@lst.de Fixes: add703fda981 ("blk-mq: use percpu_ref for mq usage count") Reviewed-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Johannes Weiner <hannes@cmpxchg.org> commit e4de4d412fc0d07f820906dcd70ede06dad312e2 Author: Olof Johansson <olof@lixom.net> Date: Wed Sep 24 10:34:06 2014 -0700 ARM: at91: Fix bad conflict resolution in board-dt-sama5.c Signed-off-by: Olof Johansson <olof@lixom.net> commit 3c9703a87bdda1fef221ab0957a3ec2a2126f129 Author: Olof Johansson <olof@lixom.net> Date: Wed Sep 24 10:32:20 2014 -0700 Revert "ARM: make arrays containing machine compatible strings const" I dropped it from next/cleanup, doing a revert on for-next instead of rebuilding the branch. This reverts commit fbce9bc876ab2c905f1f82a78bc25745e98760d9. commit 1cae13e75b7a7848c03138636d4eb8d8a5054dd5 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:50 2014 -0400 percpu_ref: make INIT_ATOMIC and switch_to_atomic() sticky Currently, a percpu_ref which is initialized with PERPCU_REF_INIT_ATOMIC or switched to atomic mode via switch_to_atomic() automatically reverts to percpu mode on the first percpu_ref_reinit(). This makes the atomic mode difficult to use for cases where a percpu_ref is used as a persistent on/off switch which may be cycled multiple times. This patch makes such atomic state sticky so that it survives through kill/reinit cycles. After this patch, atomic state is cleared only by an explicit percpu_ref_switch_to_percpu() call. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Johannes Weiner <hannes@cmpxchg.org> commit 2aad2a86f6685c10360ec8a5a55eb9ab7059cb72 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:50 2014 -0400 percpu_ref: add PERCPU_REF_INIT_* flags With the recent addition of percpu_ref_reinit(), percpu_ref now can be used as a persistent switch which can be turned on and off repeatedly where turning off maps to killing the ref and waiting for it to drain; however, there currently isn't a way to initialize a percpu_ref in its off (killed and drained) state, which can be inconvenient for certain persistent switch use cases. Similarly, percpu_ref_switch_to_atomic/percpu() allow dynamic selection of operation mode; however, currently a newly initialized percpu_ref is always in percpu mode making it impossible to avoid the latency overhead of switching to atomic mode. This patch adds @flags to percpu_ref_init() and implements the following flags. * PERCPU_REF_INIT_ATOMIC : start ref in atomic mode * PERCPU_REF_INIT_DEAD : start ref killed and drained These flags should be able to serve the above two use cases. v2: target_core_tpg.c conversion was missing. Fixed. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Johannes Weiner <hannes@cmpxchg.org> commit f47ad45784611297b699f3dffb6c7222b76afe64 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:49 2014 -0400 percpu_ref: decouple switching to percpu mode and reinit percpu_ref has treated the dropping of the base reference and switching to atomic mode as an integral operation; however, there's nothing inherent tying the two together. The use cases for percpu_ref have been expanding continuously. While the current init/kill/reinit/exit model can cover a lot, the coupling of kill/reinit with atomic/percpu mode switching is turning out to be too restrictive for use cases where many percpu_refs are created and destroyed back-to-back with only some of them reaching extended operation. The coupling also makes implementing always-atomic debug mode difficult. This patch separates out percpu mode switching into percpu_ref_switch_to_percpu() and reimplements percpu_ref_reinit() on top of it. * DEAD still requires ATOMIC. A dead ref can't be switched to percpu mode w/o going through reinit. v2: __percpu_ref_switch_to_percpu() was missing static. Fixed. Reported by Fengguang aka kbuild test robot. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: kbuild test robot <fengguang.wu@intel.com> commit 490c79a65708873228cf114cf00e32c204e4e907 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:49 2014 -0400 percpu_ref: decouple switching to atomic mode and killing percpu_ref has treated the dropping of the base reference and switching to atomic mode as an integral operation; however, there's nothing inherent tying the two together. The use cases for percpu_ref have been expanding continuously. While the current init/kill/reinit/exit model can cover a lot, the coupling of kill/reinit with atomic/percpu mode switching is turning out to be too restrictive for use cases where many percpu_refs are created and destroyed back-to-back with only some of them reaching extended operation. The coupling also makes implementing always-atomic debug mode difficult. This patch separates out atomic mode switching into percpu_ref_switch_to_atomic() and reimplements percpu_ref_kill_and_confirm() on top of it. * The handling of __PERCPU_REF_ATOMIC and __PERCPU_REF_DEAD is now differentiated. Among get/put operations, percpu_ref_tryget_live() is the only one which cares about DEAD. * percpu_ref_switch_to_atomic() can be called multiple times on the same ref. This means that multiple @confirm_switch may get queued up which we can't do reliably without extra memory area. This is handled by making the later invocation synchronously wait for the completion of the previous one. This isn't particularly desirable but such synchronous waits shouldn't happen in most cases. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Johannes Weiner <hannes@cmpxchg.org> commit 27344a9017cdaff82a167827da3001a0918afdc3 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:49 2014 -0400 percpu_ref: add PCPU_REF_DEAD percpu_ref will be restructured so that percpu/atomic mode switching and reference killing are dedoupled. In preparation, add PCPU_REF_DEAD and PCPU_REF_ATOMIC_DEAD which is OR of ATOMIC and DEAD. For now, ATOMIC and DEAD are changed together and all PCPU_REF_ATOMIC uses are converted to PCPU_REF_ATOMIC_DEAD without causing any behavior changes. percpu_ref_init() now specifies an explicit alignment when allocating the percpu counters so that the pointer has enough unused low bits to accomodate the flags. Note that one flag was fine as min alignment for percpu memory is 2 bytes but two flags are already too many for the natural alignment of unsigned longs on archs like cris and m68k. v2: The original patch had BUILD_BUG_ON() which triggers if unsigned long's alignment isn't enough to accomodate the flags, which triggered on cris and m64k. percpu_ref_init() updated to specify the required alignment explicitly. Reported by Fengguang. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> Cc: kbuild test robot <fengguang.wu@intel.com> commit 9e804d1f58da1eca079f796347c1cf1d1df564e2 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: rename things to prepare for decoupling percpu/atomic mode switch percpu_ref will be restructured so that percpu/atomic mode switching and reference killing are dedoupled. In preparation, do the following renames. * percpu_ref->confirm_kill -> percpu_ref->confirm_switch * __PERCPU_REF_DEAD -> __PERCPU_REF_ATOMIC * __percpu_ref_alive() -> __ref_is_percpu() This patch is pure rename and doesn't introduce any functional changes. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> commit eecc16ba9a49b05dd847a317af166a6728eb56ca Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: replace pcpu_ prefix with percpu_ percpu_ref uses pcpu_ prefix for internal stuff and percpu_ for externally visible ones. This is the same convention used in the percpu allocator implementation. It works fine there but percpu_ref doesn't have too much internal-only stuff and scattered usages of pcpu_ prefix are confusing than helpful. This patch replaces all pcpu_ prefixes with percpu_. This is pure rename and there's no functional change. Note that PCPU_REF_DEAD is renamed to __PERCPU_REF_DEAD to signify that the flag is internal. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> commit 6251f9976af7656b6970a8820153f356430f5de2 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: minor code and comment updates * Some comments became stale. Updated. * percpu_ref_tryget() unnecessarily initializes @ret. Removed. * A blank line removed from percpu_ref_kill_rcu(). * Explicit function name in a WARN format string replaced with __func__. * WARN_ON() in percpu_ref_reinit() converted to WARN_ON_ONCE(). Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> commit a2237370194484ee6aeeff04b617e4b14d178966 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: relocate percpu_ref_reinit() percpu_ref is gonna go through restructuring. Move percpu_ref_reinit() after percpu_ref_kill_and_confirm(). This will make later changes easier to follow and result in cleaner organization. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Kent Overstreet <kmo@daterainc.com> commit 1aafa57340c6d906a285d7823e0fe68696c1ae07 Author: Wei Xu <xuwei5@hisilicon.com> Date: Wed Sep 24 17:07:48 2014 +0800 ARM: hisi: Fix platmcpm compilation when ARMv6 is selected When compiling with "ARCH=arm" and "allmodconfig", with commit: 9cdc99919a95e8b54c1998b65bb1bfdabd47d27b [2/7] ARM: hisi: enable MCPM implementation we will get: /tmp/cc6DjYjT.s: Assembler messages: /tmp/cc6DjYjT.s:63: Error: selected processor does not support ARM mode `ubfx r1,r0,#8,#8' /tmp/cc6DjYjT.s:761: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:762: Error: selected processor does not support ARM mode `dsb ' /tmp/cc6DjYjT.s:769: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:775: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:776: Error: selected processor does not support ARM mode `dsb ' /tmp/cc6DjYjT.s:795: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:801: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:802: Error: selected processor does not support ARM mode `dsb ' Fix platmcpm compilation when ARMv6 is selected. Signed-off-by: Wei Xu <xuwei5@hisilicon.com> Signed-off-by: Olof Johansson <olof@lixom.net> commit 495aa2e1facebf770224c33aae2a01541889e54e Author: Liviu Dudau <Liviu.Dudau@arm.com> Date: Tue Sep 23 20:01:14 2014 +0100 arm64: Add architectural support for PCI Use the generic PCI domain and OF functions to provide support for PCI on arm64. [bhelgaas: Change comments to use generic PCI, not just PCIe. Nothing at this level is PCIe-specific.] Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> commit b766eafe68281a12169f9eb8c06fd80d2e7897d7 Author: Liviu Dudau <Liviu.Dudau@arm.com> Date: Tue Sep 23 20:01:13 2014 +0100 PCI: Add pci_remap_iospace() to map bus I/O resources Add pci_remap_iospace() to map bus I/O resources into the CPU virtual address space. Architectures with special needs may provide their own version, but most should be able to use this one. This function is useful for PCI host bridge drivers that need to map the PCI I/O resources into virtual memory space. [bhelgaas: phys_addr description, drop temporary "err" variable] Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> CC: Arnd Bergmann <arnd@arndb.de> commit 5a4f662d44116022e3378b32a1a79b718e110096 Author: Liviu Dudau <Liviu.Dudau@arm.com> Date: Tue Sep 23 20:01:12 2014 +0100 PCI: Assign unassigned bus resources in pci_scan_root_bus() If the firmware has not assigned all the bus resources and we are not just probing the PCI buses, it makes sense to assign the unassigned resources in pci_scan_root_bus(). Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Arnd Bergmann <arnd@arndb.de> CC: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> CC: Rob Herring <robh+dt@kernel.org> commit 07428b62addb624a3b51b6e8a213fec9b97dbfd0 Author: Liviu Dudau <Liviu.Dudau@arm.com> Date: Wed Sep 24 11:27:33 2014 -0600 of/pci: Add support for parsing PCI host bridge resources from DT Provide a function to parse the PCI DT ranges that can be used to create a pci_host_bridge structure together with its associated bus. Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> [make io_base parameter optional] Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Arnd Bergmann <arnd@arndb.de> CC: Grant Likely <grant.likely@linaro.org> CC: Rob Herring <robh+dt@kernel.org> CC: Catalin Marinas <catalin.marinas@arm.com> commit 9eca80461a45177e456219a9cd944c27675d6512 Author: Tejun Heo <tj@kernel.org> Date: Wed Sep 24 13:07:33 2014 -0400 Revert "blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe" This reverts commit 0a30288da1aec914e158c2d7a3482a85f632750f, which was a temporary fix for SCSI blk-mq stall issue. The following patches will fix the issue properly by introducing atomic mode to percpu_ref. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@lst.de> commit 83417b202bf5aa2cd82637aa81aa9f065cfe5f21 Author: Wolfram Sang <wsa@the-dreams.de> Date: Mon Sep 22 19:41:00 2014 +0200 i2c: move acpi code back into the core Commit 5d98e61d337c ("I2C/ACPI: Add i2c ACPI operation region support") renamed the i2c-core module. This may cause regressions for distributions, so put the ACPI code back into the core. Reported-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Lan Tianyu <tianyu.lan@intel.com> commit 964356938fcd3c0001a786f55b9f0a0fbe47656a Author: Andreas Werner <andreas.werner@men.de> Date: Wed Aug 27 19:53:06 2014 +0200 hwmon: (menf21bmc) Introduce MEN14F021P00 BMC HWMON driver Added driver to support the 14F021P00 BMC Hardware Monitoring. The BMC is a Board Management Controller including monitoring of the board voltages. Signed-off-by: Andreas Werner <andreas.werner@men.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit 38433639af915deeb0b0e28462dd740ce57b72fd Author: Andreas Werner <andreas.werner@men.de> Date: Wed Aug 27 19:52:36 2014 +0200 leds: leds-menf21bmc: Introduce MEN 14F021P00 BMC LED driver Added driver to support the 14F021P00 BMC LEDs. The BMC is a Board Management Controller including four LEDs which can be switched on and off. Signed-off-by: Andreas Werner <andreas.werner@men.de> Acked-by: Bryan Wu <cooloney@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit 5033263992eece84e19946d2cab940c86ec862ba Author: Andreas Werner <andreas.werner@men.de> Date: Wed Aug 27 19:52:06 2014 +0200 watchdog: menf21bmc_wdt: Introduce MEN 14F021P00 BMC Watchdog driver Added driver to support the 14F021P00 BMC Watchdog. The BMC is a Board Management Controller including watchdog functionality. Signed-off-by: Andreas Werner <andreas.werner@men.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit d6cc1f5824cbca392d099f3bb0c441efd9e54de9 Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Fri Sep 12 08:54:00 2014 +0200 Documentation: charger: max14577: Document exported sysfs entry Document the 'fast charge timer' setting exported by max14577 driver through sysfs entry. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit 8d70d68d7a1b3082ca5a3808be18103a83ae348d Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Fri Sep 12 08:53:59 2014 +0200 devicetree: mfd: max14577: Add device tree bindings document Add document describing device tree bindings for MAX14577 MFD drivers: MFD core, extcon, regulator and charger. Both MAX14577 and MAX77836 chipsets are documented. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit 2c33e9296202cd11bf2e2f801b69ffba0953748a Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Fri Sep 12 08:53:58 2014 +0200 power: max17040: Add ID for MAX77836 Fuel Gauge block MAX77836 has the same Fuel Gauge as MAX17040/17048. The max17040 driver can be safely re-used. The patch adds MAX77836 device to the array of i2c_device_id. Additionally it removes the id associated with MAX17040 device as the value is not used. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit e30110e9c96f48aea01abc3e6dfadb369cbafec3 Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Fri Sep 12 08:53:57 2014 +0200 charger: max14577: Configure battery-dependent settings from DTS and sysfs Remove hard-coded values for: - Fast Charge current, - End Of Charge current, - Fast Charge timer, - Overvoltage Protection Threshold, - Battery Constant Voltage, and use DTS or sysfs to configure them. This allows using the max14577 charger driver with different batteries. Now the charger driver requires valid configuration data from DTS. In case of wrong configuration data it fails during probe. The fast charge timer is configured through sysfs entry. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit b8f139f68f2099b7f8b4ef470a1e53210e3aa025 Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Fri Sep 12 08:53:56 2014 +0200 regulator/mfd: max14577: Export symbols for calculating charger current This patch prepares for changing the max14577 charger driver to allow configuring battery-dependent settings from DTS. The patch moves from regulator driver to MFD core driver and exports: - function for calculating register value for charger's current; - table of limits for chargers (MAX14577, MAX77836). Previously they were used only by the max14577 regulator driver. In next patch the charger driver will use them as well. Exporting them will reduce unnecessary code duplication. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Mark Brown <broonie@linaro.org> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit 3682a8ee87f9107253e51733f42da10160ce41e3 Author: Krzysztof Kozlowski <k.kozlowski@samsung.com> Date: Fri Sep 12 08:53:55 2014 +0200 charger: max14577: Add support for MAX77836 charger Add support for MAX77836 charger to the max14577 driver. The MAX77836 charger is almost the same as 14577 model except: - No dead-battery detection; - Support for special charger (like in MAX77693); - Support for DX over-voltage protection (like in MAX77693); - Lower values of charging current (two times lower current for slow/fast charge, much lower EOC current); - Slightly different values in ChgTyp field of STATUS2 register. On MAX14577 0x6 is reserved and 0x7 dead battery. On the MAX77836 the 0x6 means special charger and 0x7 is reserved. Regardless of these differences the driver maps them to one enum max14577_muic_charger_type. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> commit 2f4096e311ef0922c42cbf7bc5df44efb3aff716 Author: Quentin Lambert <lambert.quentin@gmail.com> Date: Sun Sep 7 20:04:28 2014 +0200 PCI: Remove assignment from complicated "if" conditions The modifications effectively change the value of len_tmp in the case where the first condition is not met. Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 79e50e72986c9fcb06d707ce587cfd24fefa33e3 Author: Quentin Lambert <lambert.quentin@gmail.com> Date: Sun Sep 7 20:03:32 2014 +0200 PCI: Remove assignment from "if" conditions The following Coccinelle semantic patch was used to find and correct cases of assignments in "if" conditions: @@ expression var, expr; statement S; @@ + var = expr; if( - (var = expr) + var ) S Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 656f978f9af9d8d77436e8159f51f7aa1e673309 Author: Quentin Lambert <lambert.quentin@gmail.com> Date: Sun Sep 7 20:02:47 2014 +0200 PCI: Remove unnecessary curly braces Remove curly braces in simple "if" cases. No functional change. Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit e0c524049f8279d00d2fbd4748b03234a2726fdd Author: Santosh Shilimkar <santosh.shilimkar@ti.com> Date: Thu Jul 10 11:30:08 2014 -0400 MAINTAINERS: Add Keystone Multicore Navigator drivers entry Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> commit 88139ed030583557751e279968e13e892ae10825 Author: Santosh Shilimkar <santosh.shilimkar@ti.com> Date: Sun Mar 30 17:29:04 2014 -0400 soc: ti: add Keystone Navigator DMA support The Keystone Navigator DMA driver sets up the dma channels and flows for the QMSS(Queue Manager SubSystem) who triggers the actual data movements across clients using destination queues. Every client modules like NETCP(Network Coprocessor), SRIO(Serial Rapid IO) and CRYPTO Engines has its own instance of packet dma hardware. QMSS has also an internal packet DMA module which is used as an infrastructure DMA with zero copy. Initially this driver was proposed as DMA engine driver but since the hardware is not typical DMA engine and hence doesn't comply with typical DMA engine driver needs, that approach was naked. Link to that discussion - https://lkml.org/lkml/2014/3/18/340 As aligned, now we pair the Navigator DMA with its companion Navigator QMSS subsystem driver. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kumar Gala <galak@codeaurora.org> Cc: Olof Johansson <olof@lixom.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Sandeep Nair <sandeep_n@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> commit 8172296d8717be1951da4bb4feb2700a60e8cdde Author: Santosh Shilimkar <santosh.shilimkar@ti.com> Date: Sun Mar 30 17:29:04 2014 -0400 Documentation: dt: soc: add Keystone Navigator DMA bindings The Keystone Navigator DMA driver sets up the dma channels and flows for the QMSS(Queue Manager SubSystem) who triggers the actual data movements across clients using destination queues. Every client modules like NETCP(Network Coprocessor), SRIO(Serial Rapid IO) and CRYPTO Engines has its own instance of packet dma hardware. QMSS has also an internal packet DMA module which is used as an infrastructure DMA with zero copy. Initially this driver was proposed as DMA engine driver but since the hardware is not typical DMA engine and hence doesn't comply with typical DMA engine driver needs, that approach was naked. Link to that discussion - https://lkml.org/lkml/2014/3/18/340 As aligned, now we pair the Navigator DMA with its companion Navigator QMSS subsystem driver. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kumar Gala <galak@codeaurora.org> Cc: Olof Johansson <olof@lixom.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Sandeep Nair <sandeep_n@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> commit 41f93af900a20d1a0a358b522b5129c89677e9dc Author: Sandeep Nair <sandeep_n@ti.com> Date: Fri Feb 28 10:47:50 2014 -0500 soc: ti: add Keystone Navigator QMSS driver The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of the main hardware sub system which forms the backbone of the Keystone Multi-core Navigator. QMSS consist of queue managers, packed-data structure processors(PDSP), linking RAM, descriptor pools and infrastructure Packet DMA. The Queue Manager is a hardware module that is responsible for accelerating management of the packet queues. Packets are queued/de-queued by writing or reading descriptor address to a particular memory mapped location. The PDSPs perform QMSS related functions like accumulation, QoS, or event management. Linking RAM registers are used to link the descriptors which are stored in descriptor RAM. Descriptor RAM is configurable as internal or external memory. The QMSS driver manages the PDSP setups, linking RAM regions, queue pool management (allocation, push, pop and notify) and descriptor pool management. The specifics on the device tree bindings for QMSS can be found in: Documentation/devicetree/bindings/soc/keystone-navigator-qmss.txt Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kumar Gala <galak@codeaurora.org> Cc: Olof Johansson <olof@lixom.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Sandeep Nair <sandeep_n@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> commit a4dfb8c41043dd6c2b9defbe846c44389c4b6f02 Author: Sandeep Nair <sandeep_n@ti.com> Date: Fri Feb 28 10:47:50 2014 -0500 Documentation: dt: soc: add Keystone Navigator QMSS bindings The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of the main hardware sub system which forms the backbone of the Keystone Multi-core Navigator. QMSS consist of queue managers, packed-data structure processors(PDSP), linking RAM, descriptor pools and infrastructure Packet DMA. The Queue Manager is a hardware module that is responsible for accelerating management of the packet queues. Packets are queued/de-queued by writing or reading descriptor address to a particular memory mapped location. The PDSPs perform QMSS related functions like accumulation, QoS, or event management. Linking RAM registers are used to link the descriptors which are stored in descriptor RAM. Descriptor RAM is configurable as internal or external memory. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kumar Gala <galak@codeaurora.org> Cc: Olof Johansson <olof@lixom.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Sandeep Nair <sandeep_n@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> commit 382a9c9adc1cd540f5b714b65db315fc1c0b553d Author: Quentin Lambert <lambert.quentin@gmail.com> Date: Sun Sep 7 20:02:04 2014 +0200 PCI: Add space before open parenthesis Add space before open parenthesis as is conventional. No functional change. [bhelgaas: fix a few more in ibmphp, shpchp] Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit fe6ce32189136370b3d236d1c32ab812b93cd0d8 Author: Yijing Wang <wangyijing@huawei.com> Date: Wed Sep 24 11:09:59 2014 +0800 PCI/MSI: Rename __read_msi_msg() to read_msi_msg() Rename __read_msi_msg() to read_msi_msg(). No functional change. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit c2eb2dc3461e522d6452e1f74e36194633d4db0d Author: Yijing Wang <wangyijing@huawei.com> Date: Wed Sep 24 11:09:53 2014 +0800 PCI/MSI: Remove unused read_msi_msg() Now no one uses read_msi_msg(), so remove it. No functional change. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 11c013fd8afbc7c6b2e15608ed5fc2c249552998 Author: Yijing Wang <wangyijing@huawei.com> Date: Wed Sep 24 11:09:45 2014 +0800 MSI/powerpc: Use __read_msi_msg() instead of read_msi_msg() rtas_setup_msi_irqs() already has the struct msi_desc pointer required by __read_msi_msg(), so call it directly instead of having read_msi_msg() look it up from the IRQ. No functional change. [bhelgaas: changelog] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: linuxppc-dev@lists.ozlabs.org commit eeeda4cd06e828b331b15741a204ff9f5874d28d Author: Ben Hutchings <ben@decadent.org.uk> Date: Wed Sep 24 13:30:12 2014 +0100 x86/relocs: Make per_cpu_load_addr static per_cpu_load_addr is only used for 64-bit relocations, but is declared in both configurations of relocs.c - with different types. This has undefined behaviour in general. GNU ld is documented to use the larger size in this case, but other tools may differ and some warn about this. References: https://bugs.debian.org/748577 Reported-by: Michael Tautschnig <mt@debian.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: 748577@bugs.debian.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1411561812.3659.23.camel@decadent.org.uk Signed-off-by: Ingo Molnar <mingo@kernel.org> commit 212be3b2320bcf33eff648bc4e1f0edbf4d90acf Author: Oleg Nesterov <oleg@redhat.com> Date: Sun Sep 21 20:42:32 2014 +0200 x86/lib/Makefile: Remove the unnecessary "+= thunk_64.o" Trivial. We have "lib-y += thunk_$(BITS).o" at the start, no need to add thunk_64.o if !CONFIG_X86_32. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Andy Lutomirski <luto@amacapital.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20140921184232.GB23727@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> commit 0ad6e3c5199be12c9745da8f8b9e3c9f8066c235 Author: Oleg Nesterov <oleg@redhat.com> Date: Sun Sep 21 20:41:53 2014 +0200 x86: Speed up ___preempt_schedule*() by using THUNK helpers ___preempt_schedule() does SAVE_ALL/RESTORE_ALL but this is suboptimal, we do not need to save/restore the callee-saved register. And we already have arch/x86/lib/thunk_*.S which implements the similar asm wrappers, so it makes sense to redefine ___preempt_schedule() as "THUNK ..." and remove preempt.S altogether. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Andy Lutomirski <luto@amacapital.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20140921184153.GA23727@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> commit 03bd4e1f7265548832a76e7919a81f3137c44fd1 Author: Wanpeng Li <wanpeng.li@linux.intel.com> Date: Wed Sep 24 16:38:05 2014 +0800 sched: Fix unreleased llc_shared_mask bit during CPU hotplug The following bug can be triggered by hot adding and removing a large number of xen domain0's vcpus repeatedly: BUG: unable to handle kernel NULL pointer dereference at 0000000000000004 IP: [..] find_busiest_group PGD 5a9d5067 PUD 13067 PMD 0 Oops: 0000 [#3] SMP [...] Call Trace: load_balance ? _raw_spin_unlock_irqrestore idle_balance __schedule schedule schedule_timeout ? lock_timer_base schedule_timeout_uninterruptible msleep lock_device_hotplug_sysfs online_store dev_attr_store sysfs_write_file vfs_write SyS_write system_call_fastpath Last level cache shared mask is built during CPU up and the build_sched_domain() routine takes advantage of it to setup the sched domain CPU topology. However, llc_shared_mask is not released during CPU disable, which leads to an invalid sched domainCPU topology. This patch fix it by releasing the llc_shared_mask correctly during CPU disable. Yasuaki also reported that this can happen on real hardware: https://lkml.org/lkml/2014/7/22/1018 His case is here: == Here is an example on my system. My system has 4 sockets and each socket has 15 cores and HT is enabled. In this case, each core of sockes is numbered as follows: | CPU# Socket#0 | 0-14 , 60-74 Socket#1 | 15-29, 75-89 Socket#2 | 30-44, 90-104 Socket#3 | 45-59, 105-119 Then llc_shared_mask of CPU#30 has 0x3fff80000001fffc0000000. It means that last level cache of Socket#2 is shared with CPU#30-44 and 90-104. When hot-removing socket#2 and #3, each core of sockets is numbered as follows: | CPU# Socket#0 | 0-14 , 60-74 Socket#1 | 15-29, 75-89 But llc_shared_mask is not cleared. So llc_shared_mask of CPU#30 remains having 0x3fff80000001fffc0000000. After that, when hot-adding socket#2 and #3, each core of sockets is numbered as follows: | CPU# Socket#0 | 0-14 , 60-74 Socket#1 | 15-29, 75-89 Socket#2 | 30-59 Socket#3 | 90-119 Then llc_shared_mask of CPU#30 becomes 0x3fff8000fffffffc0000000. It means that last level cache of Socket#2 is shared with CPU#30-59 and 90-104. So the mask has the wrong value. Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com> Tested-by: Linn Crosetto <linn@hp.com> Reviewed-by: Borislav Petkov <bp@suse.de> Reviewed-by: Toshi Kani <toshi.kani@hp.com> Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: <stable@vger.kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Steven Rostedt <srostedt@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1411547885-48165-1-git-send-email-wanpeng.li@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> commit 24832b4de315ad00e5430a53772750dfcf18514d Author: Minghuan Lian <Minghuan.Lian@freescale.com> Date: Tue Sep 23 22:28:59 2014 +0800 PCI: designware: Add get_msi_data() to pcie_host_ops Add a struct pcie_host_ops .get_msi_data() method for platforms to return their special MSI message data. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Mohit KUMAR <mohit.kumar@st.com> commit ee1b5b165c0a2f04d2107e634e51f05d0eb107de Author: Bryan O'Donoghue <pure.logic@nexus-software.ie> Date: Wed Sep 24 00:26:24 2014 +0100 x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead Quark x1000 advertises PGE via the standard CPUID method PGE bits exist in Quark X1000's PTEs. In order to flush an individual PTE it is necessary to reload CR3 irrespective of the PTE.PGE bit. See Quark Core_DevMan_001.pdf section 6.4.11 This bug was fixed in Galileo kernels, unfixed vanilla kernels are expected to crash and burn on this platform. Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Cc: Borislav Petkov <bp@alien8.de> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/1411514784-14885-1-git-send-email-pure.logic@nexus-software.ie Signed-off-by: Ingo Molnar <mingo@kernel.org> commit 450e344e421b9f555261a2d97952d9e71d4cb082 Author: Minghuan Lian <Minghuan.Lian@freescale.com> Date: Tue Sep 23 22:28:58 2014 +0800 PCI: designware: Rename get_msi_data() to get_msi_addr() The struct pcie_host_ops .get_msi_data() method returns the MSI message address. To accurately express its purpose, rename it to .get_msi_addr(). Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Mohit KUMAR <mohit.kumar@st.com> commit 0c61ea77cceafd1134225099961c2df0866b500f Author: Minghuan Lian <Minghuan.Lian@fre…

jomo · 2014-09-29T13:31:24Z

👍 we need this!

GIT 6fe676b243e5a0cb4cc4d9a4b094de8db0cdbf74 commit e500f488c27659bb6f5d313b336621f3daa67701 Author: Fabian Frederick <fabf@skynet.be> Date: Wed Oct 1 06:52:06 2014 +0200 net/dccp/ccid.c: add __init to ccid_activate ccid_activate is only called by __init ccid_initialize_builtins in same module. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0c5b8a46294d43fc63788839d3c18de0961ec1bc Author: Fabian Frederick <fabf@skynet.be> Date: Wed Oct 1 06:48:03 2014 +0200 net/dccp/proto.c: add __init to dccp_mib_init dccp_mib_init is only called by __init dccp_init in same module. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net> commit 082f58ac4a48d3f5cb4597232cb2ac6823a96f43 Author: Quinn Tran <quinn.tran@qlogic.com> Date: Thu Sep 25 06:22:28 2014 -0400 target: Fix queue full status NULL pointer for SCF_TRANSPORT_TASK_SENSE During temporary resource starvation at lower transport layer, command is placed on queue full retry path, which expose this problem. The TCM queue full handling of SCF_TRANSPORT_TASK_SENSE currently sends the same cmd twice to lower layer. The 1st time led to cmd normal free path. The 2nd time cause Null pointer access. This regression bug was originally introduced v3.1-rc code in the following commit: commit e057f53308a5f071556ee80586b99ee755bf07f5 Author: Christoph Hellwig <hch@infradead.org> Date: Mon Oct 17 13:56:41 2011 -0400 target: remove the transport_qf_callback se_cmd callback Signed-off-by: Quinn Tran <quinn.tran@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Cc: <stable@vger.kernel.org> # v3.1+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit db3a99b9921f27fe71ca8c0f218ee810e0e7fb69 Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:19 2014 -0400 qla_target: rearrange struct qla_tgt_prm On most (non-x86) 64bit platforms this will remove 8 padding bytes from the structure. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit f9b6721a9cef94908467abf7a2cacbd15a7d23cb Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:18 2014 -0400 qla_target: improve qlt_unmap_sg() Remove the inline attribute. Modern compilers ignore it and the function has grown beyond where inline made sense anyway. Remove the BUG_ON(!cmd->sg_mapped), and instead return if sg_mapped is not set. Every caller is doing this check, so we might as well have it in one place instead of four. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit 55a9066fffd2f533e7ed434b072469ef09d6c476 Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:15 2014 -0400 qla_target: make some global functions static Also removes the declarations from the header - including two declarations without function definitions or callers. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit c57010420654aca179c500f61e86315a337244ca Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:14 2014 -0400 qla_target: remove unused parameter Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit f81ccb489a7a641c1bed41b49cf8d72c199c68d5 Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:13 2014 -0400 target: simplify core_tmr_abort_task list_for_each_entry_safe is necessary if list objects are deleted from the list while traversing it. Not the case here, so we can use the base list_for_each_entry variant. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit 33940d09937276cd3c81f2874faf43e37c2db0e2 Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:12 2014 -0400 target: encapsulate smp_mb__after_atomic() The target code has a rather generous helping of smp_mb__after_atomic() throughout the code base. Most atomic operations were followed by one and none were preceded by smp_mb__before_atomic(), nor accompanied by a comment explaining the need for a barrier. Instead of trying to prove for every case whether or not it is needed, this patch introduces atomic_inc_mb() and atomic_dec_mb(), which explicitly include the memory barriers before and after the atomic operation. For now they are defined in a target header, although they could be of general use. Most of the existing atomic/mb combinations were replaced by the new helpers. In a few cases the atomic was sandwiched in spin_lock/spin_unlock and I simply removed the barrier. I suspect that in most cases the correct conversion would have been to drop the barrier. I also suspect that a few cases exist where a) the barrier was necessary and b) a second barrier before the atomic would have been necessary and got added by this patch. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit 74ed7e62289dc6d388996d7c8f89c2e7e95b9657 Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:11 2014 -0400 target: remove some smp_mb__after_atomic()s atomic_inc_return() already does an implicit memory barrier and the second case was moved from an atomic to a plain flag operation. If a barrier were needed in the second case, it would have to be smp_mb(), not a variant optimized away for x86 and other architectures. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit 8f83269048628d7b139dacbfc6cc97befcbdd2e9 Author: Joern Engel <joern@logfs.org> Date: Tue Sep 16 16:23:10 2014 -0400 target: simplify core_tmr_release_req() And while at it, do minimal coding style fixes in the area. Signed-off-by: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit 9c7d6154bc4b9dfefd580490cdca5f7c72321464 Author: Andy Grover <agrover@redhat.com> Date: Mon Jun 30 16:39:46 2014 -0700 target: Remove core_tpg_release_virtual_lun0 function Simple and just called from one place. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit cd9d7cbaec8b622eee4edcd8bf481c4047f74915 Author: Andy Grover <agrover@redhat.com> Date: Mon Jun 30 16:39:44 2014 -0700 target: Change core_dev_del_lun to take a se_lun instead of unpacked_lun Remove core_tpg_pre_dellun entirely, since we don't need to get/check a pointer we already have. Nothing else can return an error, so core_dev_del_lun can return void. Rename core_tpg_post_dellun to remove_lun - a clearer name, now that pre_dellun is gone. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit cc83881f2c57caaf4b14adaffa65595640a59661 Author: Andy Grover <agrover@redhat.com> Date: Mon Jun 30 16:39:43 2014 -0700 target: core_tpg_post_dellun can return void Nothing in it can raise an error. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> commit 49be17235c0acd96f2ff0fe282867fe3a83f554c Author: hayeswang <hayeswang@realtek.com> Date: Wed Oct 1 13:25:11 2014 +0800 r8152: disable power cut for RTL8153 The firmware would be clear when the power cut is enabled for RTL8153. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 204c8704128943bf3f8b605f4b40bdc2b6bd89dc Author: hayeswang <hayeswang@realtek.com> Date: Wed Oct 1 13:25:10 2014 +0800 r8152: remove clearing bp The xxx_clear_bp() is used to halt the firmware. It only necessary for updating the new firmware. Besides, depend on the version of the current firmware, it may have problem to halt the firmware directly. Finally, halt the firmware would let the firmware code useless, and the bugs which are fixed by the firmware would occur. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit aa55c8e2f7a395dfc9e67fc6637321e19ce9bfe1 Author: Masahiro Yamada <yamada.m@jp.panasonic.com> Date: Tue Sep 9 20:02:24 2014 +0900 kbuild: handle C=... and M=... after entering into build directory This commit avoids processing C=... and M=... twice when O=... is also given. Besides, we can also remove KBUILD_EXTMOD="$(KBUILD_EXTMOD)" in the sub-make target. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Michal Marek <mmarek@suse.cz> commit 745a254322c898dadf019342cd7140f7867d2d0f Author: Masahiro Yamada <yamada.m@jp.panasonic.com> Date: Tue Sep 9 20:02:23 2014 +0900 kbuild: use $(Q) for sub-make target Since commit 066b7ed9558087a7957a1128f27d7a3462ff117f (kbuild: Do not print the build directory with make -s), "Q" is defined above the sub-make target. This commit takes advantage of that and replaces "$(if $(KBUILD_VERBOSE:1=),@)" with "$(Q)". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Michal Marek <mmarek@suse.cz> commit 7ff525712acf9325e9acdb27bbc93049ea2e850c Author: Masahiro Yamada <yamada.m@jp.panasonic.com> Date: Tue Sep 9 20:02:22 2014 +0900 kbuild: fake the "Entering directory ..." message more simply Commit c2e28dc975ea87feed84415006ae143424912ac7 (kbuild: Print the name of the build directory) added a gimmick to show the "Entering directory ...". Instead of echoing the hard-coded message (that is, we need to know the exact message), moving --no-print-directory would be easier. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Michal Marek <mmarek@suse.cz> commit 1b0ecb28b0cc216535ce6477d39aa610c3ff68a1 Author: Vlad Yasevich <vyasevich@gmail.com> Date: Tue Sep 30 19:39:37 2014 -0400 bnx2: Correctly receive full sized 802.1ad fragmes This driver, similar to tg3, has a check that will cause full sized 802.1ad frames to be dropped. The frame will be larger then the standard mtu due to the presense of vlan header that has not been stripped. The driver should not drop this frame and should process it just like it does for 802.1q. CC: Sony Chacko <sony.chacko@qlogic.com> CC: Dept-HSGLinuxNICDev@qlogic.com Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 7d3083ee36b51e425b6abd76778a2046906b0fd3 Author: Vlad Yasevich <vyasevich@gmail.com> Date: Tue Sep 30 19:39:36 2014 -0400 tg3: Allow for recieve of full-size 8021AD frames When receiving a vlan-tagged frame that still contains a vlan header, the length of the packet will be greater then MTU+ETH_HLEN since it will account of the extra vlan header. TG3 checks this for the case for 802.1Q, but not for 802.1ad. As a result, full sized 802.1ad frames get dropped by the card. Add a check for 802.1ad protocol when receving full sized frames. Suggested-by: Prashant Sreedharan <prashant@broadcom.com> CC: Prashant Sreedharan <prashant@broadcom.com> CC: Michael Chan <mchan@broadcom.com> Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 1e918876853aa85435e0f17fd8b4a92dcfff53d6 Author: Florian Westphal <fw@strlen.de> Date: Wed Oct 1 13:38:03 2014 +0200 r8169: add support for Byte Queue Limits tested on RTL8168d/8111d model using 'super_netperf 40' with TCP/UDP_STREAM. Output of while true; do for n in inflight limit; do echo -n $n\ ; cat $n; done; sleep 1; done during netperf run, 100mbit peer: inflight 0 limit 3028 inflight 6056 limit 4542 [ trimmed output for brevity, no limit/inflight changes during test steady-state ] limit 4542 inflight 3028 limit 6122 inflight 0 limit 6122 [ changed cable to 1gbit peer, restart netperf ] inflight 37850 limit 36336 inflight 33308 limit 31794 inflight 33308 limit 31794 inflight 27252 limit 25738 [ again, no changes during test ] inflight 27252 limit 25738 inflight 0 limit 28766 [ change cable to 100mbit peer, restart netperf ] limit 28766 inflight 27370 limit 28766 inflight 4542 limit 5990 inflight 6056 limit 4542 [ .. ] inflight 6056 limit 4542 inflight 0 [end of test] Cc: Francois Romieu <romieu@fr.zoreil.com> Cc: Hayes Wang <hayeswang@realtek.com> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit d0bf4a9e92b9a93ffeeacbd7b6cb83e0ee3dc2ef Author: Eric Dumazet <edumazet@google.com> Date: Mon Sep 29 13:29:15 2014 -0700 net: cleanup and document skb fclone layout Lets use a proper structure to clearly document and implement skb fast clones. Then, we might experiment more easily alternative layouts. This patch adds a new skb_fclone_busy() helper, used by tcp and xfrm, to stop leaking of implementation details. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0f1ca65ee50df042051e8fa3a14f73b0c71d45b9 Author: Arianna Avanzini <avanzini.arianna@gmail.com> Date: Fri Aug 22 13:20:02 2014 +0200 xen, blkfront: factor out flush-related checks from do_blkif_request() This commit factors out some checks related to the request insertion path, which can be done in an function instead of by itself. Reviewed-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> commit 61cecca865280bef4f8a9748d0a9afa5df351ac2 Author: Roger Pau Monné <roger.pau@citrix.com> Date: Mon Sep 15 11:55:27 2014 +0200 xen-blkback: fix leak on grant map error path Fix leaking a page when a grant mapping has failed. CC: stable@vger.kernel.org Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reported-and-Tested-by: Tao Chen <boby.chen@huawei.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> commit 12ea729645ace01e08f9654df155622898d3aae6 Author: Vitaly Kuznetsov <vkuznets@redhat.com> Date: Mon Sep 8 15:21:33 2014 +0200 xen/blkback: unmap all persistent grants when frontend gets disconnected blkback does not unmap persistent grants when frontend goes to Closed state (e.g. when blkfront module is being removed). This leads to the following in guest's dmesg: [ 343.243825] xen:grant_table: WARNING: g.e. 0x445 still in use! [ 343.243825] xen:grant_table: WARNING: g.e. 0x42a still in use! ... When load module -> use device -> unload module sequence is performed multiple times it is possible to hit BUG() condition in blkfront module: [ 343.243825] kernel BUG at drivers/block/xen-blkfront.c:954! [ 343.243825] invalid opcode: 0000 [#1] SMP [ 343.243825] Modules linked in: xen_blkfront(-) ata_generic pata_acpi [last unloaded: xen_blkfront] ... [ 343.243825] Call Trace: [ 343.243825] [<ffffffff814111ef>] ? unregister_xenbus_watch+0x16f/0x1e0 [ 343.243825] [<ffffffffa0016fbf>] blkfront_remove+0x3f/0x140 [xen_blkfront] ... [ 343.243825] RIP [<ffffffffa0016aae>] blkif_free+0x34e/0x360 [xen_blkfront] [ 343.243825] RSP <ffff88001eb8fdc0> We don't need to keep these grants if we're disconnecting as frontend might already forgot about them. Solve the issue by moving xen_blkbk_free_caches() call from xen_blkif_free() to xen_blkif_disconnect(). Now we can see the following: [ 928.590893] xen:grant_table: WARNING: g.e. 0x587 still in use! [ 928.591861] xen:grant_table: WARNING: g.e. 0x372 still in use! ... [ 929.592146] xen:grant_table: freeing g.e. 0x587 [ 929.597174] xen:grant_table: freeing g.e. 0x372 ... Backend does not keep persistent grants any more, reconnect works fine. CC: stable@vger.kernel.org Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> commit b248230c34970a6c1c17c591d63b464e8d2cfc33 Author: Yuchung Cheng <ycheng@google.com> Date: Mon Sep 29 13:20:38 2014 -0700 tcp: abort orphan sockets stalling on zero window probes Currently we have two different policies for orphan sockets that repeatedly stall on zero window ACKs. If a socket gets a zero window ACK when it is transmitting data, the RTO is used to probe the window. The socket is aborted after roughly tcp_orphan_retries() retries (as in tcp_write_timeout()). But if the socket was idle when it received the zero window ACK, and later wants to send more data, we use the probe timer to probe the window. If the receiver always returns zero window ACKs, icsk_probes keeps getting reset in tcp_ack() and the orphan socket can stall forever until the system reaches the orphan limit (as commented in tcp_probe_timer()). This opens up a simple attack to create lots of hanging orphan sockets to burn the memory and the CPU, as demonstrated in the recent netdev post "TCP connection will hang in FIN_WAIT1 after closing if zero window is advertised." http://www.spinics.net/lists/netdev/msg296539.html This patch follows the design in RTO-based probe: we abort an orphan socket stalling on zero window when the probe timer reaches both the maximum backoff and the maximum RTO. For example, an 100ms RTT connection will timeout after roughly 153 seconds (0.3 + 0.6 + .... + 76.8) if the receiver keeps the window shut. If the orphan socket passes this check, but the system already has too many orphans (as in tcp_out_of_resources()), we still abort it but we'll also send an RST packet as the connection may still be active. In addition, we change TCP_USER_TIMEOUT to cover (life or dead) sockets stalled on zero-window probes. This changes the semantics of TCP_USER_TIMEOUT slightly because it previously only applies when the socket has pending transmission. Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Reported-by: Andrey Dmitrov <andrey.dmitrov@oktetlabs.ru> Signed-off-by: David S. Miller <davem@davemloft.net> commit 3edfe0030bb7a82dab2a30a29ea6e1800e600c4b Author: Helge Deller <deller@gmx.de> Date: Wed Oct 1 22:11:01 2014 +0200 parisc: Fix serial console for machines with serial port on superio chip Fix the serial console on machines where the serial port is located on the SuperIO chip. Signed-off-by: Helge Deller <deller@gmx.de> Cc: Peter Hurley <peter@hurleysoftware.com> commit baf378126b08474de2e2428b16e62a69df0339d9 Author: Michael Opdenacker <michael.opdenacker@free-electrons.com> Date: Wed Oct 1 14:07:39 2014 -0600 rsxx: Remove deprecated IRQF_DISABLED This removes the use of the IRQF_DISABLED flag from drivers/block/rsxx/core.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by Philip Kelleher <pjk1939@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <axboe@fb.com> commit cb57659a15c6c0576493cc8a10474ce7ffd44eb3 Author: Fabian Frederick <fabf@skynet.be> Date: Wed Oct 1 19:30:03 2014 +0200 cipso: add __init to cipso_v4_cache_init cipso_v4_cache_init is only called by __init cipso_v4_init Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net> commit 57a02c39c1c20ed03a86f8014c11a8c18b94cac3 Author: Fabian Frederick <fabf@skynet.be> Date: Wed Oct 1 19:18:57 2014 +0200 inet: frags: add __init to ip4_frags_ctl_register ip4_frags_ctl_register is only called by __init ipfrag_init Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net> commit 47d7a88c188f06ffaea3a539f84fe10cb4e77787 Author: Fabian Frederick <fabf@skynet.be> Date: Wed Oct 1 18:27:50 2014 +0200 tcp: add __init to tcp_init_mem tcp_init_mem is only called by __init tcp_init. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net> commit ee7a1beb9759c94aea67dd887faf5e447a5c6710 Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:21 2014 +0800 r8169:call "rtl8168_driver_start" "rtl8168_driver_stop" only when hardware dash function is enabled These two functions are used to inform dash firmware that driver is been brought up or brought down. So call these two functions only when hardware dash function is enabled. Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 2a9b4d9670e71784896d95c41c9b0acd50db1dbb Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:20 2014 +0800 r8169:modify the behavior of function "rtl8168_oob_notify" In function "rtl8168_oob_notify", using function "rtl_eri_write" to access eri register 0xe8, instead of using MAC register "ERIDR" and "ERIAR" to access it. For using function "rtl_eri_write" in function "rtl8168_oob_notify", need to move down "rtl8168_oob_notify" related functions under the function "rtl_eri_write". Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 2f8c040ce6791ef0477e6d59768ee3d5fd0df0fd Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:19 2014 +0800 r8169:change the name of function "r8168dp_check_dash" to "r8168_check_dash" DASH function not only RTL8168DP can support, but also RTL8168EP. So change the name of function "r8168dp_check_dash" to "r8168_check_dash". Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 706123d06c18b55da5e9da21e2d138ee789bf8f4 Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:18 2014 +0800 r8169:change the name of function"rtl_w1w0_eri" Change the name of function "rtl_w1w0_eri" to "rtl_w0w1_eri". In this function, the local variable "val" is "write zeros then write ones". Please see below code. (val & ~m) | p In this patch, change the function name from "xx_w1w0_xx" to "xx_w0w1_xx". The changed function name is more suitable for it's behavior. Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 7656442824f6174b56a19c664fe560972df56ad4 Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:17 2014 +0800 r8169:for function "rtl_w1w0_phy" change its name and behavior Change function name from "rtl_w1w0_phy" to "rtl_w0w1_phy". And its behavior from "write ones then write zeros" to "write zeros then write ones". In Realtek internal driver, bitwise operations are almost "write zeros then write ones". For easy to port hardware parameters from Realtek internal driver to Linux kernal driver "r8169", we would like to change this function's behavior and its name. Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit ac85bcdbc0ffd3903d6db4abcd769ecacf98605b Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:16 2014 +0800 r8169:add more chips to support magic packet v2 For RTL8168F RTL8168FB RTL8168G RTL8168GU RTL8411 RTL8411B RTL8402 RTL8107E, the magic packet enable bit is changed to eri 0xde bit0. In this patch, change magic packet enable bit of these chips to eri 0xde bit0. Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 89cceb2729c752e6ff9b3bc8650a70f29884f116 Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:15 2014 +0800 r8169:add support more chips to get mac address from backup mac address register RTL8168FB RTL8168G RTL8168GU RTL8411 RTL8411B RTL8106EUS RTL8402 can support get mac address from backup mac address register. Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 42fde7371035144037844f41bd16950de9912bdb Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:14 2014 +0800 r8169:add disable/enable RTL8411B pll function RTL8411B can support disable/enable pll function. Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit b8e5e6ad7115befef13a4493f1d2b8e438abc058 Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:13 2014 +0800 r8169:add disable/enable RTL8168G pll function RTL8168G also can disable/enable pll function. Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 05b9687bb3606190304f08c2e4cd63de8717e30b Author: Chun-Hao Lin <hau@realtek.com> Date: Wed Oct 1 23:17:12 2014 +0800 r8169:change uppercase number to lowercase number Signed-off-by: Chun-Hao Lin <hau@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit a29c9c43bb633a9965909cd548879fee4aa789a4 Author: David L Stevens <david.stevens@oracle.com> Date: Wed Oct 1 11:05:27 2014 -0400 sunvnet: fix potential NULL pointer dereference One of the error cases for vnet_start_xmit()'s "out_dropped" label is port == NULL, so only mess with port->clean_timer when port is not NULL. Signed-off-by: David L Stevens <david.stevens@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit e506d405ac7d34d03996c97ac68aa2ac010be64a Author: Thierry Reding <treding@nvidia.com> Date: Wed Oct 1 13:59:00 2014 +0200 net: dsa: Fix build warning for !PM_SLEEP The dsa_switch_suspend() and dsa_switch_resume() functions are only used when PM_SLEEP is enabled, so they need #ifdef CONFIG_PM_SLEEP protection to avoid a compiler warning. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 84ac1f2ca41f5888cc995944c073a5220f3ed549 Author: Tanmay Inamdar <tinamdar@apm.com> Date: Fri Sep 26 14:08:25 2014 -0700 arm64: dts: Add APM X-Gene PCIe device tree nodes Add the device tree nodes for APM X-Gene PCIe host controller and PCIe clock interface. Since X-Gene SOC supports maximum 5 ports, 5 dts nodes are added. Signed-off-by: Tanmay Inamdar <tinamdar@apm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 2896e4418b17363f211e084471b589e3c06a7248 Author: Bjorn Helgaas <bhelgaas@google.com> Date: Wed Oct 1 13:01:35 2014 -0600 PCI: xgene: Add APM X-Gene PCIe driver Add the AppliedMicro X-Gene SOC PCIe host controller driver. The X-Gene PCIe controller supports up to 8 lanes and GEN3 speed. The X-Gene SOC supports up to 5 PCIe ports. [bhelgaas: folded in MAINTAINERS and bindings updates] Tested-by: Ming Lei <ming.lei@canonical.com> Tested-by: Dann Frazier <dann.frazier@canonical.com> Signed-off-by: Tanmay Inamdar <tinamdar@apm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com> (driver) commit 3c87dcbfb36ce6d3d9087f0163c02ba5690d9a85 Author: Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com> Date: Wed Oct 1 11:01:17 2014 +0200 net: ll_temac: Remove unnecessary ether_setup after alloc_etherdev Calling ether_setup is redundant since alloc_etherdev calls it. Signed-off-by: Subbaraya Sundeep Bhatta <sbhatta@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 8493ecca74a7b4a66e19676de1a0f14194179941 Author: Benjamin Tissoires <benjamin.tissoires@redhat.com> Date: Wed Oct 1 11:59:47 2014 -0400 HID: uHID: fix excepted report type When uhid_get_report() or uhid_set_report() are called, they emit on the char device a UHID_GET_REPORT or UHID_SET_REPORT message. Then, the protocol says that the user space asnwers with UHID_GET_REPORT_REPLY or UHID_SET_REPORT_REPLY. Unfortunatelly, the current code waits for an event of type UHID_GET_REPORT or UHID_SET_REPORT instead of the reply one. Add 1 to UHID_GET_REPORT or UHID_SET_REPORT to actually wait for the reply, and validate the reply. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> commit c8df6ac9452e8f47a6f660993c526d13e858a6f3 Author: Lucas Stach <l.stach@pengutronix.de> Date: Tue Sep 30 18:36:27 2014 +0200 PCI: designware: Remove open-coded bitmap operations Replace them by using the standard kernel bitmap ops. No functional change, but makes the code a lot cleaner. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pratyush Anand <pratyush.anand@st.com> Acked-by: Jingoo Han <jg1.han@samsung.com> commit 2199f0608864cf4e8c93d37842a5ee50c8d79843 Author: Mikulas Patocka <mpatocka@redhat.com> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: sort writes Write requests are sorted in a red-black tree structure and are submitted in the sorted order. In theory the sorting should be performed by the underlying disk scheduler, however, in practice the disk scheduler only accepts and sorts a finite number of requests. To allow the sorting of all requests, dm-crypt needs to implement its own own sorting. The overhead associated with rbtree-based sorting is considered negligible so it is not used conditionally. Even on SSD sorting can be beneficial since in-order request dispatch promotes lower latency IO completion to the upper layers. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit 648fee35be4c75667aa18bf513f7e7e65c01640b Author: Mikulas Patocka <mpatocka@redhat.com> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: offload writes to thread Submitting write bios directly in the encryption thread caused serious performance degradation. On a multiprocessor machine, encryption requests finish in a different order than they were submitted. Consequently, write requests would be submitted in a different order and it could cause severe performance degradation. Move the submission of write requests to a separate thread so that the requests can be sorted before submitting. But this commit improves dm-crypt performance even without having dm-crypt perform request sorting (in particular it enables IO schedulers like CFQ to sort more effectively). Note: it is required that a previous commit ("dm crypt: don't allocate pages for a partial request") be applied before applying this patch. Otherwise, this commit could introduce a crash. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit 4a0d7e0464226eee625a5b77484c339334453882 Author: Mikulas Patocka <mpatocka@redhat.com> Date: Fri Mar 28 15:51:55 2014 -0400 dm crypt: use unbound workqueue for request processing Use unbound workqueue so that work is automatically balanced between available CPUs. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit 72bfc40ca3b393cb0bc6b5e2ce364e6c6ce0f390 Author: Mikulas Patocka <mpatocka@redhat.com> Date: Thu May 29 14:18:12 2014 -0400 dm crypt: remove io_pending refcount member from dm_crypt_io Commit "dm crypt: don't allocate pages for a partial request" changed the code to allocate all pages for one request. There is always just one pending request, so the io_pending refcount may be removed. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit 42196fec8945cc84c032b7f59deaffee82036245 Author: Mikulas Patocka <mpatocka@redhat.com> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: remove unused io_pool and _crypt_io_pool The previous commits ("dm crypt: use per-bio data") and ("dm crypt: don't allocate pages for a partial request") stopped using the io_pool slab mempool and backing _crypt_io_pool kmem cache. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit ebfda24b1e1bf483accdb900f8625151d8f01383 Author: Mikulas Patocka <mpatocka@redhat.com> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: avoid deadlock in mempools Fix a theoretical deadlock introduced in the previous commit ("dm crypt: don't allocate pages for a partial request"). The function crypt_alloc_buffer may be called concurrently. If we allocate from the mempool concurrently, there is a possibility of deadlock. For example, if we have mempool of 256 pages, two processes, each wanting 256, pages allocate from the mempool concurrently, it may deadlock in a situation where both processes have allocated 128 pages and the mempool is exhausted. In order to avoid such a scenario, we allocate the pages under a mutex. In order to not degrade performance with excessive locking, we try non-blocking allocations without a mutex first and if it fails, we fallback to a blocking allocation with a mutex. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit b9ea7cb3fb237078be400522880932008c630fb7 Author: Mikulas Patocka <mpatocka@redhat.com> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: don't allocate pages for a partial request Change crypt_alloc_buffer so that it only ever allocates pages for a full request. This change is a prerequisite for the commit "dm crypt: offload writes to thread". Which implies this change is effectively required for the upcoming cpu parallelization changes. But this change simplifies the dm-crypt code at the expense of reduced throughput in low memory conditions (where allocation for a partial request is most useful). This change also enables the removal of the io_pending refcount. Note: the next commit ("dm-crypt: avoid deadlock in mempools") is needed to fix a theoretical deadlock. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit 117cd3e12232afea97dd31489fbde8888ad22b3e Author: Heinz Mauelshagen <heinzm@redhat.com> Date: Wed Sep 24 17:47:19 2014 +0200 dm raid: add discard support for RAID levels 4, 5 and 6 In case of RAID levels 4, 5 and 6 we have to verify each RAID members' ability to zero data on discards to avoid stripe data corruption -- if discard_zeroes_data is not set for each RAID member discard support must be disabled. Also add an 'ignore_discard' table argument to the target in order to ignore discard processing completely on a RAID array, hence not passing down discards to MD personalities. This 'ignore_discard' control provides the ability to: - prohibit discards in case of _potential_ data corruptions in RAID4/5/6 (e.g. if ability to zero data on discard is flawed in a RAID member) - avoid discard processing overhead Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> commit 04c308f43a90a9b3b84c344b324d6af29288da05 Author: Mikulas Patocka <mpatocka@redhat.com> Date: Wed Oct 1 13:29:48 2014 -0400 dm bufio: when done scanning return from __scan immediately When __scan frees the required number of buffer entries that the shrinker requested (nr_to_scan becomes zero) it must return. Before this fix the __scan code exited only the inner loop and continued in the outer loop. Also, move dm_bufio_cond_resched to __scan's inner loop, so that iterating the bufio client's lru lists doesn't result in scheduling latency. Reported-by: Joe Thornber <thornber@redhat.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org # 3.2+ commit 5ec094057c7df5ff80f5e7fe282f47ad205fb976 Author: Bjorn Helgaas <bhelgaas@google.com> Date: Tue Sep 23 14:38:28 2014 -0600 PCI/MSI: Remove unnecessary temporary variable The only use of "status" is to hold a value which is immediately returned, so just return and remove the variable directly. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 56b72b40957947f7c08771f030102351d4c906df Author: Yijing Wang <wangyijing@huawei.com> Date: Mon Sep 29 18:35:16 2014 -0600 PCI/MSI: Use __write_msi_msg() instead of write_msi_msg() default_restore_msi_irq() already has the struct msi_desc pointer required by __write_msi_msg(), so call it directly instead of having write_msi_msg() look it up from the IRQ. No functional change. [bhelgaas: split into separate patch] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 1e8f4cc82eded0c3c97ef6e2f119782e42deda35 Author: Yijing Wang <wangyijing@huawei.com> Date: Wed Sep 24 11:09:45 2014 +0800 MSI/powerpc: Use __read_msi_msg() instead of read_msi_msg() rtas_setup_msi_irqs() already has the struct msi_desc pointer required by __read_msi_msg(), so call it directly instead of having read_msi_msg() look it up from the IRQ. No functional change. [bhelgaas: changelog] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: linuxppc-dev@lists.ozlabs.org commit 2b260085e466c345e78f23b1c9ad1d123d509ef8 Author: Yijing Wang <wangyijing@huawei.com> Date: Tue Sep 23 13:27:25 2014 +0800 PCI/MSI: Use __get_cached_msi_msg() instead of get_cached_msi_msg() Both callers of get_cached_msi_msg() start with a struct irq_data pointer, look up the corresponding IRQ number, and pass it to get_cached_msi_msg(), which then uses irq_get_irq_data() to look up the struct irq_data again to call __get_cached_msi_msg(). Since we already have the struct irq_data, call __get_cached_msi_msg() directly and skip the lookup work done by get_cached_msi_msg(). No functional change. [bhelgaas: changelog] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Tony Luck <tony.luck@intel.com> CC: linux-ia64@vger.kernel.org commit 468ff15a3ab98ed7153c29c68229ffb97f15a251 Author: Yijing Wang <wangyijing@huawei.com> Date: Tue Sep 23 13:27:24 2014 +0800 PCI/MSI: Add "msi_bus" sysfs MSI/MSI-X control for endpoints The "msi_bus" sysfs file for bridges sets a bus flag to allow or disallow future driver requests for MSI or MSI-X. Previously, the sysfs file existed for endpoints but did nothing. Add "msi_bus" support for endpoints, so an administrator can prevent the use of MSI and MSI-X for individual devices. Note that as for bridges, these changes only affect future driver requests for MSI or MSI-X, so drivers may need to be reloaded. Add documentation for the "msi_bus" sysfs file. [bhelgaas: changelog, comments, add "subordinate", add endpoint printk, rework bus_flags setting, make bus_flags printk unconditional] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 48c3c38f003c25d50a09d3da558667c5ecd530aa Author: Yijing Wang <wangyijing@huawei.com> Date: Tue Sep 23 11:02:42 2014 -0600 PCI/MSI: Remove "pos" from the struct msi_desc msi_attrib "msi_attrib.pos" is only used for MSI (not MSI-X), and we already cache the MSI capability offset in "dev->msi_cap". Remove "pos" from the struct msi_attrib and use "dev->msi_cap" directly. [bhelgaas: changelog, fix whitespace] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 81052769e48609525c452d8f078a5786b673e178 Author: Yijing Wang <wangyijing@huawei.com> Date: Tue Sep 23 13:27:22 2014 +0800 PCI/MSI: Remove unused kobject from struct msi_desc After commit 1c51b50c2995 ("PCI/MSI: Export MSI mode using attributes, not kobjects"), the kobject in struct msi_desc is unused. Remove the unused struct kobject from struct msi_desc. [bhelgaas: changelog] Fixes: 1c51b50c2995 ("PCI/MSI: Export MSI mode using attributes, not kobjects") Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> commit a06cd74cefe754341f747ddc4cf7b0058fa9bff8 Author: Alexander Gordeev <agordeev@redhat.com> Date: Tue Sep 23 12:45:58 2014 -0600 PCI/MSI: Rename pci_msi_check_device() to pci_msi_supported() Rename pci_msi_check_device() to pci_msi_supported() for clarity. Note that pci_msi_supported() returns true if MSI/MSI-X is supported, so code like: if (pci_msi_supported(...)) reads naturally. [bhelgaas: changelog, split to separate patch, reverse sense] Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 27e20603c54ba633ed259284d006275f13c9f95b Author: Alexander Gordeev <agordeev@redhat.com> Date: Tue Sep 23 14:25:11 2014 -0600 PCI/MSI: Move D0 check into pci_msi_check_device() Both callers of pci_msi_check_device() check that the device is in D0 state, so move the check from the callers into pci_msi_check_device() itself. In pci_enable_msi_range(), note that pci_msi_check_device() never returns a positive value any more, so the loop that called it until it returns zero or negative is no longer necessary. [bhelgaas: changelog, split to separate patch] Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit ad975ebad4c3ce8dcc7d0bb4db26ea5aca4cfc99 Author: Alexander Gordeev <agordeev@redhat.com> Date: Tue Sep 23 12:39:54 2014 -0600 PCI/MSI: Remove arch_msi_check_device() No architectures implement arch_msi_check_device() or the struct msi_chip .check_device() method, so remove them. Remove the "type" parameter to pci_msi_check_device() because it was only used to call arch_msi_check_device() and is no longer needed. [bhelgaas: changelog, split to separate patch] Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> commit 3930115e0dd67f61b3b1882c7a34d0baeff1bb4c Author: Alexander Gordeev <agordeev@redhat.com> Date: Sun Sep 7 20:57:54 2014 +0200 irqchip: armada-370-xp: Remove arch_msi_check_device() Move MSI checks from arch_msi_check_device() to arch_setup_msi_irqs(). This makes the code more compact and allows removing arch_msi_check_device() from generic MSI code. Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jason Cooper <jason@lakedaemon.net> CC: Thomas Gleixner <tglx@linutronix.de> commit 6b2fd7efeb888fa781c1f767de6c36497ac1596b Author: Alexander Gordeev <agordeev@redhat.com> Date: Sun Sep 7 20:57:53 2014 +0200 PCI/MSI/PPC: Remove arch_msi_check_device() Move MSI checks from arch_msi_check_device() to arch_setup_msi_irqs(). This makes the code more compact and allows removing arch_msi_check_device() from generic MSI code. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> commit 977104ece1568f2e2ad3f5fd8e55bd640e8ab55a Author: Mark Charlebois <charlebm@gmail.com> Date: Thu Sep 4 14:16:17 2014 -0700 arm: LLVMLinux: Use global stack register variable for percpu Using global current_stack_pointer works on both clang and gcc. current_stack_pointer is an unsigned long and needs to be cast as a pointer to dereference. KernelVersion: 3.17.0-rc6 Signed-off-by: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com> commit a35dc594542b29935cd3a92e53233ad4ba4e622f Author: Behan Webster <behanw@converseincode.com> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer in unwind_backtrace Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> commit 5c5da6724d8e1767405a3f4b611451a11ece99e2 Author: Behan Webster <behanw@converseincode.com> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Calculate current_thread_info from current_stack_pointer Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> commit f2b6d8c6c56c9a164a2d885ba34a09d613c959c9 Author: Behan Webster <behanw@converseincode.com> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer in save_stack_trace_tsk Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> commit 40802b84566a3d9731a8fea43b144301d9ac450d Author: Behan Webster <behanw@converseincode.com> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer for return_address Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and Clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> commit d80ced5236764b8c4ffda5545d5b357cf88c77c1 Author: Behan Webster <behanw@converseincode.com> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer to calculate pt_regs address Use the global current_stack_pointer to calculate the end of the stack for current_pt_regs() KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> commit 9d0d6994806b36891453beb1e94b6253f853af61 Author: Behan Webster <behanw@converseincode.com> Date: Tue Sep 3 22:27:26 2013 -0400 arm: LLVMLinux: Add global named register current_stack_pointer for ARM Define a global named register for current_stack_pointer. The use of this new variable guarantees that both gcc and clang can access this register in C code. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> commit 2c804d0f8fc7799981d9fdd8c88653541b28c1a7 Author: Eric Dumazet <edumazet@google.com> Date: Tue Sep 30 22:12:05 2014 -0700 ipv4: mentions skb_gro_postpull_rcsum() in inet_gro_receive() Proper CHECKSUM_COMPLETE support needs to adjust skb->csum when we remove one header. Its done using skb_gro_postpull_rcsum() In the case of IPv4, we know that the adjustment is not really needed, because the checksum over IPv4 header is 0. Lets add a comment to ease code comprehension and avoid copy/paste errors. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit eb51bbaf8dedf142a54a7ff58514a29b40d515bb Author: Stephen Rothwell <sfr@canb.auug.org.au> Date: Wed Oct 1 17:00:49 2014 +1000 fm10k: using vmalloc requires including linux/vmalloc.h Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 078efae00ffc76381c3248006e9cf0988163488f Author: Anish Bhatt <anish@chelsio.com> Date: Mon Sep 15 17:44:18 2014 -0700 [SCSI] cxgb4i: avoid holding mutex in interrupt context cxgbi_inet6addr_handler() can be called in interrupt context, so use rcu protected list while finding netdev. This is observed as a scheduling in atomic oops when running over ipv6. Fixes: fc8d0590d914 ("libcxgbi: Add ipv6 api to driver") Fixes: 759a0cc5a3e1 ("cxgb4i: Add ipv6 code to driver, call into libcxgbi ipv6 api") Signed-off-by: Anish Bhatt <anish@chelsio.com> Signed-off-by: Karen Xie <kxie@chelsio.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com> commit 34549ab09e62db9703811c6ed4715f2ffa1fd7fb Author: Jeff Layton <jlayton@primarydata.com> Date: Wed Oct 1 08:05:22 2014 -0400 nfsd: eliminate "to_delegation" define We now have cb_to_delegation and to_delegation, which do the same thing and are defined separately in different .c files. Move the cb_to_delegation definition into a header file and eliminate the redundant to_delegation definition. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeff Layton <jlayton@primarydata.com> commit 4a0efdc933680d908de11712a774a2c9492c3d5a Author: Hannes Reinecke <hare@suse.de> Date: Wed Oct 1 14:32:31 2014 +0200 block: misplaced rq_complete tracepoint The rq_complete tracepoint was never issued for empty requests, causing the resulting blktrace information to never show any completion for those request. Signed-off-by: Hannes Reinecke <hare@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@fb.com> commit fc2021fb9baf9ed375c8161b40b68e120e75c60e Author: Michael Opdenacker <michael.opdenacker@free-electrons.com> Date: Wed Oct 1 12:07:07 2014 +0200 block: hd: remove deprecated IRQF_DISABLED This patch removes the use of the IRQF_DISABLED flag from drivers/block/hd.c It's a NOOP since 2.6.35 and it will be removed one day. This also removes a related comment which is obsolete too. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Jens Axboe <axboe@fb.com> commit 19aeb5a65f1a6504fc665466c188241e7393d66f Author: Bob Peterson <rpeterso@redhat.com> Date: Mon Sep 29 08:52:04 2014 -0400 GFS2: Make rename not save dirent location This patch fixes a regression in the patch "GFS2: Remember directory insert point", commit 2b47dad866d04f14c328f888ba5406057b8c7d33. The problem had to do with the rename function: The function found space for the new dirent, and remembered that location. But then the old dirent was removed, which often moved the eligible location for the renamed dirent. Putting the new dirent at the saved location caused file system corruption. This patch adds a new "save_loc" variable to struct gfs2_diradd. If 1, the dirent location is saved. If 0, the dirent location is not saved and the buffer_head is released as per previous behavior. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> commit 5235166fbc332c8b5dcf49e3a498a8b510a77449 Author: Oliver Neukum <oneukum@suse.de> Date: Tue Sep 30 12:54:56 2014 +0200 HID: usbhid: add another mouse that needs QUIRK_ALWAYS_POLL There is a second mouse sharing the same vendor strings but different IDs. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz> commit 2013add4ce73c93ae2148969a9ec3ecc8b1e26fa Author: Gavin Shan <gwshan@linux.vnet.ibm.com> Date: Wed Oct 1 14:34:51 2014 +1000 powerpc/eeh: Show hex prefix for PE state sysfs As Michael suggested, the hex prefix for the output of EEH PE state sysfs entry (/sys/bus/pci/devices/xxx/eeh_pe_state) is always informative to users. Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> commit 24c20f10583647e30afe87b6f6d5e14bc7b1cbc6 Author: Christoph Hellwig <hch@lst.de> Date: Tue Sep 30 16:43:46 2014 +0200 scsi: add a CONFIG_SCSI_MQ_DEFAULT option Add a Kconfig option to enable the blk-mq path for SCSI by default to ease testing and deployment in setups that know they benefit from blk-mq. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Robert Elliott <elliott@hp.com> Tested-by: Robert Elliott <elliott@hp.com> commit e785060ea3a1c8e37a8bc1449c79e36bff2b5b13 Author: Dolev Raviv <draviv@codeaurora.org> Date: Thu Sep 25 15:32:36 2014 +0300 ufs: definitions for phy interface - Adding some of the definitions missing in unipro.h, including power enumeration. - Read Modify Write Line helper function - Indication for the type of suspend Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 374a246e4ebda1fc55d537877bf2412e511ecc7b Author: Subhash Jadavani <subhashj@codeaurora.org> Date: Thu Sep 25 15:32:35 2014 +0300 ufs: tune bkops while power managment events Add capability to control the auto bkops during suspend. If host explicitly enables the auto bkops (background operation) on device then only device would perform the bkops on its own. If auto bkops is not enabled explicitly and if the device reaches to state where it must do background operation, device would raise the urgent bkops exception event to host and then host will enable the auto bkops on device. This patch adds the option to choose whether auto bkops should be enabled during runtime suspend or not. Since we don't want to keep the device active to perform the non critical bkops, host will enable urgent bkops only. Keep auto-bkops enabled after resume if urgent bkops needed. If device bkops status shows that its in critical need of executing background operations, host should allow the device to continue doing background operations. Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 856b348305c98d4e0c8e5eafa97c61443197f8d3 Author: Sahitya Tummala <stummala@codeaurora.org> Date: Thu Sep 25 15:32:34 2014 +0300 ufs: Add support for clock scaling using devfreq framework The clocks for UFS device will be managed by generic DVFS (Dynamic Voltage and Frequency Scaling) framework within kernel. This devfreq framework works with different governors to scale the clocks. By default, UFS devices uses simple_ondemand governor which scales the clocks up if the load is more than upthreshold and scales down if the load is less than downthreshold. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 4cff6d991e4a291cf50fe2659da2ea9ad46620bf Author: Sahitya Tummala <stummala@codeaurora.org> Date: Thu Sep 25 15:32:33 2014 +0300 ufs: Add freq-table-hz property for UFS device Add freq-table-hz propery for UFS device to keep track of <min max> frequencies supported by UFS clocks. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 1ab27c9cf8b63dd8dec9e17b5c17721c7f3b6cc7 Author: Sahitya Tummala <stummala@codeaurora.org> Date: Thu Sep 25 15:32:32 2014 +0300 ufs: Add support for clock gating The UFS controller clocks can be gated after certain period of inactivity, which is typically less than runtime suspend timeout. In addition to clocks the link will also be put into Hibern8 mode to save more power. The clock gating can be turned on by enabling the capability UFSHCD_CAP_CLK_GATING. To enable entering into Hibern8 mode as part of clock gating, set the capability UFSHCD_CAP_HIBERN8_WITH_CLK_GATING. The tracing events for clock gating can be enabled through debugfs as: echo 1 > /sys/kernel/debug/tracing/events/ufs/ufshcd_clk_gating/enable cat /sys/kernel/debug/tracing/trace_pipe Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 7eb584db73bebbc9852a14341431ed6935419bec Author: Dolev Raviv <draviv@codeaurora.org> Date: Thu Sep 25 15:32:31 2014 +0300 ufs: refactor configuring power mode Sometimes, the device shall report its maximum power and speed capabilities, but we might not wish to configure it to use those maximum capabilities. This change adds support for the vendor specific host driver to implement power change notify callback. To enable configuring different power modes (number of lanes, gear number and fast/slow modes) it is necessary to split the configuration stage from the stage that reads the device max power mode. In addition, it is not required to read the configuration more than once, thus the configuration is stored after reading it once. Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 57d104c153d3d6d7bea60089e80f37501851ed2c Author: Subhash Jadavani <subhashj@codeaurora.org> Date: Thu Sep 25 15:32:30 2014 +0300 ufs: add UFS power management support This patch adds support for UFS device and UniPro link power management during runtime/system PM. Main idea is to define multiple UFS low power levels based on UFS device and UFS link power states. This would allow any specific platform or pci driver to choose the best suited low power level during runtime and system suspend based on their power goals. bkops handlig: To put the UFS device in sleep state when bkops is disabled, first query the bkops status from the device and enable bkops on device only if device needs time to perform the bkops. START_STOP handling: Before sending START_STOP_UNIT to the device well-known logical unit (w-lun) to make sure that the device w-lun unit attention condition is cleared. Write protection: UFS device specification allows LUs to be write protected, either permanently or power on write protected. If any LU is power on write protected and if the card is power cycled (by powering off VCCQ and/or VCC rails), LU's write protect status would be lost. So this means those LUs can be written now. To ensures that UFS device is power cycled only if the power on protect is not set for any of the LUs, check if power on write protect is set and if device is in sleep/power-off state & link in inactive state (Hibern8 or OFF state). If none of the Logical Units on UFS device is power on write protected then all UFS device power rails (VCC, VCCQ & VCCQ2) can be turned off if UFS device is in power-off state and UFS link is in OFF state. But current implementation would disable all device power rails even if UFS link is not in OFF state. Low power mode: If UFS link is in OFF state then UFS host controller can be power collapsed to avoid leakage current from it. Note that if UFS host controller is power collapsed, full UFS reinitialization will be required on resume to re-establish the link between host and device. Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 0ce147d48a3e3352859f0c185e98e8392bee7a25 Author: Subhash Jadavani <subhashj@codeaurora.org> Date: Thu Sep 25 15:32:29 2014 +0300 ufs: introduce well known logical unit in ufs UFS device may have standard LUs and LUN id could be from 0x00 to 0x7F. UFS device specification use "Peripheral Device Addressing Format" (SCSI SAM-5) for standard LUs. UFS device may also have the Well Known LUs (also referred as W-LU) which again could be from 0x00 to 0x7F. For W-LUs, UFS device specification only allows the "Extended Addressing Format" (SCSI SAM-5) which means the W-LUNs would start from 0xC100 onwards. This means max. LUN number reported from UFS device could be 0xC17F hence this patch advertise the "max_lun" as 0xC17F which will allow SCSI mid layer to detect the W-LUs as well. But once the W-LUs are detected, UFSHCD driver may get the commands with SCSI LUN id upto 0xC17F but UPIU LUN id field is only 8-bit wide so it requires the mapping of SCSI LUN id to UPIU LUN id. This patch also add support for this mapping. Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by: Christoph Hellwig <hch@lst.de> commit 2a8fa600445c45222632810a4811ce820279d106 Author: Subhash Jadavani <su…

commit e396900 upstream. Add a drm_sysfs_connector_remove call when we destroy the panel to make sure the connector node in sysfs gets deleted. This is required for proper unload and re-load of this driver as a module. Without this, we would get a warning at re-load time like so: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 824 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x54/0x74() sysfs: cannot create duplicate filename '/class/drm/card0-LVDS-1' Modules linked in: [...] CPU: 0 PID: 824 Comm: modprobe Not tainted 3.15.0-rc4-00027-g6484f96-dirty torvalds#81 [<c0013bb8>] (unwind_backtrace) from [<c0011824>] (show_stack+0x10/0x14) [<c0011824>] (show_stack) from [<c0034e8c>] (warn_slowpath_common+0x68/0x88) [<c0034e8c>] (warn_slowpath_common) from [<c0034edc>] (warn_slowpath_fmt+0x30/0x40) [<c0034edc>] (warn_slowpath_fmt) from [<c01243f4>] (sysfs_warn_dup+0x54/0x74) [<c01243f4>] (sysfs_warn_dup) from [<c0124708>] (sysfs_do_create_link_sd.isra.2+0xb0/0xb8) [<c0124708>] (sysfs_do_create_link_sd.isra.2) from [<c02ae37c>] (device_add+0x338/0x520) [<c02ae37c>] (device_add) from [<c02ae6e8>] (device_create_groups_vargs+0xa0/0xc4) [<c02ae6e8>] (device_create_groups_vargs) from [<c02ae758>] (device_create+0x24/0x2c) [<c02ae758>] (device_create) from [<c029b4ec>] (drm_sysfs_connector_add+0x64/0x204) [<c029b4ec>] (drm_sysfs_connector_add) from [<bf0b1fec>] (panel_modeset_init+0xb8/0x134 [tilcdc]) [<bf0b1fec>] (panel_modeset_init [tilcdc]) from [<bf0b2bf0>] (tilcdc_load+0x214/0x4c0 [tilcdc]) [<bf0b2bf0>] (tilcdc_load [tilcdc]) from [<c029955c>] (drm_dev_register+0xa4/0x104) [ .. snip .. ] ---[ end trace b2d09cd9578b0497 ]--- [drm:drm_sysfs_connector_add] *ERROR* failed to register connector device: -17 Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar> Tested-by: Darren Etheridge <detheridge@ti.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

BugLink: http://bugs.launchpad.net/bugs/1371601 commit e396900 upstream. Add a drm_sysfs_connector_remove call when we destroy the panel to make sure the connector node in sysfs gets deleted. This is required for proper unload and re-load of this driver as a module. Without this, we would get a warning at re-load time like so: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 824 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x54/0x74() sysfs: cannot create duplicate filename '/class/drm/card0-LVDS-1' Modules linked in: [...] CPU: 0 PID: 824 Comm: modprobe Not tainted 3.15.0-rc4-00027-g6484f96-dirty torvalds#81 [<c0013bb8>] (unwind_backtrace) from [<c0011824>] (show_stack+0x10/0x14) [<c0011824>] (show_stack) from [<c0034e8c>] (warn_slowpath_common+0x68/0x88) [<c0034e8c>] (warn_slowpath_common) from [<c0034edc>] (warn_slowpath_fmt+0x30/0x40) [<c0034edc>] (warn_slowpath_fmt) from [<c01243f4>] (sysfs_warn_dup+0x54/0x74) [<c01243f4>] (sysfs_warn_dup) from [<c0124708>] (sysfs_do_create_link_sd.isra.2+0xb0/0xb8) [<c0124708>] (sysfs_do_create_link_sd.isra.2) from [<c02ae37c>] (device_add+0x338/0x520) [<c02ae37c>] (device_add) from [<c02ae6e8>] (device_create_groups_vargs+0xa0/0xc4) [<c02ae6e8>] (device_create_groups_vargs) from [<c02ae758>] (device_create+0x24/0x2c) [<c02ae758>] (device_create) from [<c029b4ec>] (drm_sysfs_connector_add+0x64/0x204) [<c029b4ec>] (drm_sysfs_connector_add) from [<bf0b1fec>] (panel_modeset_init+0xb8/0x134 [tilcdc]) [<bf0b1fec>] (panel_modeset_init [tilcdc]) from [<bf0b2bf0>] (tilcdc_load+0x214/0x4c0 [tilcdc]) [<bf0b2bf0>] (tilcdc_load [tilcdc]) from [<c029955c>] (drm_dev_register+0xa4/0x104) [ .. snip .. ] ---[ end trace b2d09cd9578b0497 ]--- [drm:drm_sysfs_connector_add] *ERROR* failed to register connector device: -17 Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar> Tested-by: Darren Etheridge <detheridge@ti.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

When I used netdev_for_each_lower_dev in commit bad5316 ("vrf: remove slave queue and private slave struct") I thought that it acts like netdev_for_each_lower_private and can be used to remove the current device from the list while walking, but unfortunately it acts more like netdev_for_each_lower_private_rcu and doesn't allow it. The difference is where the "iter" points to, right now it points to the current element and that makes it impossible to remove it. Change the logic to be similar to netdev_for_each_lower_private and make it point to the "next" element so we can safely delete the current one. VRF is the only such user right now, there's no change for the read-only users. Here's what can happen now: [98423.249858] general protection fault: 0000 [#1] SMP [98423.250175] Modules linked in: vrf bridge(O) stp llc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace sunrpc crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel jitterentropy_rng sha256_generic hmac drbg ppdev aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd evdev serio_raw pcspkr virtio_balloon parport_pc parport i2c_piix4 i2c_core virtio_console acpi_cpufreq button 9pnet_virtio 9p 9pnet fscache ipv6 autofs4 ext4 crc16 mbcache jbd2 sg virtio_blk virtio_net sr_mod cdrom e1000 ata_generic ehci_pci uhci_hcd ehci_hcd usbcore usb_common virtio_pci ata_piix libata floppy virtio_ring virtio scsi_mod [last unloaded: bridge] [98423.255040] CPU: 1 PID: 14173 Comm: ip Tainted: G O 4.5.0-rc2+ torvalds#81 [98423.255386] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 [98423.255777] task: ffff8800547f5540 ti: ffff88003428c000 task.ti: ffff88003428c000 [98423.256123] RIP: 0010:[<ffffffff81514f3e>] [<ffffffff81514f3e>] netdev_lower_get_next+0x1e/0x30 [98423.256534] RSP: 0018:ffff88003428f940 EFLAGS: 00010207 [98423.256766] RAX: 0002000100000004 RBX: ffff880054ff9000 RCX: 0000000000000000 [98423.257039] RDX: ffff88003428f8b8 RSI: ffff88003428f950 RDI: ffff880054ff90c0 [98423.257287] RBP: ffff88003428f940 R08: 0000000000000000 R09: 0000000000000000 [98423.257537] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88003428f9e0 [98423.257802] R13: ffff880054a5fd00 R14: ffff88003428f970 R15: 0000000000000001 [98423.258055] FS: 00007f3d76881700(0000) GS:ffff88005d000000(0000) knlGS:0000000000000000 [98423.258418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [98423.258650] CR2: 00007ffe5951ffa8 CR3: 0000000052077000 CR4: 00000000000406e0 [98423.258902] Stack: [98423.259075] ffff88003428f960 ffffffffa0442636 0002000100000004 ffff880054ff9000 [98423.259647] ffff88003428f9b0 ffffffff81518205 ffff880054ff9000 ffff88003428f978 [98423.260208] ffff88003428f978 ffff88003428f9e0 ffff88003428f9e0 ffff880035b35f00 [98423.260739] Call Trace: [98423.260920] [<ffffffffa0442636>] vrf_dev_uninit+0x76/0xa0 [vrf] [98423.261156] [<ffffffff81518205>] rollback_registered_many+0x205/0x390 [98423.261401] [<ffffffff815183ec>] unregister_netdevice_many+0x1c/0x70 [98423.261641] [<ffffffff8153223c>] rtnl_delete_link+0x3c/0x50 [98423.271557] [<ffffffff815335bb>] rtnl_dellink+0xcb/0x1d0 [98423.271800] [<ffffffff811cd7da>] ? __inc_zone_state+0x4a/0x90 [98423.272049] [<ffffffff815337b4>] rtnetlink_rcv_msg+0x84/0x200 [98423.272279] [<ffffffff810cfe7d>] ? trace_hardirqs_on+0xd/0x10 [98423.272513] [<ffffffff8153370b>] ? rtnetlink_rcv+0x1b/0x40 [98423.272755] [<ffffffff81533730>] ? rtnetlink_rcv+0x40/0x40 [98423.272983] [<ffffffff8155d6e7>] netlink_rcv_skb+0x97/0xb0 [98423.273209] [<ffffffff8153371a>] rtnetlink_rcv+0x2a/0x40 [98423.273476] [<ffffffff8155ce8b>] netlink_unicast+0x11b/0x1a0 [98423.273710] [<ffffffff8155d2f1>] netlink_sendmsg+0x3e1/0x610 [98423.273947] [<ffffffff814fbc98>] sock_sendmsg+0x38/0x70 [98423.274175] [<ffffffff814fc253>] ___sys_sendmsg+0x2e3/0x2f0 [98423.274416] [<ffffffff810d841e>] ? do_raw_spin_unlock+0xbe/0x140 [98423.274658] [<ffffffff811e1bec>] ? handle_mm_fault+0x26c/0x2210 [98423.274894] [<ffffffff811e19cd>] ? handle_mm_fault+0x4d/0x2210 [98423.275130] [<ffffffff81269611>] ? __fget_light+0x91/0xb0 [98423.275365] [<ffffffff814fcd42>] __sys_sendmsg+0x42/0x80 [98423.275595] [<ffffffff814fcd92>] SyS_sendmsg+0x12/0x20 [98423.275827] [<ffffffff81611bb6>] entry_SYSCALL_64_fastpath+0x16/0x7a [98423.276073] Code: c3 31 c0 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 48 8b 06 55 48 81 c7 c0 00 00 00 48 89 e5 48 8b 00 48 39 f8 74 09 48 89 06 <48> 8b 40 e8 5d c3 31 c0 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 [98423.279639] RIP [<ffffffff81514f3e>] netdev_lower_get_next+0x1e/0x30 [98423.279920] RSP <ffff88003428f940> CC: David Ahern <dsa@cumulusnetworks.com> CC: David S. Miller <davem@davemloft.net> CC: Roopa Prabhu <roopa@cumulusnetworks.com> CC: Vlad Yasevich <vyasevic@redhat.com> Fixes: bad5316 ("vrf: remove slave queue and private slave struct") Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Reviewed-by: David Ahern <dsa@cumulusnetworks.com> Tested-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>

If iriap_register_lsap() fails to allocate memory, self->lsap is set to NULL. However, none of the callers handle the failure and irlmp_connect_request() will happily dereference it: iriap_register_lsap: Unable to allocated LSAP! ================================================================================ UBSAN: Undefined behaviour in net/irda/irlmp.c:378:2 member access within null pointer of type 'struct lsap_cb' CPU: 1 PID: 15403 Comm: trinity-c0 Not tainted 4.8.0-rc1+ torvalds#81 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 0000000000000000 ffff88010c7e78a8 ffffffff82344f40 0000000041b58ab3 ffffffff84f98000 ffffffff82344e94 ffff88010c7e78d0 ffff88010c7e7880 ffff88010630ad00 ffffffff84a5fae0 ffffffff84d3f5c0 000000000000017a Call Trace: [<ffffffff82344f40>] dump_stack+0xac/0xfc [<ffffffff8242f5a8>] ubsan_epilogue+0xd/0x8a [<ffffffff824302bf>] __ubsan_handle_type_mismatch+0x157/0x411 [<ffffffff83b7bdbc>] irlmp_connect_request+0x7ac/0x970 [<ffffffff83b77cc0>] iriap_connect_request+0xa0/0x160 [<ffffffff83b77f48>] state_s_disconnect+0x88/0xd0 [<ffffffff83b78904>] iriap_do_client_event+0x94/0x120 [<ffffffff83b77710>] iriap_getvaluebyclass_request+0x3e0/0x6d0 [<ffffffff83ba6ebb>] irda_find_lsap_sel+0x1eb/0x630 [<ffffffff83ba90c8>] irda_connect+0x828/0x12d0 [<ffffffff833c0dfb>] SYSC_connect+0x22b/0x340 [<ffffffff833c7e09>] SyS_connect+0x9/0x10 [<ffffffff81007bd3>] do_syscall_64+0x1b3/0x4b0 [<ffffffff845f946a>] entry_SYSCALL64_slow_path+0x25/0x25 ================================================================================ The bug seems to have been around since forever. There's more problems with missing error checks in iriap_init() (and indeed all of irda_init()), but that's a bigger problem that needs very careful review and testing. This patch will fix the most serious bug (as it's easily reached from unprivileged userspace). I have tested my patch with a reproducer. Cc: stable@vger.kernel.org Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>

If iriap_register_lsap() fails to allocate memory, self->lsap is set to NULL. However, none of the callers handle the failure and irlmp_connect_request() will happily dereference it: iriap_register_lsap: Unable to allocated LSAP! ================================================================================ UBSAN: Undefined behaviour in net/irda/irlmp.c:378:2 member access within null pointer of type 'struct lsap_cb' CPU: 1 PID: 15403 Comm: trinity-c0 Not tainted 4.8.0-rc1+ torvalds#81 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 0000000000000000 ffff88010c7e78a8 ffffffff82344f40 0000000041b58ab3 ffffffff84f98000 ffffffff82344e94 ffff88010c7e78d0 ffff88010c7e7880 ffff88010630ad00 ffffffff84a5fae0 ffffffff84d3f5c0 000000000000017a Call Trace: [<ffffffff82344f40>] dump_stack+0xac/0xfc [<ffffffff8242f5a8>] ubsan_epilogue+0xd/0x8a [<ffffffff824302bf>] __ubsan_handle_type_mismatch+0x157/0x411 [<ffffffff83b7bdbc>] irlmp_connect_request+0x7ac/0x970 [<ffffffff83b77cc0>] iriap_connect_request+0xa0/0x160 [<ffffffff83b77f48>] state_s_disconnect+0x88/0xd0 [<ffffffff83b78904>] iriap_do_client_event+0x94/0x120 [<ffffffff83b77710>] iriap_getvaluebyclass_request+0x3e0/0x6d0 [<ffffffff83ba6ebb>] irda_find_lsap_sel+0x1eb/0x630 [<ffffffff83ba90c8>] irda_connect+0x828/0x12d0 [<ffffffff833c0dfb>] SYSC_connect+0x22b/0x340 [<ffffffff833c7e09>] SyS_connect+0x9/0x10 [<ffffffff81007bd3>] do_syscall_64+0x1b3/0x4b0 [<ffffffff845f946a>] entry_SYSCALL64_slow_path+0x25/0x25 ================================================================================ The bug seems to have been around since forever. There's more problems with missing error checks in iriap_init() (and indeed all of irda_init()), but that's a bigger problem that needs very careful review and testing. This patch will fix the most serious bug (as it's easily reached from unprivileged userspace). I have tested my patch with a reproducer. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>

GIT 184ca823481c99dadd7d946e5afd4bb921eab30d commit b5ac851885accffe0485aea2805df8f2d49c95a8 Author: Roman Mashak <mrv@mojatatu.com> Date: Sat Aug 13 22:35:02 2016 -0700 net_sched: allow flushing tc police actions The act_police uses its own code to walk the action hashtable, which leads to that we could not flush standalone tc police actions, so just switch to tcf_generic_walker() like other actions. (Joint work from Roman and Cong.) Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0852e455238f8550fa92b1e40355eb2c6805787e Author: WANG Cong <xiyou.wangcong@gmail.com> Date: Sat Aug 13 22:35:01 2016 -0700 net_sched: unify the init logic for act_police Jamal reported a crash when we create a police action with a specific index, this is because the init logic is not correct, we should always create one for this case. Just unify the logic with other tc actions. Fixes: a03e6fe56971 ("act_police: fix a crash during removal") Reported-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 22dc13c837c33207548c8ee5116b64e2930a6e23 Author: WANG Cong <xiyou.wangcong@gmail.com> Date: Sat Aug 13 22:35:00 2016 -0700 net_sched: convert tcf_exts from list to pointer array As pointed out by Jamal, an action could be shared by multiple filters, so we can't use list to chain them any more after we get rid of the original tc_action. Instead, we could just save pointers to these actions in tcf_exts, since they are refcount'ed, so convert the list to an array of pointers. The "ugly" part is the action API still accepts list as a parameter, I just introduce a helper function to convert the array of pointers to a list, instead of relying on the C99 feature to iterate the array. Fixes: a85a970af265 ("net_sched: move tc_action into tcf_common") Reported-by: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 2734437ef3c2943090d0914bf91caa6b30451615 Author: WANG Cong <xiyou.wangcong@gmail.com> Date: Sat Aug 13 22:34:59 2016 -0700 net_sched: move tc offload macros to pkt_cls.h struct tcf_exts belongs to filters, should not be visible to plain tc actions. Cc: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0c23c3e705691cfb99c94f2760df2b456fe45194 Author: WANG Cong <xiyou.wangcong@gmail.com> Date: Sat Aug 13 22:34:58 2016 -0700 net_sched: fix a typo in tc_for_each_action() It is harmless because all users pass 'a' to this macro. Fixes: 00175aec941e ("net/sched: Macro instead of CONFIG_NET_CLS_ACT ifdef") Cc: Amir Vadai <amir@vadai.me> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 824a7e8863b3eb283343f891b11a782b4ec0d0de Author: WANG Cong <xiyou.wangcong@gmail.com> Date: Sat Aug 13 22:34:57 2016 -0700 net_sched: remove an unnecessary list_del() This list_del() for tc action is not needed actually, because we only use this list to chain bulk operations, therefore should not be carried for latter operations. Fixes: ec0595cc4495 ("net_sched: get rid of struct tcf_common") Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit f07fed82ad7994cc4d779ee79bdf7a46848c4b8f Author: WANG Cong <xiyou.wangcong@gmail.com> Date: Sat Aug 13 22:34:56 2016 -0700 net_sched: remove the leftover cleanup_a() After refactoring tc_action into tcf_common, we no longer need to cleanup temporary "actions" in list, they are permanently stored in the hashtable. Fixes: a85a970af265 ("net_sched: move tc_action into tcf_common") Reported-by: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 9ffcc3725f096e9f0d985f738b0e44214cd72d93 Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:37 2016 +0200 mlxsw: spectrum: Allow packets to be trapped from any PG When packets enter the device they are classified to a priority group (PG) buffer based on their PCP value. After their egress port and traffic class are determined they are moved to the switch's shared buffer and await transmission, if: (Ingress{Port}.Usage < Thres && Ingress{Port,PG}.Usage < Thres && Egress{Port}.Usage < Thres && Egress{Port,TC}.Usage < Thres) || (Ingress{Port}.Usage < Min || Ingress{Port,PG} < Min || Egress{Port}.Usage < Min || Egress{Port,TC}.Usage < Min) Packets scheduled to transmission through CPU port (trapped to CPU) use traffic class 7, which has a zero maximum and minimum quotas. However, when such packets arrive from PG 0 they are admitted to the shared buffer as PG 0 has a non-zero minimum quota. Allow all packets to be trapped to the CPU - regardless of the PG they were classified to - by assigning a 10KB minimum quota for CPU port and TC7. Fixes: 8e8dfe9fdf06 ("mlxsw: spectrum: Add IEEE 802.1Qaz ETS support") Reported-by: Tamir Winetroub <tamirw@mellanox.com> Tested-by: Tamir Winetroub <tamirw@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 8168287b5dfac9227a549ed87f5e111b7005e8a4 Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:36 2016 +0200 mlxsw: spectrum: Unmap 802.1Q FID before destroying it Before destroying the 802.1Q FID we should first remove the VID-to-FID mapping. This makes mlxsw_sp_fid_destroy() symmetric with regards to mlxsw_sp_fid_create(). Fixes: 14d39461b3f4 ("mlxsw: spectrum: Use per-FID struct for the VLAN-aware bridge") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0583272d91f0f4e21f1eb666786286863185be7e Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:35 2016 +0200 mlxsw: spectrum: Add missing rollbacks in error path While going over the code I noticed we are missing two rollbacks in the port's creation error path. Add them and adjust the place of one of them in the port's removal sequence so that both are symmetric. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0e7df1a290abbcf3ecf697bbbbd4549c9a113db0 Author: Jiri Pirko <jiri@mellanox.com> Date: Wed Aug 17 16:39:34 2016 +0200 mlxsw: reg: Fix missing op field fill-up Ralue pack function needs to set op, otherwise it is 0 for add always. Fixes: d5a1c749d22 ("mlxsw: reg: Add Router Algorithmic LPM Unicast Entry Register definition") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit a94a614fa2bd32848a67f8261228e193beb826ca Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:33 2016 +0200 mlxsw: spectrum: Trap loop-backed packets One of the conditions to generate an ICMP Redirect Message is that "the packet is being forwarded out the same physical interface that it was received from" (RFC 1812). Therefore, we need to be able to trap such packets and let the kernel decide what to do with them. For each RIF, enable the loop-back filter, which will raise the LBERROR trap whenever the ingress RIF equals the egress RIF. Fixes: 99724c18fc66 ("mlxsw: spectrum: Introduce support for router interfaces") Reported-by: Ilan Tayari <ilant@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit c20b80187a93b4fcc1c5c46fc8a436df1f17636d Author: Elad Raz <eladr@mellanox.com> Date: Wed Aug 17 16:39:32 2016 +0200 mlxsw: spectrum: Add missing packet traps Add the following traps: 1) MTU Error: Trap packets whose size is bigger than the egress RIF's MTU. If DF bit isn't set, traffic will continue to be routed in slow path. 2) TTL Error: Trap packets whose TTL expired. This allows traceroute to work properly. 3) OSPF packets. Fixes: 7b27ce7bb9cd ("mlxsw: spectrum: Add traps needed for router implementation") Signed-off-by: Elad Raz <eladr@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 2f25844c233650b2abb92b66b3d0af7d73b5f88f Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:31 2016 +0200 mlxsw: spectrum: Mark port as active before registering it Commit bbf2a4757b30 ("mlxsw: spectrum: Initialize ports at the end of init sequence") moved ports initialization to the end of the init sequence, which means ports are the first to be removed during fini. Since the FDB delayed work is still active when ports are removed it's possible for it to process FDB notifications of inactive ports, resulting in a warning message. Fix that by marking ports as inactive only after unregistering them. The NETDEV_UNREGISTER event will invoke bridge's driver port removal sequence that will cause the FDB (and FDB notifications) to be flushed. Fixes: bbf2a4757b30 ("mlxsw: spectrum: Initialize ports at the end of init sequence") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 05978481e77e47b0bcb1767d3783fa0e5a18f399 Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:30 2016 +0200 mlxsw: spectrum: Create PVID vPort before registering netdevice After registering a netdevice it's possible for user space applications to configure an IP address on it. From the driver's perspective, this means a router interface (RIF) should be created for the PVID vPort. Therefore, we must create the PVID vPort before registering the netdevice. Fixes: 99724c18fc66 ("mlxsw: spectrum: Introduce support for router interfaces") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit fa66d7e3fea7504e241e9004998af2c71814da18 Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:29 2016 +0200 mlxsw: spectrum: Remove redundant errors from the code Currently, when device configuration fails we emit errors to the kernel log despite the fact we already get these from the EMAD transaction layer, so remove them. In addition to being unnecessary, removing these error messages will allow us to reuse mlxsw_sp_port_add_vid() to create the PVID vPort before registering the netdevice. Fixes: 99724c18fc66 ("mlxsw: spectrum: Introduce support for router interfaces") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 7a35583ec5b64f17559c9de8d7c47f7360e40362 Author: Ido Schimmel <idosch@mellanox.com> Date: Wed Aug 17 16:39:28 2016 +0200 mlxsw: spectrum: Don't return upon error in removal path When removing a VLAN filter from the device we shouldn't return upon the first error we encounter, as otherwise we'll have resources that will never be freed nor used. Instead, we should keep trying to free as much resources as possible in a best effort mode. Remove the error message as well, since we already get these from the EMAD transaction code. Fixes: 99724c18fc66 ("mlxsw: spectrum: Introduce support for router interfaces") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit fbfe12c64f9650aa22f434dd9dd22df7ddf63221 Author: Dave Ertman <david.m.ertman@intel.com> Date: Fri Aug 12 09:56:32 2016 -0700 i40e: check for and deal with non-contiguous TCs The i40e driver was causing a kernel panic when non-contiguous Traffic Classes, or Traffic Classes not starting with TC0, were configured on a link partner switch. i40e does not support non-contiguous TCs. To fix this, the patch changes the logic when determining the total number of TCs enabled. Before, this would use the highest TC number enabled and assume that all TCs below it were also enabled. Now, we create a bitmask of enabled TCs and scan it to determine not only the number of TCs, but also if the set of enabled TCs starts at zero and is contiguous. If not, then DCB is disabled by only returning one TC. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> commit 3d951822be216d8c6fcfc8abf75e5ed307eeb646 Author: Alexander Duyck <alexander.h.duyck@intel.com> Date: Fri Aug 12 09:53:39 2016 -0700 ixgbe: Re-enable ability to toggle VLAN filtering Back when I submitted the GSO code I messed up and dropped the support for disabling the VLAN tag filtering via the feature bit. This patch re-enables the use of the NETIF_F_HW_VLAN_CTAG_FILTER to enable/disable the VLAN filtering independent of toggling promiscuous mode. Fixes: b83e30104b ("ixgbe/ixgbevf: Add support for GSO partial") Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> commit f60439bc21e3337429838e477903214f5bd8277f Author: Alexander Duyck <alexander.h.duyck@intel.com> Date: Thu Aug 11 14:51:56 2016 -0700 ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths When I was adding the code for enabling VLAN promiscuous mode with SR-IOV enabled I had inadvertently left the VLNCTRL.VFE bit unchanged as I has assumed there was code in another path that was setting it when we enabled SR-IOV. This wasn't the case and as a result we were just disabling VLAN filtering for all the VFs apparently. Also the previous patches were always clearing CFIEN which was always set to 0 by the hardware anyway so I am dropping the redundant bit clearing. Fixes: 16369564915a ("ixgbe: Add support for VLAN promiscuous with SR-IOV") Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> commit 8037dd60f45264c3fbbea4cc0cea5f2f0a774b5e Author: Jarod Wilson <jarod@redhat.com> Date: Tue Jul 26 14:25:35 2016 -0400 e1000e: fix PTP on e1000_pch_lpt variants I've got reports that the Intel I-218V NIC in Intel NUC5i5RYH systems used as a PTP slave experiences random ~10 hour clock jumps, which are resolved if the same workaround for the 82574 and 82583 is employed, so set the appropriate flag2 in e1000_pch_lpt_info too. Reported-by: Rupesh Patel <rupatel@redhat.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> commit 0be5b96cd8400aeb4bf3f8c5e7f5efaa38ae5055 Author: Jarod Wilson <jarod@redhat.com> Date: Tue Jul 26 14:25:34 2016 -0400 e1000e: factor out systim sanitization This is prepatory work for an expanding list of adapter families that have occasional ~10 hour clock jumps when being used for PTP. Factor out the sanitization function and convert to using a feature (bug) flag, per suggestion from Jesse Brandeburg. Littering functional code with device-specific checks is much messier than simply checking a flag, and having device-specific init set flags as needed. There are probably a number of other cases in the e1000e code that could/should be converted similarly. Suggested-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> commit 0066c8b6f4050d7c57f6379d6fd4535e2f267f17 Author: Kshitiz Gupta <kshitiz.gupta@ni.com> Date: Sat Jul 16 02:23:45 2016 -0500 igb: fix adjusting PTP timestamps for Tx/Rx latency Fix PHY delay compensation math in igb_ptp_tx_hwtstamp() and igb_ptp_rx_rgtstamp. Add PHY delay compensation in igb_ptp_rx_pktstamp(). In the IGB driver, there are two functions that retrieve timestamps received by the PHY - igb_ptp_rx_rgtstamp() and igb_ptp_rx_pktstamp(). The previous commit only changed igb_ptp_rx_rgtstamp(), and the change was incorrect. There are two instances in which PHY delay compensations should be made: - Before the packet transmission over the PHY, the latency between when the packet is timestamped and transmission of the packets, should be an add operation, but it is currently a subtract. - After the packets are received from the PHY, the latency between the receiving and timestamping of the packets should be a subtract operation, but it is currently an add. Signed-off-by: Kshitiz Gupta <kshitiz.gupta@ni.com> Fixes: 3f544d2 (igb: adjust ptp timestamps for tx/rx latency) Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> commit 55a4e778191cfcf675aa1f9716edb71a3014d5fb Author: sean.wang@mediatek.com <sean.wang@mediatek.com> Date: Tue Aug 16 13:55:15 2016 +0800 net: ethernet: mediatek: fix runtime warning raised by inconsistent struct device pointers passed to DMA API Runtime warning occurs if DMA-API debug feature is enabled that would be raised by pointers passed to DMA API as arguments to inconsistent struct device objects, so that the patch makes them usage aligned between DMA operations such as dma_map_*() and dma_unmap_*() to eliminate the warning. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit b2025c7cc92d5bfc8c5ce756c8d8a6f57c776fbd Author: sean.wang@mediatek.com <sean.wang@mediatek.com> Date: Tue Aug 16 13:55:14 2016 +0800 net: ethernet: mediatek: fix flow control settings on GMAC0 is not being enabled properly Commit 08ef55c6f257acf3bdc6940813f80e8f0f5d90ec ("net-next: mediatek: fix gigabit and flow control advertisement") had supported proper flow control settings for GMAC1. But for GMAC0, 1.GMAC0 shares the common logic with GMAC1 inside mtk_phy_link_adjust() to adapt various settings for the target phy. 2.GMAC0 uses fixed-phy to connect to a builtin gigabit switch with fixed link speed as commit 0c72c50f6f93b0c3daa9ea35d89ab3a933c7b5a0 ("net-next: mediatek: add fixed-phy support") describes. 3.However, fixed-phy doesn't enable SUPPORTED_Pause & SUPPORTED_Asym_Pause supported flag on default that would cause mtk_phy_link_adjust() not to enable flow control setting on GMAC0 properly and cause packet dropped when high traffic. Due to these reasons, the patch adds SUPPORTED_Pause & SUPPORTED_Asym_Pause supported flags on fixed-phy used by the driver to have proper handling on the both GMAC with the shared common logic. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 8ca7f4fe0733342c862b8585dd6eb6521b9bf533 Author: sean.wang@mediatek.com <sean.wang@mediatek.com> Date: Tue Aug 16 13:55:13 2016 +0800 net: ethernet: mediatek: fix RMII mode and add REVMII supported by GMAC The patch fixes up the incorrect setup of reduced MII (RMII) on GMAC and adds the supplement for the setup of reverse MII (REVMII) on GMAC , and rearranges the error handling for invalid PHY argument. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 33e7664a0af6e9a516f01014f39737aaa119b6d9 Author: Wei Yongjun <weiyj.lk@gmail.com> Date: Tue Jul 26 14:49:04 2016 +0000 power_supply: tps65217-charger: fix missing platform_set_drvdata() Add missing platform_set_drvdata() in tps65217_charger_probe(), otherwise calling platform_get_drvdata() in remove returns NULL. This is detected by Coccinelle semantic patch. Fixes: 3636859b280c ("power_supply: Add support for tps65217-charger") Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit d2fbdf76b85bcdfe57b8ef2ba09d20e8ada79abd Author: Vegard Nossum <vegard.nossum@oracle.com> Date: Sat Jul 23 08:15:04 2016 +0200 tipc: fix NULL pointer dereference in shutdown() tipc_msg_create() can return a NULL skb and if so, we shouldn't try to call tipc_node_xmit_skb() on it. general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 3 PID: 30298 Comm: trinity-c0 Not tainted 4.7.0-rc7+ #19 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 task: ffff8800baf09980 ti: ffff8800595b8000 task.ti: ffff8800595b8000 RIP: 0010:[<ffffffff830bb46b>] [<ffffffff830bb46b>] tipc_node_xmit_skb+0x6b/0x140 RSP: 0018:ffff8800595bfce8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000003023b0e0 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffffffff83d12580 RBP: ffff8800595bfd78 R08: ffffed000b2b7f32 R09: 0000000000000000 R10: fffffbfff0759725 R11: 0000000000000000 R12: 1ffff1000b2b7f9f R13: ffff8800595bfd58 R14: ffffffff83d12580 R15: dffffc0000000000 FS: 00007fcdde242700(0000) GS:ffff88011af80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcddde1db10 CR3: 000000006874b000 CR4: 00000000000006e0 DR0: 00007fcdde248000 DR1: 00007fcddd73d000 DR2: 00007fcdde248000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000090602 Stack: 0000000000000018 0000000000000018 0000000041b58ab3 ffffffff83954208 ffffffff830bb400 ffff8800595bfd30 ffffffff8309d767 0000000000000018 0000000000000018 ffff8800595bfd78 ffffffff8309da1a 00000000810ee611 Call Trace: [<ffffffff830c84a3>] tipc_shutdown+0x553/0x880 [<ffffffff825b4a3b>] SyS_shutdown+0x14b/0x170 [<ffffffff8100334c>] do_syscall_64+0x19c/0x410 [<ffffffff83295ca5>] entry_SYSCALL64_slow_path+0x25/0x25 Code: 90 00 b4 0b 83 c7 00 f1 f1 f1 f1 4c 8d 6d e0 c7 40 04 00 00 00 f4 c7 40 08 f3 f3 f3 f3 48 89 d8 48 c1 e8 03 c7 45 b4 00 00 00 00 <80> 3c 30 00 75 78 48 8d 7b 08 49 8d 75 c0 48 b8 00 00 00 00 00 RIP [<ffffffff830bb46b>] tipc_node_xmit_skb+0x6b/0x140 RSP <ffff8800595bfce8> ---[ end trace 57b0484e351e71f1 ]--- I feel like we should maybe return -ENOMEM or -ENOBUFS, but I'm not sure userspace is equipped to handle that. Anyway, this is better than a GPF and looks somewhat consistent with other tipc_msg_create() callers. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0dbff144a1e7310e2f8b7a957352c4be9aeb38e4 Author: Vitaly Kuznetsov <vkuznets@redhat.com> Date: Mon Aug 15 17:48:43 2016 +0200 hv_netvsc: fix bonding devices check in netvsc_netdev_event() Bonding driver sets IFF_BONDING on both master (the bonding device) and slave (the real NIC) devices and in netvsc_netdev_event() we want to skip master devices only. Currently, there is an uncertainty when a slave interface is removed: if bonding module comes first in netdev_chain it clears IFF_BONDING flag on the netdev and netvsc_netdev_event() correctly handles NETDEV_UNREGISTER event, but in case netvsc comes first on the chain it sees the device with IFF_BONDING still attached and skips it. As we still hold vf_netdev pointer to the device we crash on the next inject. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0f20d795f78d182c4b743d880a5e8dc4d39892fe Author: Vitaly Kuznetsov <vkuznets@redhat.com> Date: Mon Aug 15 17:48:42 2016 +0200 hv_netvsc: protect module refcount by checking net_device_ctx->vf_netdev We're not guaranteed to see NETDEV_REGISTER/NETDEV_UNREGISTER notifications only once per VF but we increase/decrease module refcount unconditionally. Check vf_netdev to make sure we don't take/release it twice. We presume that only one VF per netvsc device may exist. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 57c1826b991244d2144eb6e3d5d1b13a53cbea63 Author: Vitaly Kuznetsov <vkuznets@redhat.com> Date: Mon Aug 15 17:48:41 2016 +0200 hv_netvsc: reset vf_inject on VF removal We reset vf_inject on VF going down (netvsc_vf_down()) but we don't on VF removal (netvsc_unregister_vf()) so vf_inject stays 'true' while vf_netdev is already NULL and we're trying to inject packets into NULL net device in netvsc_recv_callback() causing kernel to crash. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit d072218f214929194db06069564495b6b9fff34a Author: Vitaly Kuznetsov <vkuznets@redhat.com> Date: Mon Aug 15 17:48:40 2016 +0200 hv_netvsc: avoid deadlocks between rtnl lock and vf_use_cnt wait Here is a deadlock scenario: - netvsc_vf_up() schedules netvsc_notify_peers() work and quits. - netvsc_vf_down() runs before netvsc_notify_peers() gets executed. As it is being executed from netdev notifier chain we hold rtnl lock when we get here. - we enter while (atomic_read(&net_device_ctx->vf_use_cnt) != 0) loop and wait till netvsc_notify_peers() drops vf_use_cnt. - netvsc_notify_peers() starts on some other CPU but netdev_notify_peers() will hang on rtnl_lock(). - deadlock! Instead of introducing additional synchronization I suggest we drop gwrk.dwrk completely and call NETDEV_NOTIFY_PEERS directly. As we're acting under rtnl lock this is legitimate. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit f9a7da9130ef0143eb900794c7863dc5c9051fbc Author: Vitaly Kuznetsov <vkuznets@redhat.com> Date: Mon Aug 15 17:48:39 2016 +0200 hv_netvsc: don't lose VF information struct netvsc_device is not suitable for storing VF information as this structure is being destroyed on MTU change / set channel operation (see rndis_filter_device_remove()). Move all VF related stuff to struct net_device_context which is persistent. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 3d7b33209201cbfa090d614db993571ca3c6b090 Author: Simon Horman <simon.horman@netronome.com> Date: Mon Aug 15 13:06:24 2016 +0200 gre: set inner_protocol on xmit Ensure that the inner_protocol is set on transmit so that GSO segmentation, which relies on that field, works correctly. This is achieved by setting the inner_protocol in gre_build_header rather than each caller of that function. It ensures that the inner_protocol is set when gre_fb_xmit() is used to transmit GRE which was not previously the case. I have observed this is not the case when OvS transmits GRE using lwtunnel metadata (which it always does). Fixes: 38720352412a ("gre: Use inner_proto to obtain inner header protocol") Cc: Pravin Shelar <pshelar@ovn.org> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net> commit 5e457896986e16c440c97bb94b9ccd95dd157292 Author: Lorenzo Colitti <lorenzo@google.com> Date: Sat Aug 13 01:13:38 2016 +0900 net: ipv6: Fix ping to link-local addresses. ping_v6_sendmsg does not set flowi6_oif in response to sin6_scope_id or sk_bound_dev_if, so it is not possible to use these APIs to ping an IPv6 address on a different interface. Instead, it sets flowi6_iif, which is incorrect but harmless. Stop setting flowi6_iif, and support various ways of setting oif in the same priority order used by udpv6_sendmsg. Tested: https://android-review.googlesource.com/#/c/254470/ Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 12311959ecf8a3a64676c01b62ce67a0c5f0fd49 Author: Vegard Nossum <vegard.nossum@oracle.com> Date: Fri Aug 12 20:10:44 2016 +0200 rhashtable: fix shift by 64 when shrinking I got this: ================================================================================ UBSAN: Undefined behaviour in ./include/linux/log2.h:63:13 shift exponent 64 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 721 Comm: kworker/1:1 Not tainted 4.8.0-rc1+ #87 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 Workqueue: events rht_deferred_worker 0000000000000000 ffff88011661f8d8 ffffffff82344f50 0000000041b58ab3 ffffffff84f98000 ffffffff82344ea4 ffff88011661f900 ffff88011661f8b0 0000000000000001 ffff88011661f6b8 dffffc0000000000 ffffffff867f7640 Call Trace: [<ffffffff82344f50>] dump_stack+0xac/0xfc [<ffffffff82344ea4>] ? _atomic_dec_and_lock+0xc4/0xc4 [<ffffffff8242f5b8>] ubsan_epilogue+0xd/0x8a [<ffffffff82430c41>] __ubsan_handle_shift_out_of_bounds+0x255/0x29a [<ffffffff824309ec>] ? __ubsan_handle_out_of_bounds+0x180/0x180 [<ffffffff84003436>] ? nl80211_req_set_reg+0x256/0x2f0 [<ffffffff812112ba>] ? print_context_stack+0x8a/0x160 [<ffffffff81200031>] ? amd_pmu_reset+0x341/0x380 [<ffffffff823af808>] rht_deferred_worker+0x1618/0x1790 [<ffffffff823af808>] ? rht_deferred_worker+0x1618/0x1790 [<ffffffff823ae1f0>] ? rhashtable_jhash2+0x370/0x370 [<ffffffff8134c12d>] ? process_one_work+0x6fd/0x1970 [<ffffffff8134c1cf>] process_one_work+0x79f/0x1970 [<ffffffff8134c12d>] ? process_one_work+0x6fd/0x1970 [<ffffffff8134ba30>] ? try_to_grab_pending+0x4c0/0x4c0 [<ffffffff8134d564>] ? worker_thread+0x1c4/0x1340 [<ffffffff8134d8ff>] worker_thread+0x55f/0x1340 [<ffffffff845e904f>] ? __schedule+0x4df/0x1d40 [<ffffffff8134d3a0>] ? process_one_work+0x1970/0x1970 [<ffffffff8134d3a0>] ? process_one_work+0x1970/0x1970 [<ffffffff813642f7>] kthread+0x237/0x390 [<ffffffff813640c0>] ? __kthread_parkme+0x280/0x280 [<ffffffff845f8c93>] ? _raw_spin_unlock_irq+0x33/0x50 [<ffffffff845f95df>] ret_from_fork+0x1f/0x40 [<ffffffff813640c0>] ? __kthread_parkme+0x280/0x280 ================================================================================ roundup_pow_of_two() is undefined when called with an argument of 0, so let's avoid the call and just fall back to ht->p.min_size (which should never be smaller than HASH_MIN_SIZE). Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> commit eb8fc32354aa77678dc6e7950a8f0c79cace204f Author: Vincent <vincent.stehle@laposte.net> Date: Sun Aug 14 15:38:29 2016 +0200 mlxsw: spectrum_router: Fix use after free In mlxsw_sp_router_fib4_add_info_destroy(), the fib_entry pointer is used after it has been freed by mlxsw_sp_fib_entry_destroy(). Use a temporary variable to fix this. Fixes: 61c503f976b5449e ("mlxsw: spectrum_router: Implement fib4 add/del switchdev obj ops") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: Jiri Pirko <jiri@mellanox.com> Acked-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 4cf0b354d92ee2c642532ee39e330f8f580fd985 Author: Florian Westphal <fw@strlen.de> Date: Fri Aug 12 12:03:52 2016 +0200 rhashtable: avoid large lock-array allocations Sander reports following splat after netfilter nat bysrc table got converted to rhashtable: swapper/0: page allocation failure: order:3, mode:0x2084020(GFP_ATOMIC|__GFP_COMP) CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.8.0-rc1 [..] [<ffffffff811633ed>] warn_alloc_failed+0xdd/0x140 [<ffffffff811638b1>] __alloc_pages_nodemask+0x3e1/0xcf0 [<ffffffff811a72ed>] alloc_pages_current+0x8d/0x110 [<ffffffff8117cb7f>] kmalloc_order+0x1f/0x70 [<ffffffff811aec19>] __kmalloc+0x129/0x140 [<ffffffff8146d561>] bucket_table_alloc+0xc1/0x1d0 [<ffffffff8146da1d>] rhashtable_insert_rehash+0x5d/0xe0 [<ffffffff819fcfff>] nf_nat_setup_info+0x2ef/0x400 The failure happens when allocating the spinlock array. Even with GFP_KERNEL its unlikely for such a large allocation to succeed. Thomas Graf pointed me at inet_ehash_locks_alloc(), so in addition to adding NOWARN for atomic allocations this also makes the bucket-array sizing more conservative. In commit 095dc8e0c3686 ("tcp: fix/cleanup inet_ehash_locks_alloc()"), Eric Dumazet says: "Budget 2 cache lines per cpu worth of 'spinlocks'". IOW, consider size needed by a single spinlock when determining number of locks per cpu. So with 64 byte per cacheline and 4 byte per spinlock this gives 32 locks per cpu. Resulting size of the lock-array (sizeof(spinlock) == 4): cpus: 1 2 4 8 16 32 64 old: 1k 1k 4k 8k 16k 16k 16k new: 128 256 512 1k 2k 4k 8k 8k allocation should have decent chance of success even with GFP_ATOMIC, and should not fail with GFP_KERNEL. With 72-byte spinlock (LOCKDEP): cpus : 1 2 old: 9k 18k new: ~2k ~4k Reported-by: Sander Eikelenboom <linux@eikelenboom.it> Suggested-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net> commit 6be3ffaa0e15c64f560904b025f5c50bef5886f9 Author: Michael S. Tsirkin <mst@redhat.com> Date: Mon Aug 15 04:50:55 2016 +0300 tools/virtio: add dma stubs Fixes build after recent IOMMU-related changes, mustly by adding more stubs. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> commit 446374d7c7f89603d8151b56824e2cac85ed8e0d Author: Michael S. Tsirkin <mst@redhat.com> Date: Mon Aug 15 04:28:12 2016 +0300 vhost/test: fix after swiotlb changes Signed-off-by: Michael S. Tsirkin <mst@redhat.com> commit 21bc54fc0cdc31de72b57d2b3c79cf9c2b83cf39 Author: Gerard Garcia <ggarcia@deic.uab.cat> Date: Wed Aug 10 17:24:34 2016 +0200 vhost/vsock: drop space available check for TX vq Remove unnecessary use of enable/disable callback notifications and the incorrect more space available check. The virtio_transport_tx_work handles when the TX virtqueue has more buffers available. Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> commit 52012619e5a2ca0491426c3712fb9054692d4a3c Author: Michael S. Tsirkin <mst@redhat.com> Date: Sun Aug 14 23:44:21 2016 +0300 ringtest: test build fix Recent changes to ptr_ring broke the ringtest which lacks a likely() stub. Fix it up. Fixes: 982fb490c298896d15e9323a882f34a57c11ff56 ("ptr_ring: support zero length ring") Signed-off-by: Michael S. Tsirkin <mst@redhat.com> commit 952fcfd08c8109951622579d0ae7b9cd6cafd688 Author: Sabrina Dubroca <sd@queasysnail.net> Date: Fri Aug 12 16:10:33 2016 +0200 net: remove type_check from dev_get_nest_level() The idea for type_check in dev_get_nest_level() was to count the number of nested devices of the same type (currently, only macvlan or vlan devices). This prevented the false positive lockdep warning on configurations such as: eth0 <--- macvlan0 <--- vlan0 <--- macvlan1 However, this doesn't prevent a warning on a configuration such as: eth0 <--- macvlan0 <--- vlan0 eth1 <--- vlan1 <--- macvlan1 In this case, all the locks end up with a nesting subclass of 1, so lockdep thinks that there is still a deadlock: - in the first case we have (macvlan_netdev_addr_lock_key, 1) and then take (vlan_netdev_xmit_lock_key, 1) - in the second case, we have (vlan_netdev_xmit_lock_key, 1) and then take (macvlan_netdev_addr_lock_key, 1) By removing the linktype check in dev_get_nest_level() and always incrementing the nesting depth, lockdep considers this configuration valid. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net> commit e20038724552cd05e351cd7d7526d646953d26b7 Author: Sabrina Dubroca <sd@queasysnail.net> Date: Fri Aug 12 16:10:32 2016 +0200 macsec: fix lockdep splats when nesting devices Currently, trying to setup a vlan over a macsec device, or other combinations of devices, triggers a lockdep warning. Use netdev_lockdep_set_classes and ndo_get_lock_subclass, similar to what macvlan does. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net> commit bc561632dddd5af0c4444d919f01cbf6d553aa0a Author: Mike Manning <mmanning@brocade.com> Date: Fri Aug 12 12:02:38 2016 +0100 net: ipv6: Do not keep IPv6 addresses when IPv6 is disabled If IPv6 is disabled when the option is set to keep IPv6 addresses on link down, userspace is unaware of this as there is no such indication via netlink. The solution is to remove the IPv6 addresses in this case, which results in netlink messages indicating removal of addresses in the usual manner. This fix also makes the behavior consistent with the case of having IPv6 disabled first, which stops IPv6 addresses from being added. Fixes: f1705ec197e7 ("net: ipv6: Make address flushing on ifdown optional") Signed-off-by: Mike Manning <mmanning@brocade.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 54236ab09e9696a27baaae693c288920a26e8588 Author: Vegard Nossum <vegard.nossum@oracle.com> Date: Fri Aug 12 09:50:51 2016 +0200 net/sctp: always initialise sctp_ht_iter::start_fail sctp_transport_seq_start() does not currently clear iter->start_fail on success, but relies on it being zero when it is allocated (by seq_open_net()). This can be a problem in the following sequence: open() // allocates iter (and implicitly sets iter->start_fail = 0) read() - iter->start() // fails and sets iter->start_fail = 1 - iter->stop() // doesn't call sctp_transport_walk_stop() (correct) read() again - iter->start() // succeeds, but doesn't change iter->start_fail - iter->stop() // doesn't call sctp_transport_walk_stop() (wrong) We should initialize sctp_ht_iter::start_fail to zero if ->start() succeeds, otherwise it's possible that we leave an old value of 1 there, which will cause ->stop() to not call sctp_transport_walk_stop(), which causes all sorts of problems like not calling rcu_read_unlock() (and preempt_enable()), eventually leading to more warnings like this: BUG: sleeping function called from invalid context at mm/slab.h:388 in_atomic(): 0, irqs_disabled(): 0, pid: 16551, name: trinity-c2 Preemption disabled at:[<ffffffff819bceb6>] rhashtable_walk_start+0x46/0x150 [<ffffffff81149abb>] preempt_count_add+0x1fb/0x280 [<ffffffff83295892>] _raw_spin_lock+0x12/0x40 [<ffffffff819bceb6>] rhashtable_walk_start+0x46/0x150 [<ffffffff82ec665f>] sctp_transport_walk_start+0x2f/0x60 [<ffffffff82edda1d>] sctp_transport_seq_start+0x4d/0x150 [<ffffffff81439e50>] traverse+0x170/0x850 [<ffffffff8143aeec>] seq_read+0x7cc/0x1180 [<ffffffff814f996c>] proc_reg_read+0xbc/0x180 [<ffffffff813d0384>] do_loop_readv_writev+0x134/0x210 [<ffffffff813d2a95>] do_readv_writev+0x565/0x660 [<ffffffff813d6857>] vfs_readv+0x67/0xa0 [<ffffffff813d6c16>] do_preadv+0x126/0x170 [<ffffffff813d710c>] SyS_preadv+0xc/0x10 [<ffffffff8100334c>] do_syscall_64+0x19c/0x410 [<ffffffff83296225>] return_from_SYSCALL_64+0x0/0x6a [<ffffffffffffffff>] 0xffffffffffffffff Notice that this is a subtly different stacktrace from the one in commit 5fc382d875 ("net/sctp: terminate rhashtable walk correctly"). Cc: Xin Long <lucien.xin@gmail.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Acked-By: Neil Horman <nhorman@tuxdriver.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 5ba092efc7ddff040777ae7162f1d195f513571b Author: Vegard Nossum <vegard.nossum@oracle.com> Date: Fri Aug 12 10:29:13 2016 +0200 net/irda: handle iriap_register_lsap() allocation failure If iriap_register_lsap() fails to allocate memory, self->lsap is set to NULL. However, none of the callers handle the failure and irlmp_connect_request() will happily dereference it: iriap_register_lsap: Unable to allocated LSAP! ================================================================================ UBSAN: Undefined behaviour in net/irda/irlmp.c:378:2 member access within null pointer of type 'struct lsap_cb' CPU: 1 PID: 15403 Comm: trinity-c0 Not tainted 4.8.0-rc1+ #81 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 0000000000000000 ffff88010c7e78a8 ffffffff82344f40 0000000041b58ab3 ffffffff84f98000 ffffffff82344e94 ffff88010c7e78d0 ffff88010c7e7880 ffff88010630ad00 ffffffff84a5fae0 ffffffff84d3f5c0 000000000000017a Call Trace: [<ffffffff82344f40>] dump_stack+0xac/0xfc [<ffffffff8242f5a8>] ubsan_epilogue+0xd/0x8a [<ffffffff824302bf>] __ubsan_handle_type_mismatch+0x157/0x411 [<ffffffff83b7bdbc>] irlmp_connect_request+0x7ac/0x970 [<ffffffff83b77cc0>] iriap_connect_request+0xa0/0x160 [<ffffffff83b77f48>] state_s_disconnect+0x88/0xd0 [<ffffffff83b78904>] iriap_do_client_event+0x94/0x120 [<ffffffff83b77710>] iriap_getvaluebyclass_request+0x3e0/0x6d0 [<ffffffff83ba6ebb>] irda_find_lsap_sel+0x1eb/0x630 [<ffffffff83ba90c8>] irda_connect+0x828/0x12d0 [<ffffffff833c0dfb>] SYSC_connect+0x22b/0x340 [<ffffffff833c7e09>] SyS_connect+0x9/0x10 [<ffffffff81007bd3>] do_syscall_64+0x1b3/0x4b0 [<ffffffff845f946a>] entry_SYSCALL64_slow_path+0x25/0x25 ================================================================================ The bug seems to have been around since forever. There's more problems with missing error checks in iriap_init() (and indeed all of irda_init()), but that's a bigger problem that needs very careful review and testing. This patch will fix the most serious bug (as it's easily reached from unprivileged userspace). I have tested my patch with a reproducer. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit c15c0ab12fd62f2b19181d05c62d24bc9fa55a42 Author: Johannes Berg <johannes.berg@intel.com> Date: Fri Aug 12 07:48:21 2016 +0200 ipv6: suppress sparse warnings in IP6_ECN_set_ce() Pass the correct type __wsum to csum_sub() and csum_add(). This doesn't really change anything since __wsum really *is* __be32, but removes the address space warnings from sparse. Cc: Eric Dumazet <edumazet@google.com> Fixes: 34ae6a1aa054 ("ipv6: update skb->csum when CE mark is propagated") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 0ed661d5a48fa6df0b50ae64d27fe759a3ce42cf Author: Daniel Borkmann <daniel@iogearbox.net> Date: Thu Aug 11 21:38:37 2016 +0200 bpf: fix write helpers with regards to non-linear parts Fix the bpf_try_make_writable() helper and all call sites we have in BPF, it's currently defect with regards to skbs when the write_len spans into non-linear parts, no matter if cloned or not. There are multiple issues at once. First, using skb_store_bits() is not correct since even if we have a cloned skb, page frags can still be shared. To really make them private, we need to pull them in via __pskb_pull_tail() first, which also gets us a private head via pskb_expand_head() implicitly. This is for helpers like bpf_skb_store_bytes(), bpf_l3_csum_replace(), bpf_l4_csum_replace(). Really, the only thing reasonable and working here is to call skb_ensure_writable() before any write operation. Meaning, via pskb_may_pull() it makes sure that parts we want to access are pulled in and if not does so plus unclones the skb implicitly. If our write_len still fits the headlen and we're cloned and our header of the clone is not writable, then we need to make a private copy via pskb_expand_head(). skb_store_bits() is a bit misleading and only safe to store into non-linear data in different contexts such as 357b40a18b04 ("[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory"). For above BPF helper functions, it means after fixed bpf_try_make_writable(), we've pulled in enough, so that we operate always based on skb->data. Thus, the call to skb_header_pointer() and skb_store_bits() becomes superfluous. In bpf_skb_store_bytes(), the len check is unnecessary too since it can only pass in maximum of BPF stack size, so adding offset is guaranteed to never overflow. Also bpf_l3/4_csum_replace() helpers must test for proper offset alignment since they use __sum16 pointer for writing resulting csum. The remaining helpers that change skb data not discussed here yet are bpf_skb_vlan_push(), bpf_skb_vlan_pop() and bpf_skb_change_proto(). The vlan helpers internally call either skb_ensure_writable() (pop case) and skb_cow_head() (push case, for head expansion), respectively. Similarly, bpf_skb_proto_xlat() takes care to not mangle page frags. Fixes: 608cd71a9c7c ("tc: bpf: generalize pedit action") Fixes: 91bc4822c3d6 ("tc: bpf: add checksum helpers") Fixes: 3697649ff29e ("bpf: try harder on clones when writing into skb") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> commit e8c2993a4c9fdb0c9e6fc983edd5b52716ce7442 Author: sean.wang@mediatek.com <sean.wang@mediatek.com> Date: Sat Aug 13 19:16:19 2016 +0800 net: ethernet: mediatek: add the missing of_node_put() after node is used done This patch adds the missing of_node_put() after finishing the usage of of_parse_phandle() or of_node_get() used by fixed_phy. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit d7005652cd31dfc5660e1e32bf7e53538ef14987 Author: sean.wang@mediatek.com <sean.wang@mediatek.com> Date: Sat Aug 13 19:16:18 2016 +0800 net: ethernet: mediatek: fixed that initializing u64_stats_sync is missing To fix runtime warning with lockdep is enabled due that u64_stats_sync is not initialized well, so add it. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit b4c0e0c61f81dedc82dda35c287ea149ff98b434 Author: Colin Ian King <colin.king@canonical.com> Date: Thu Aug 11 18:17:22 2016 +0100 calipso: fix resource leak on calipso_genopt failure Currently, if calipso_genopt fails then the error exit path does not free the ipv6_opt_hdr new causing a memory leak. Fix this by kfree'ing new on the error exit path. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit 747ea55e4f78fd980350c39570a986b8c1c3e4aa Author: Daniel Borkmann <daniel@iogearbox.net> Date: Fri Aug 12 22:17:17 2016 +0200 bpf: fix bpf_skb_in_cgroup helper naming While hashing out BPF's current_task_under_cgroup helper bits, it came to discussion that the skb_in_cgroup helper name was suboptimally chosen. Tejun says: So, I think in_cgroup should mean that the object is in that particular cgroup while under_cgroup in the subhierarchy of that cgroup. Let's rename the other subhierarchy test to under too. I think that'd be a lot less confusing going forward. [...] It's more intuitive and gives us the room to implement the real "in" test if ever necessary in the future. Since this touches uapi bits, we need to change this as long as v4.8 is not yet officially released. Thus, change the helper enum and rename related bits. Fixes: 4a482f34afcc ("cgroup: bpf: Add bpf_skb_in_cgroup_proto") Reference: http://patchwork.ozlabs.org/patch/658500/ Suggested-by: Sargun Dhillon <sargun@sargun.me> Suggested-by: Tejun Heo <tj@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> commit 601bbae0bc10d4306857b93d84240b039b3d9a6c Author: Arnd Bergmann <arnd@arndb.de> Date: Wed Aug 10 23:54:08 2016 +0200 dsa: mv88e6xxx: hide unused functions When CONFIG_NET_DSA_HWMON is disabled, we get warnings about two unused functions whose only callers are all inside of an #ifdef: drivers/net/dsa/mv88e6xxx.c:3257:12: 'mv88e6xxx_mdio_page_write' defined but not used [-Werror=unused-function] drivers/net/dsa/mv88e6xxx.c:3244:12: 'mv88e6xxx_mdio_page_read' defined but not used [-Werror=unused-function] This adds another ifdef around the function definitions. The warnings appeared after the functions were marked 'static', but the problem was already there before that. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 57d3231057e9 ("net: dsa: mv88e6xxx: fix style issues") Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit bae170efd6c42bf116f513a1dd07639d68fa71b9 Author: Arvind Yadav <arvind.yadav.cs@gmail.com> Date: Fri Aug 12 20:49:18 2016 +0530 power: reset: hisi-reboot: Unmap region obtained by of_iomap Free memory mapping, if probe is not successful. Fixes: 4a9b37371822 ("power: reset: move hisilicon reboot code") Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit 7a4947cf6f26b7d0a5db260d212f6df41a563d23 Author: Andy Yan <andy.yan@rock-chips.com> Date: Fri Aug 12 18:01:50 2016 +0800 power: reset: reboot-mode: fix build error of missing ioremap/iounmap on UM commit 4fcd504edbf7 ("power: reset: add reboot mode driver") uses api from syscon, and syscon uses ioremap/iounmap which depends on HAS_IOMEM, so let's depend on MFD_SYSCON instead of selecting it directly to avoid the um-allyesconfig like build error on archs that without iomem: drivers/mfd/syscon.c: In function 'of_syscon_register': drivers/mfd/syscon.c:67:9: error: implicit declaration of function 'ioremap' [-Werror=implicit-function-declaration] base = ioremap(res.start, resource_size(&res)); ^ drivers/mfd/syscon.c:67:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] base = ioremap(res.start, resource_size(&res)); ^ drivers/mfd/syscon.c:109:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] iounmap(base); ^ Reported-by: Kbuild test robot <fengguang.wu@intel.com> Fixes: 4fcd504edbf7("power: reset: add reboot mode driver") Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit 5381cfb6f0422da24cfa9da35b0433c0415830e0 Author: Sven Van Asbroeck <thesven73@gmail.com> Date: Fri Aug 12 09:10:27 2016 -0400 power: supply: max17042_battery: fix model download bug. The device's model download function returns the model data as an array of u32s, which is later compared to the reference model data. However, since the latter is an array of u16s, the comparison does not happen correctly, and model verification fails. This in turn breaks the POR initialization sequence. Fixes: 39e7213edc4f3 ("max17042_battery: Support regmap to access device's registers") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Sven Van Asbroeck <TheSven73@googlemail.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> commit bbe11fab0b6c1d113776b2898e085bf4d1fdc607 Author: Sabrina Dubroca <sd@queasysnail.net> Date: Thu Aug 11 15:24:27 2016 +0200 macsec: use after free when deleting the underlying device macsec_notify() loops over the list of macsec devices configured on the underlying device when this device is being removed. This list is part of the rx_handler data. However, macsec_dellink unregisters the rx_handler and frees the rx_handler data when the last macsec device is removed from the underlying device. Add macsec_common_dellink() to delete macsec devices without unregistering the rx_handler and freeing the associated data. Fixes: 960d5848dbf1 ("macsec: fix memory leaks around rx_handler (un)registration") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net> commit 104a493390940e85fb7c840a9fd5214aba5cb3bd Author: Jason Wang <jasowang@redhat.com> Date: Thu Aug 11 18:15:56 2016 +0800 macvtap: fix use after free for skb_array during release We've clean skb_array in macvtap_put_queue() but still try to pop from it during macvtap_sock_destruct(). Fix this use after free by moving the skb array cleanup to macvtap_sock_destruct() instead. Fixes: 362899b8725b ("macvtap: switch to use skb array") Reported-by: Cornelia Huck <cornelia.huck@de.ibm.com> Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit af7752106e4f12b4ee47b4eca3e7ba4bcec6e7e5 Author: Stefan Haberland <sth@linux.vnet.ibm.com> Date: Tue Aug 9 15:58:48 2016 +0200 s390/dasd: fix failing CUIR assignment under LPAR On LPAR the read message buffer command should be executed on the path it was received on otherwise there is a chance that the CUIR assignment might be faulty and the wrong channel path is set online/offline. Fix by setting the path mask accordingly. On z/VM we might not be able to do I/O on this path but there it does not matter on which path the read message buffer command is executed. Therefor implement a retry with an open path mask. Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com> commit 4b5b9ba553f9aa5f484ab972fc9b58061885ceca Author: Martynas Pumputis <martynas@weave.works> Date: Tue Aug 9 16:24:50 2016 +0100 openvswitch: do not ignore netdev errors when creating tunnel vports The creation of a tunnel vport (geneve, gre, vxlan) brings up a corresponding netdev, a multi-step operation which can fail. For example, changing a vxlan vport's netdev state to 'up' binds the vport's socket to a UDP port - if the binding fails (e.g. due to the port being in use), the error is currently ignored giving the appearance that the tunnel vport creation completed successfully. Signed-off-by: Martynas Pumputis <martynas@weave.works> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net> commit dafa6b0db2d62164c5ef81a40312d5ba514126b9 Author: Fabian Frederick <fabf@skynet.be> Date: Wed Aug 10 17:48:36 2016 +0200 net: hns: fix typo in g_gmac_stats_string[] s/gamc/gmac/ Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net> commit 672ca65d9aa8578f382784fe73578cd499664828 Author: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com> Date: Wed Aug 10 14:07:34 2016 +0200 tipc: fix variable dereference before NULL check In commit cf6f7e1d5109 ("tipc: dump monitor attributes"), I dereferenced a pointer before checking if its valid. This is reported by static check Smatch as: net/tipc/monitor.c:733 tipc_nl_add_monitor_peer() warn: variable dereferenced before check 'mon' (see line 731) In this commit, we check for a valid monitor before proceeding with any other operation. Fixes: cf6f7e1d5109 ("tipc: dump monitor attributes") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net> commit e95d0dfb229fffe96dc4c29054f6c7a7302e111e Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Date: Tue Aug 2 18:18:33 2016 +0300 pinctrl: intel: merrifield: Add missed header On x86 builds the absense of <linux/io.h> makes static analyzer and compiler unhappy which fails to build the driver. CHECK drivers/pinctrl/intel/pinctrl-merrifield.c drivers/pinctrl/intel/pinctrl-merrifield.c:518:17: error: undefined identifier 'readl' drivers/pinctrl/intel/pinctrl-merrifield.c:570:17: error: undefined identifier 'readl' drivers/pinctrl/intel/pinctrl-merrifield.c:575:9: error: undefined identifier 'writel' drivers/pinctrl/intel/pinctrl-merrifield.c:645:17: error: undefined identifier 'readl' CC drivers/pinctrl/intel/pinctrl-merrifield.o drivers/pinctrl/intel/pinctrl-merrifield.c: In function ‘mrfld_pin_dbg_show’: drivers/pinctrl/intel/pinctrl-merrifield.c:518:10: error: implicit declaration of function ‘readl’ [-Werror=implicit-function-declaration] value = readl(bufcfg); ^ drivers/pinctrl/intel/pinctrl-merrifield.c: In function ‘mrfld_update_bufcfg’: drivers/pinctrl/intel/pinctrl-merrifield.c:575:2: error: implicit declaration of function ‘writel’ [-Werror=implicit-function-declaration] writel(value, bufcfg); ^ cc1: some warnings being treated as errors Add header to the top of the module. Fixes: 4e80c8f50574 ("pinctrl: intel: Add Intel Merrifield pin controller support") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> commit 8cf4345575a416e6856a6856ac6eaa31ad883126 Author: Agrawal, Nitesh-kumar <Nitesh-kumar.Agrawal@amd.com> Date: Tue Jul 26 08:28:19 2016 +0000 pinctrl/amd: Remove the default de-bounce time In the function amd_gpio_irq_enable() and amd_gpio_direction_input(), remove the code which is setting the default de-bounce time to 2.75ms. The driver code shall use the same settings as specified in BIOS. Any default assignment impacts TouchPad behaviour when the LevelTrig is set to EDGE FALLING. Cc: stable@vger.kernel.org Reviewed-by: Ken Xue <Ken.Xue@amd.com> Signed-off-by: Nitesh Kumar Agrawal <Nitesh-kumar.Agrawal@amd.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> commit b120a3c286520ca465c54e8afa442be10560053b Author: Wei Yongjun <weiyj.lk@gmail.com> Date: Tue Jul 26 14:52:57 2016 +0000 pinctrl: pistachio: Drop pinctrl_unregister for devm_ registered device It's not necessary to unregister pin controller device registered with devm_pinctrl_register() and using pinctrl_unregister() leads to a double free. This is detected by Coccinelle semantic patch. Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> commit 5b236d0fde21d88351420ef0b9a6cb7aeeea0c54 Author: Wei Yongjun <weiyj.lk@gmail.com> Date: Tue Jul 26 14:51:58 2016 +0000 pinctrl: meson: Drop pinctrl_unregister for devm_ registered device It's not necessary to unregister pin controller device registered with devm_pinctrl_register() and using pinctrl_unregister() leads to a double free. This is detected by Coccinelle semantic patch. Fixes: e649f7ec8c5f ("pinctrl: meson: Use devm_pinctrl_register() for pinctrl registration") Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> commit 4da449ae1df9cfeb167e78f250b250eff64bc65e Author: Laura Garcia Liebana <nevola@gmail.com> Date: Tue Aug 9 20:46:16 2016 +0200 netfilter: nft_exthdr: Add size check on u8 nft_exthdr attributes Fix the direct assignment of offset and length attributes included in nft_exthdr structure from u32 data to u8. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> commit c987ff0d3cb37d7fe1ddaa370811dfd9f73643fa Author: Robin Murphy <robin.murphy@arm.com> Date: Tue Aug 9 17:31:35 2016 +0100 iommu/dma: Respect IOMMU aperture when allocating Where a device driver has set a 64-bit DMA mask to indicate the absence of addressing limitations, we still need to ensure that we don't allocate IOVAs beyond the actual input size of the IOMMU. The reported aperture is the most reliable way we have of inferring that input address size, so use that to enforce a hard upper limit where available. Fixes: 0db2e5d18f76 ("iommu: Implem…

[ Upstream commit 5ba092e ] If iriap_register_lsap() fails to allocate memory, self->lsap is set to NULL. However, none of the callers handle the failure and irlmp_connect_request() will happily dereference it: iriap_register_lsap: Unable to allocated LSAP! ================================================================================ UBSAN: Undefined behaviour in net/irda/irlmp.c:378:2 member access within null pointer of type 'struct lsap_cb' CPU: 1 PID: 15403 Comm: trinity-c0 Not tainted 4.8.0-rc1+ torvalds#81 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 0000000000000000 ffff88010c7e78a8 ffffffff82344f40 0000000041b58ab3 ffffffff84f98000 ffffffff82344e94 ffff88010c7e78d0 ffff88010c7e7880 ffff88010630ad00 ffffffff84a5fae0 ffffffff84d3f5c0 000000000000017a Call Trace: [<ffffffff82344f40>] dump_stack+0xac/0xfc [<ffffffff8242f5a8>] ubsan_epilogue+0xd/0x8a [<ffffffff824302bf>] __ubsan_handle_type_mismatch+0x157/0x411 [<ffffffff83b7bdbc>] irlmp_connect_request+0x7ac/0x970 [<ffffffff83b77cc0>] iriap_connect_request+0xa0/0x160 [<ffffffff83b77f48>] state_s_disconnect+0x88/0xd0 [<ffffffff83b78904>] iriap_do_client_event+0x94/0x120 [<ffffffff83b77710>] iriap_getvaluebyclass_request+0x3e0/0x6d0 [<ffffffff83ba6ebb>] irda_find_lsap_sel+0x1eb/0x630 [<ffffffff83ba90c8>] irda_connect+0x828/0x12d0 [<ffffffff833c0dfb>] SYSC_connect+0x22b/0x340 [<ffffffff833c7e09>] SyS_connect+0x9/0x10 [<ffffffff81007bd3>] do_syscall_64+0x1b3/0x4b0 [<ffffffff845f946a>] entry_SYSCALL64_slow_path+0x25/0x25 ================================================================================ The bug seems to have been around since forever. There's more problems with missing error checks in iriap_init() (and indeed all of irda_init()), but that's a bigger problem that needs very careful review and testing. This patch will fix the most serious bug (as it's easily reached from unprivileged userspace). I have tested my patch with a reproducer. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

[ Upstream commit 5ba092e ] If iriap_register_lsap() fails to allocate memory, self->lsap is set to NULL. However, none of the callers handle the failure and irlmp_connect_request() will happily dereference it: iriap_register_lsap: Unable to allocated LSAP! ================================================================================ UBSAN: Undefined behaviour in net/irda/irlmp.c:378:2 member access within null pointer of type 'struct lsap_cb' CPU: 1 PID: 15403 Comm: trinity-c0 Not tainted 4.8.0-rc1+ torvalds#81 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 0000000000000000 ffff88010c7e78a8 ffffffff82344f40 0000000041b58ab3 ffffffff84f98000 ffffffff82344e94 ffff88010c7e78d0 ffff88010c7e7880 ffff88010630ad00 ffffffff84a5fae0 ffffffff84d3f5c0 000000000000017a Call Trace: [<ffffffff82344f40>] dump_stack+0xac/0xfc [<ffffffff8242f5a8>] ubsan_epilogue+0xd/0x8a [<ffffffff824302bf>] __ubsan_handle_type_mismatch+0x157/0x411 [<ffffffff83b7bdbc>] irlmp_connect_request+0x7ac/0x970 [<ffffffff83b77cc0>] iriap_connect_request+0xa0/0x160 [<ffffffff83b77f48>] state_s_disconnect+0x88/0xd0 [<ffffffff83b78904>] iriap_do_client_event+0x94/0x120 [<ffffffff83b77710>] iriap_getvaluebyclass_request+0x3e0/0x6d0 [<ffffffff83ba6ebb>] irda_find_lsap_sel+0x1eb/0x630 [<ffffffff83ba90c8>] irda_connect+0x828/0x12d0 [<ffffffff833c0dfb>] SYSC_connect+0x22b/0x340 [<ffffffff833c7e09>] SyS_connect+0x9/0x10 [<ffffffff81007bd3>] do_syscall_64+0x1b3/0x4b0 [<ffffffff845f946a>] entry_SYSCALL64_slow_path+0x25/0x25 ================================================================================ The bug seems to have been around since forever. There's more problems with missing error checks in iriap_init() (and indeed all of irda_init()), but that's a bigger problem that needs very careful review and testing. This patch will fix the most serious bug (as it's easily reached from unprivileged userspace). I have tested my patch with a reproducer. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz>

We can see that "Short form of movsx, dst_reg = (s8,s16,s32)src_reg" in include/linux/filter.h, additionally, for BPF_ALU64 the value of the destination register is unchanged whereas for BPF_ALU the upper 32 bits of the destination register are zeroed, so it should clear the upper 32 bits for BPF_ALU. [root@linux fedora]# echo 1 > /proc/sys/net/core/bpf_jit_enable [root@linux fedora]# modprobe test_bpf Before: test_bpf: torvalds#81 ALU_MOVSX | BPF_B jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) test_bpf: torvalds#82 ALU_MOVSX | BPF_H jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) After: test_bpf: torvalds#81 ALU_MOVSX | BPF_B jited:1 6 PASS test_bpf: torvalds#82 ALU_MOVSX | BPF_H jited:1 6 PASS By the way, the bpf selftest case "./test_progs -t verifier_movsx" can also be fixed with this patch. Fixes: f48012f ("LoongArch: BPF: Support sign-extension mov instructions") Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

We can see that "Short form of movsx, dst_reg = (s8,s16,s32)src_reg" in include/linux/filter.h, additionally, for BPF_ALU64 the value of the destination register is unchanged whereas for BPF_ALU the upper 32 bits of the destination register are zeroed, so it should clear the upper 32 bits for BPF_ALU. [root@linux fedora]# echo 1 > /proc/sys/net/core/bpf_jit_enable [root@linux fedora]# modprobe test_bpf Before: test_bpf: #81 ALU_MOVSX | BPF_B jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) test_bpf: #82 ALU_MOVSX | BPF_H jited:1 ret 2 != 1 (0x2 != 0x1)FAIL (1 times) After: test_bpf: #81 ALU_MOVSX | BPF_B jited:1 6 PASS test_bpf: #82 ALU_MOVSX | BPF_H jited:1 6 PASS By the way, the bpf selftest case "./test_progs -t verifier_movsx" can also be fixed with this patch. Fixes: f48012f ("LoongArch: BPF: Support sign-extension mov instructions") Acked-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

scx_rusty: doc comment update

KSAN calls into rcu code which then triggers a write that reenters into KSAN getting the system stuck doing infinite recursion. #0 kmsan_get_context () at mm/kmsan/kmsan.h:106 #1 __msan_get_context_state () at mm/kmsan/instrumentation.c:331 #2 0xffffffff81495671 in get_current () at ./arch/x86/include/asm/current.h:42 #3 rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 #4 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 #5 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#6 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#7 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#8 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#9 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#10 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#11 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#12 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#13 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#14 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#15 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#16 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#17 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#18 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#19 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#20 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#21 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#22 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#23 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#24 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#25 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#26 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#27 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#28 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#29 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#30 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#31 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#32 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#33 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#34 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#35 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#36 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#37 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#38 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#39 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#40 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#41 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#42 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#43 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#44 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#45 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#46 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#47 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#48 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#49 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#50 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#51 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 #52 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 #53 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#54 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#55 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#56 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#57 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 #58 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#59 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#60 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#61 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#62 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#63 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#64 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#65 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#66 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#67 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#68 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#69 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 #70 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#71 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#72 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#73 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#74 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#75 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#76 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#77 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff86203c90) at ./arch/x86/include/asm/kmsan.h:82 torvalds#78 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff86203c90) at mm/kmsan/shadow.c:75 torvalds#79 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff86203c90, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#80 kmsan_get_shadow_origin_ptr (address=0xffffffff86203c90, size=8, store=false) at mm/kmsan/shadow.c:97 torvalds#81 0xffffffff81b1dc72 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=8, store=false) at mm/kmsan/instrumentation.c:36 torvalds#82 __msan_metadata_ptr_for_load_8 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:92 torvalds#83 0xffffffff814fdb9e in filter_irq_stacks (entries=<optimized out>, nr_entries=4) at kernel/stacktrace.c:397 torvalds#84 0xffffffff829520e8 in stack_depot_save_flags (entries=0xffffffff8620d974 <init_task+1012>, nr_entries=4, alloc_flags=0, depot_flags=0) at lib/stackdepot.c:500 torvalds#85 0xffffffff81b1e560 in __msan_poison_alloca (address=0xffffffff86203da0, size=24, descr=<optimized out>) at mm/kmsan/instrumentation.c:285 torvalds#86 0xffffffff8562821c in _printk (fmt=0xffffffff85f191a5 "\0016Attempting lock1") at kernel/printk/printk.c:2324 torvalds#87 0xffffffff81942aa2 in kmem_cache_create_usercopy (name=0xffffffff85f18903 "mm_struct", size=1296, align=0, flags=270336, useroffset=<optimized out>, usersize=<optimized out>, ctor=0x0 <fixed_percpu_data>) at mm/slab_common.c:296 torvalds#88 0xffffffff86f337a0 in mm_cache_init () at kernel/fork.c:3262 torvalds#89 0xffffffff86eacb8e in start_kernel () at init/main.c:932 torvalds#90 0xffffffff86ecdf94 in x86_64_start_reservations (real_mode_data=0x140e0 <exception_stacks+28896> <error: Cannot access memory at address 0x140e0>) at arch/x86/kernel/head64.c:555 torvalds#91 0xffffffff86ecde9b in x86_64_start_kernel (real_mode_data=0x140e0 <exception_stacks+28896> <error: Cannot access memory at address 0x140e0>) at arch/x86/kernel/head64.c:536 torvalds#92 0xffffffff810001d3 in secondary_startup_64 () at /pool/workspace/linux/arch/x86/kernel/head_64.S:461 torvalds#93 0x0000000000000000 in ??

As of 5ec8e8e(mm/sparsemem: fix race in accessing memory_section->usage) KMSAN now calls into RCU tree code during kmsan_get_metadata. This will trigger a write that will reenter into KMSAN getting the system stuck doing infinite recursion. #0 kmsan_get_context () at mm/kmsan/kmsan.h:106 #1 __msan_get_context_state () at mm/kmsan/instrumentation.c:331 #2 0xffffffff81495671 in get_current () at ./arch/x86/include/asm/current.h:42 #3 rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 #4 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 #5 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#6 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#7 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#8 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#9 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#10 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#11 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#12 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#13 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#14 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#15 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#16 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#17 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#18 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#19 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#20 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#21 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#22 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#23 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#24 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#25 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#26 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#27 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#28 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#29 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#30 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#31 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#32 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#33 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#34 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#35 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#36 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#37 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#38 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#39 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#40 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#41 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#42 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#43 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#44 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#45 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#46 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#47 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#48 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#49 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#50 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#51 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 #52 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 #53 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#54 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#55 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#56 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#57 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 #58 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#59 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#60 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#61 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#62 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#63 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#64 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#65 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#66 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#67 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff8620d974 <init_task+1012>) at ./arch/x86/include/asm/kmsan.h:82 torvalds#68 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/shadow.c:75 torvalds#69 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff8620d974 <init_task+1012>, is_origin=false) at mm/kmsan/shadow.c:143 #70 kmsan_get_shadow_origin_ptr (address=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/shadow.c:97 torvalds#71 0xffffffff81b1dbd2 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=4, store=false) at mm/kmsan/instrumentation.c:36 torvalds#72 __msan_metadata_ptr_for_load_4 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:91 torvalds#73 0xffffffff8149568f in rcu_preempt_read_enter () at kernel/rcu/tree_plugin.h:379 torvalds#74 __rcu_read_lock () at kernel/rcu/tree_plugin.h:402 torvalds#75 0xffffffff81b2054b in rcu_read_lock () at ./include/linux/rcupdate.h:748 torvalds#76 pfn_valid (pfn=<optimized out>) at ./include/linux/mmzone.h:2016 torvalds#77 kmsan_virt_addr_valid (addr=addr@entry=0xffffffff86203c90) at ./arch/x86/include/asm/kmsan.h:82 torvalds#78 virt_to_page_or_null (vaddr=vaddr@entry=0xffffffff86203c90) at mm/kmsan/shadow.c:75 torvalds#79 0xffffffff81b2023c in kmsan_get_metadata (address=0xffffffff86203c90, is_origin=false) at mm/kmsan/shadow.c:143 torvalds#80 kmsan_get_shadow_origin_ptr (address=0xffffffff86203c90, size=8, store=false) at mm/kmsan/shadow.c:97 torvalds#81 0xffffffff81b1dc72 in get_shadow_origin_ptr (addr=0xffffffff8620d974 <init_task+1012>, size=8, store=false) at mm/kmsan/instrumentation.c:36 torvalds#82 __msan_metadata_ptr_for_load_8 (addr=0xffffffff8620d974 <init_task+1012>) at mm/kmsan/instrumentation.c:92 torvalds#83 0xffffffff814fdb9e in filter_irq_stacks (entries=<optimized out>, nr_entries=4) at kernel/stacktrace.c:397 torvalds#84 0xffffffff829520e8 in stack_depot_save_flags (entries=0xffffffff8620d974 <init_task+1012>, nr_entries=4, alloc_flags=0, depot_flags=0) at lib/stackdepot.c:500 torvalds#85 0xffffffff81b1e560 in __msan_poison_alloca (address=0xffffffff86203da0, size=24, descr=<optimized out>) at mm/kmsan/instrumentation.c:285 torvalds#86 0xffffffff8562821c in _printk (fmt=0xffffffff85f191a5 "\0016Attempting lock1") at kernel/printk/printk.c:2324 torvalds#87 0xffffffff81942aa2 in kmem_cache_create_usercopy (name=0xffffffff85f18903 "mm_struct", size=1296, align=0, flags=270336, useroffset=<optimized out>, usersize=<optimized out>, ctor=0x0 <fixed_percpu_data>) at mm/slab_common.c:296 torvalds#88 0xffffffff86f337a0 in mm_cache_init () at kernel/fork.c:3262 torvalds#89 0xffffffff86eacb8e in start_kernel () at init/main.c:932 torvalds#90 0xffffffff86ecdf94 in x86_64_start_reservations (real_mode_data=0x140e0 <exception_stacks+28896> <error: Cannot access memory at address 0x140e0>) at arch/x86/kernel/head64.c:555 torvalds#91 0xffffffff86ecde9b in x86_64_start_kernel (real_mode_data=0x140e0 <exception_stacks+28896> <error: Cannot access memory at address 0x140e0>) at arch/x86/kernel/head64.c:536 torvalds#92 0xffffffff810001d3 in secondary_startup_64 () at /pool/workspace/linux/arch/x86/kernel/head_64.S:461 torvalds#93 0x0000000000000000 in ??

Current 'bpftool link' command does not show pids, e.g., $ tools/build/bpftool/bpftool link ... 4: tracing prog 23 prog_type lsm attach_type lsm_mac target_obj_id 1 target_btf_id 31320 Hack the following change to enable normal libbpf debug output, --- a/tools/bpf/bpftool/pids.c +++ b/tools/bpf/bpftool/pids.c @@ -121,9 +121,9 @@ int build_obj_refs_table(struct hashmap **map, enum bpf_obj_type type) /* we don't want output polluted with libbpf errors if bpf_iter is not * supported */ - default_print = libbpf_set_print(libbpf_print_none); + /* default_print = libbpf_set_print(libbpf_print_none); */ err = pid_iter_bpf__load(skel); - libbpf_set_print(default_print); + /* libbpf_set_print(default_print); */ Rerun the above bpftool command: $ tools/build/bpftool/bpftool link libbpf: prog 'iter': BPF program load failed: Permission denied libbpf: prog 'iter': -- BEGIN PROG LOAD LOG -- 0: R1=ctx() R10=fp0 ; struct task_struct *task = ctx->task; @ pid_iter.bpf.c:69 0: (79) r6 = *(u64 *)(r1 +8) ; R1=ctx() R6_w=ptr_or_null_task_struct(id=1) ; struct file *file = ctx->file; @ pid_iter.bpf.c:68 ... ; struct bpf_link *link = (struct bpf_link *) file->private_data; @ pid_iter.bpf.c:103 80: (79) r3 = *(u64 *)(r8 +432) ; R3_w=scalar() R8=ptr_file() ; if (link->type == bpf_core_enum_value(enum bpf_link_type___local, @ pid_iter.bpf.c:105 81: (61) r1 = *(u32 *)(r3 +12) R3 invalid mem access 'scalar' processed 39 insns (limit 1000000) max_states_per_insn 0 total_states 3 peak_states 3 mark_read 2 -- END PROG LOAD LOG -- libbpf: prog 'iter': failed to load: -13 ... The 'file->private_data' returns a 'void' type and this caused subsequent 'link->type' (insn torvalds#81) failed in verification. To fix the issue, restore the previous BPF_CORE_READ so old kernels can also work. With this patch, the 'bpftool link' runs successfully with 'pids'. $ tools/build/bpftool/bpftool link ... 4: tracing prog 23 prog_type lsm attach_type lsm_mac target_obj_id 1 target_btf_id 31320 pids systemd(1) Fixes: 44ba7b3 ("bpftool: Use a local copy of BPF_LINK_TYPE_PERF_EVENT in pid_iter.bpf.c") Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Quentin Monnet <quentin@isovalent.com> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20240312023249.3776718-1-yonghong.song@linux.dev

[ Upstream commit fe879bb ] Current 'bpftool link' command does not show pids, e.g., $ tools/build/bpftool/bpftool link ... 4: tracing prog 23 prog_type lsm attach_type lsm_mac target_obj_id 1 target_btf_id 31320 Hack the following change to enable normal libbpf debug output, --- a/tools/bpf/bpftool/pids.c +++ b/tools/bpf/bpftool/pids.c @@ -121,9 +121,9 @@ int build_obj_refs_table(struct hashmap **map, enum bpf_obj_type type) /* we don't want output polluted with libbpf errors if bpf_iter is not * supported */ - default_print = libbpf_set_print(libbpf_print_none); + /* default_print = libbpf_set_print(libbpf_print_none); */ err = pid_iter_bpf__load(skel); - libbpf_set_print(default_print); + /* libbpf_set_print(default_print); */ Rerun the above bpftool command: $ tools/build/bpftool/bpftool link libbpf: prog 'iter': BPF program load failed: Permission denied libbpf: prog 'iter': -- BEGIN PROG LOAD LOG -- 0: R1=ctx() R10=fp0 ; struct task_struct *task = ctx->task; @ pid_iter.bpf.c:69 0: (79) r6 = *(u64 *)(r1 +8) ; R1=ctx() R6_w=ptr_or_null_task_struct(id=1) ; struct file *file = ctx->file; @ pid_iter.bpf.c:68 ... ; struct bpf_link *link = (struct bpf_link *) file->private_data; @ pid_iter.bpf.c:103 80: (79) r3 = *(u64 *)(r8 +432) ; R3_w=scalar() R8=ptr_file() ; if (link->type == bpf_core_enum_value(enum bpf_link_type___local, @ pid_iter.bpf.c:105 81: (61) r1 = *(u32 *)(r3 +12) R3 invalid mem access 'scalar' processed 39 insns (limit 1000000) max_states_per_insn 0 total_states 3 peak_states 3 mark_read 2 -- END PROG LOAD LOG -- libbpf: prog 'iter': failed to load: -13 ... The 'file->private_data' returns a 'void' type and this caused subsequent 'link->type' (insn torvalds#81) failed in verification. To fix the issue, restore the previous BPF_CORE_READ so old kernels can also work. With this patch, the 'bpftool link' runs successfully with 'pids'. $ tools/build/bpftool/bpftool link ... 4: tracing prog 23 prog_type lsm attach_type lsm_mac target_obj_id 1 target_btf_id 31320 pids systemd(1) Fixes: 44ba7b3 ("bpftool: Use a local copy of BPF_LINK_TYPE_PERF_EVENT in pid_iter.bpf.c") Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Quentin Monnet <quentin@isovalent.com> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20240312023249.3776718-1-yonghong.song@linux.dev Signed-off-by: Sasha Levin <sashal@kernel.org>

[ Upstream commit fe879bb ] Current 'bpftool link' command does not show pids, e.g., $ tools/build/bpftool/bpftool link ... 4: tracing prog 23 prog_type lsm attach_type lsm_mac target_obj_id 1 target_btf_id 31320 Hack the following change to enable normal libbpf debug output, # --- a/tools/bpf/bpftool/pids.c # +++ b/tools/bpf/bpftool/pids.c # @@ -121,9 +121,9 @@ int build_obj_refs_table(struct hashmap **map, enum bpf_obj_type type) # /* we don't want output polluted with libbpf errors if bpf_iter is not # * supported # */ # - default_print = libbpf_set_print(libbpf_print_none); # + /* default_print = libbpf_set_print(libbpf_print_none); */ # err = pid_iter_bpf__load(skel); # - libbpf_set_print(default_print); # + /* libbpf_set_print(default_print); */ Rerun the above bpftool command: $ tools/build/bpftool/bpftool link libbpf: prog 'iter': BPF program load failed: Permission denied libbpf: prog 'iter': -- BEGIN PROG LOAD LOG -- 0: R1=ctx() R10=fp0 ; struct task_struct *task = ctx->task; @ pid_iter.bpf.c:69 0: (79) r6 = *(u64 *)(r1 +8) ; R1=ctx() R6_w=ptr_or_null_task_struct(id=1) ; struct file *file = ctx->file; @ pid_iter.bpf.c:68 ... ; struct bpf_link *link = (struct bpf_link *) file->private_data; @ pid_iter.bpf.c:103 80: (79) r3 = *(u64 *)(r8 +432) ; R3_w=scalar() R8=ptr_file() ; if (link->type == bpf_core_enum_value(enum bpf_link_type___local, @ pid_iter.bpf.c:105 81: (61) r1 = *(u32 *)(r3 +12) R3 invalid mem access 'scalar' processed 39 insns (limit 1000000) max_states_per_insn 0 total_states 3 peak_states 3 mark_read 2 -- END PROG LOAD LOG -- libbpf: prog 'iter': failed to load: -13 ... The 'file->private_data' returns a 'void' type and this caused subsequent 'link->type' (insn torvalds#81) failed in verification. To fix the issue, restore the previous BPF_CORE_READ so old kernels can also work. With this patch, the 'bpftool link' runs successfully with 'pids'. $ tools/build/bpftool/bpftool link ... 4: tracing prog 23 prog_type lsm attach_type lsm_mac target_obj_id 1 target_btf_id 31320 pids systemd(1) Fixes: 44ba7b3 ("bpftool: Use a local copy of BPF_LINK_TYPE_PERF_EVENT in pid_iter.bpf.c") Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Quentin Monnet <quentin@isovalent.com> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20240312023249.3776718-1-yonghong.song@linux.dev Signed-off-by: Sasha Levin <sashal@kernel.org>

Performing the hash of an empty file leads to a kernel Oops [ 44.504600] Unable to handle kernel paging request for data at address 0x0000000c [ 44.512819] Faulting instruction address: 0xc02d2be8 [ 44.524088] Oops: Kernel access of bad area, sig: 11 [$1] [ 44.529171] BE PREEMPT CMPC885 [ 44.532232] CPU: 0 PID: 491 Comm: md5sum Not tainted 4.15.0-rc8-00211-g3a968610b6ea torvalds#81 [ 44.540814] NIP: c02d2be8 LR: c02d2984 CTR: 00000000 [ 44.545812] REGS: c6813c90 TRAP: 0300 Not tainted (4.15.0-rc8-00211-g3a968610b6ea) [ 44.554223] MSR: 00009032 <EE,ME,IR,DR,RI> CR: 48222822 XER: 20000000 [ 44.560855] DAR: 0000000c DSISR: c0000000 [ 44.560855] GPR00: c02d28fc c6813d40 c6828000 c646fa40 00000001 00000001 00000001 00000000 [ 44.560855] GPR08: 0000004c 00000000 c000bfcc 00000000 28222822 100280d4 00000000 10020008 [ 44.560855] GPR16: 00000000 00000020 00000000 00000000 10024008 00000000 c646f9f0 c6179a10 [ 44.560855] GPR24: 00000000 00000001 c62f0018 c6179a10 00000000 c6367a30 c62f0000 c646f9c0 [ 44.598542] NIP [c02d2be8] ahash_process_req+0x448/0x700 [ 44.603751] LR [c02d2984] ahash_process_req+0x1e4/0x700 [ 44.608868] Call Trace: [ 44.611329] [c6813d40] [c02d28fc] ahash_process_req+0x15c/0x700 (unreliable) [ 44.618302] [c6813d90] [c02060c4] hash_recvmsg+0x11c/0x210 [ 44.623716] [c6813db0] [c0331354] ___sys_recvmsg+0x98/0x138 [ 44.629226] [c6813eb0] [c03332c0] __sys_recvmsg+0x40/0x84 [ 44.634562] [c6813f10] [c03336c0] SyS_socketcall+0xb8/0x1d4 [ 44.640073] [c6813f40] [c000d1ac] ret_from_syscall+0x0/0x38 [ 44.645530] Instruction dump: [ 44.648465] 38c00001 7f63db78 4e800421 7c791b78 54690ffe 0f090000 80ff0190 2f870000 [ 44.656122] 40befe50 2f990001 409e0210 813f01bc <8129000c> b39e003a 7d29c214 913e003c This patch fixes that Oops by checking if src is NULL. Fixes: 6a1e8d1 ("crypto: talitos - making mapping helpers more generic") Cc: <stable@vger.kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [#131144]

pmd_leaf()/pud_leaf() only implies a pmd_present()/pud_present() check on some architectures. We really should check for pmd_present()/pud_present() first. This should explain the report we got on ppc64 (which has CONFIG_PGTABLE_HAS_HUGE_LEAVES set in the config) that triggered: VM_WARN_ON_ONCE(pmd_leaf(pmdp_get_lockless(pmdp))); Likely we had a PMD migration entry for which pmd_leaf() did not trigger. We raced with restoring the PMD migration entry, and suddenly saw a pmd_leaf(). In this case, pte_offset_map_lock() saved us from more trouble, because it rechecks the PMD value, but we would not have processed the migration entry -- which is not too bad because the only user of FW_MIGRATION is KSM for unsharing, and KSM only applies to small folios. Further, we shouldn't re-read the PMD/PUD value for our warning, the primary purpose of the VM_WARN_ON_ONCE() is to find spurious use of pmd_leaf()/pud_leaf() without CONFIG_PGTABLE_HAS_HUGE_LEAVES. As a side note, we are currently not implementing FW_MIGRATION support for PUD migration entries, which likely should exist due to hugetlb. Add a TODO so this won't fall through the cracks if more FW_MIGRATION users get added. Was able to write a quick reproducer and verify that the issue no longer triggers with this fix. https://gitlab.com/davidhildenbrand/scratchspace/-/blob/main/reproducers/move-pages-pmd-leaf.c Without this fix after a couple of seconds in a VM with 2 NUMA nodes: [ 54.333753] ------------[ cut here ]------------ [ 54.334901] WARNING: CPU: 20 PID: 1704 at mm/pagewalk.c:815 folio_walk_start+0x48f/0x6e0 [ 54.336455] Modules linked in: ... [ 54.345009] CPU: 20 UID: 0 PID: 1704 Comm: move-pages-pmd- Not tainted 6.12.0-rc2+ torvalds#81 [ 54.346529] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014 [ 54.348191] RIP: 0010:folio_walk_start+0x48f/0x6e0 [ 54.349134] Code: b5 ad 48 8d 35 00 00 00 00 e8 6d 59 d7 ff e8 08 74 da ff e9 9c fe ff ff 4c 8b 7c 24 08 4c 89 ff e8 26 2b be 00 e9 8a fe ff ff <0f> 0b e9 ec fe ff ff f7 c2 ff 0f 00 00 0f 85 81 fe ff ff 48 8b 02 [ 54.352660] RSP: 0018:ffffb7e4c430bc78 EFLAGS: 00010282 [ 54.353679] RAX: 80000002a3e008e7 RBX: ffff9946039aa580 RCX: ffff994380000000 [ 54.355056] RDX: ffff994606aec000 RSI: 00007f004b000000 RDI: 0000000000000000 [ 54.356440] RBP: 00007f004b000000 R08: 0000000000000591 R09: 0000000000000001 [ 54.357820] R10: 0000000000000200 R11: 0000000000000001 R12: ffffb7e4c430bd10 [ 54.359198] R13: ffff994606aec2c0 R14: 0000000000000002 R15: ffff994604a89b00 [ 54.360564] FS: 00007f004ae006c0(0000) GS:ffff9947f7400000(0000) knlGS:0000000000000000 [ 54.362111] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.363242] CR2: 00007f004adffe58 CR3: 0000000281e12005 CR4: 0000000000770ef0 [ 54.364615] PKRU: 55555554 [ 54.365153] Call Trace: [ 54.365646] <TASK> [ 54.366073] ? __warn.cold+0xb7/0x14d [ 54.366796] ? folio_walk_start+0x48f/0x6e0 [ 54.367628] ? report_bug+0xff/0x140 [ 54.368324] ? handle_bug+0x58/0x90 [ 54.369019] ? exc_invalid_op+0x17/0x70 [ 54.369771] ? asm_exc_invalid_op+0x1a/0x20 [ 54.370606] ? folio_walk_start+0x48f/0x6e0 [ 54.371415] ? folio_walk_start+0x9e/0x6e0 [ 54.372227] do_pages_move+0x1c5/0x680 [ 54.372972] kernel_move_pages+0x1a1/0x2b0 [ 54.373804] __x64_sys_move_pages+0x25/0x30 Link: https://lkml.kernel.org/r/20241015111236.1290921-1-david@redhat.com Fixes: aa39ca6 ("mm/pagewalk: introduce folio_walk_start() + folio_walk_end()") Signed-off-by: David Hildenbrand <david@redhat.com> Reported-by: syzbot+7d917f67c05066cec295@syzkaller.appspotmail.com Closes: https://lkml.kernel.org/r/670d3248.050a0220.3e960.0064.GAE@google.com Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Jann Horn <jannh@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

facebook functionality

4651d70

allows users to login to linux with facebook

logic10492 pushed a commit to logic10492/linux-amd-zen2 that referenced this pull request Jan 18, 2024

Merge pull request torvalds#81 from sched-ext/scx-cleanups-from-split

c818dc5

scx_rusty: doc comment update

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facebook functionality #81

facebook functionality #81

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facebook functionality #81

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facebook functionality #81

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raincoats commented Mar 18, 2014

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ghost commented Mar 18, 2014

enedil commented Mar 18, 2014

metemaddar commented Mar 18, 2014

jesus-ramos commented Mar 18, 2014

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