Merge tag 'lts-v5.4.61-yocto-200907T010133Z' into lts2019/preempt-rt

Creating tag for lts-v5.4.61-yocto-200907T010133Z * tag 'lts-v5.4.61-yocto-200907T010133Z': ASoC: codec: tlv3204: Enable TDM audio support ASoC: Intel: KMB: Enable DMA transfer mode ASoC: Intel: KMB: Enable TDM mode tcc: l3 psram region size could become zero after exclude l2 inclusive regions tcc: update tcc range end_address. Change pr_info to pr_debug in vpusmm_session_ptr2vpu Linux 5.4.61 KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set KVM: Pass MMU notifier range flags to kvm_unmap_hva_range() xen: don't reschedule in preemption off sections mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible do_epoll_ctl(): clean the failure exits up a bit epoll: Keep a reference on files added to the check list efi: add missed destroy_workqueue when efisubsys_init fails powerpc/pseries: Do not initiate shutdown when system is running on UPS net: dsa: b53: check for timeout hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit() net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe() net: ena: Prevent reset after device destruction bonding: fix active-backup failover for current ARP slave ARM64: vdso32: Install vdso32 from vdso_install afs: Fix NULL deref in afs_dynroot_depopulate() RDMA/bnxt_re: Do not add user qps to flushlist Fix build error when CONFIG_ACPI is not set/enabled: efi: avoid error message when booting under Xen kconfig: qconf: fix signal connection to invalid slots kconfig: qconf: do not limit the pop-up menu to the first row Revert "scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe" kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode vfio/type1: Add proper error unwind for vfio_iommu_replay() ASoC: intel: Fix memleak in sst_media_open ASoC: msm8916-wcd-analog: fix register Interrupt offset s390/ptrace: fix storage key handling s390/runtime_instrumentation: fix storage key handling bonding: fix a potential double-unregister can: j1939: add rxtimer for multipacket broadcast session can: j1939: abort multipacket broadcast session when timeout occurs can: j1939: cancel rxtimer on multipacket broadcast session complete can: j1939: fix support for multipacket broadcast message bonding: show saner speed for broadcast mode net: fec: correct the error path for regulator disable in probe i40e: Fix crash during removing i40e driver i40e: Set RX_ONLY mode for unicast promiscuous on VLAN can: j1939: transport: add j1939_session_skb_find_by_offset() function can: j1939: transport: j1939_simple_recv(): ignore local J1939 messages send not by J1939 stack can: j1939: fix kernel-infoleak in j1939_sk_sock2sockaddr_can() bpf: sock_ops sk access may stomp registers when dst_reg = src_reg ASoC: q6routing: add dummy register read/write function ASoC: q6afe-dai: mark all widgets registers as SND_SOC_NOPM spi: stm32: fixes suspend/resume management netfilter: nf_tables: nft_exthdr: the presence return value should be little-endian ext4: don't allow overlapping system zones ext4: fix potential negative array index in do_split() fs/signalfd.c: fix inconsistent return codes for signalfd4 alpha: fix annotation of io{read,write}{16,32}be() xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init tools/testing/selftests/cgroup/cgroup_util.c: cg_read_strcmp: fix null pointer dereference media: camss: fix memory leaks on error handling paths in probe virtio_ring: Avoid loop when vq is broken in virtqueue_poll scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases cpufreq: intel_pstate: Fix cpuinfo_max_freq when MSR_TURBO_RATIO_LIMIT is 0 swiotlb-xen: use vmalloc_to_page on vmalloc virt addresses ceph: fix use-after-free for fsc->mdsc jffs2: fix UAF problem drm/ttm: fix offset in VMAs with a pg_offs in ttm_bo_vm_access xfs: fix inode quota reservation checks svcrdma: Fix another Receive buffer leak m68knommu: fix overwriting of bits in ColdFire V3 cache control MIPS: Fix unable to reserve memory for Crash kernel Input: psmouse - add a newline when printing 'proto' by sysfs media: vpss: clean up resources in init rtc: goldfish: Enable interrupt in set_alarm() when necessary media: budget-core: Improve exception handling in budget_register() scsi: target: tcmu: Fix crash in tcmu_flush_dcache_range on ARM scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices opp: Enable resources again if they were disabled earlier kthread: Do not preempt current task if it is going to call schedule() drm/amd/display: fix pow() crashing when given base 0 drm/amd/display: Fix EDID parsing after resume from suspend drm/amdgpu/display: use GFP_ATOMIC in dcn20_validate_bandwidth_internal scsi: zfcp: Fix use-after-free in request timeout handlers jbd2: add the missing unlock_buffer() in the error path of jbd2_write_superblock() ext4: fix checking of directory entry validity for inline directories RDMA/hfi1: Correct an interlock issue for TID RDMA WRITE request mm, page_alloc: fix core hung in free_pcppages_bulk() mm: include CMA pages in lowmem_reserve at boot uprobes: __replace_page() avoid BUG in munlock_vma_page() kernel/relay.c: fix memleak on destroy relay channel romfs: fix uninitialized memory leak in romfs_dev_read() spi: Prevent adding devices below an unregistering controller can: j1939: socket: j1939_sk_bind(): make sure ml_priv is allocated can: j1939: transport: j1939_session_tx_dat(): fix use-after-free read in j1939_tp_txtimer() ALSA: hda/realtek: Add quirk for Samsung Galaxy Book Ion ALSA: hda/realtek: Add quirk for Samsung Galaxy Flex Book btrfs: add wrapper for transaction abort predicate btrfs: return EROFS for BTRFS_FS_STATE_ERROR cases btrfs: don't show full path of bind mounts in subvol= btrfs: export helpers for subvolume name/id resolution bcache: avoid nr_stripes overflow in bcache_device_init() khugepaged: adjust VM_BUG_ON_MM() in __khugepaged_enter() khugepaged: khugepaged_test_exit() check mmget_still_valid() perf probe: Fix memory leakage when the probe point is not found gfs2: Never call gfs2_block_zero_range with an open transaction gfs2: Improve mmap write vs. punch_hole consistency drm/vgem: Replace opencoded version of drm_gem_dumb_map_offset() kbuild: support LLVM=1 to switch the default tools to Clang/LLVM kbuild: replace AS=clang with LLVM_IAS=1 kbuild: remove AS variable kbuild: remove PYTHON2 variable x86/boot: kbuild: allow readelf executable to be specified net: wan: wanxl: use $(M68KCC) instead of $(M68KAS) for rebuilding firmware net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware Documentation/llvm: fix the name of llvm-size Documentation/llvm: add documentation on building w/ Clang/LLVM Linux 5.4.60 drm/amd/display: dchubbub p-state warning during surface planes switch drm/amdgpu: Fix bug where DPM is not enabled after hibernate and resume drm: fix drm_dp_mst_port refcount leaks in drm_dp_mst_allocate_vcpi drm: Added orientation quirk for ASUS tablet model T103HAF drm/panfrost: Use kvfree() to free bo->sgts arm64: dts: marvell: espressobin: add ethernet alias khugepaged: retract_page_tables() remember to test exit sh: landisk: Add missing initialization of sh_io_port_base perf/x86/rapl: Fix missing psys sysfs attributes tools build feature: Quote CC and CXX for their arguments perf bench mem: Always memset source before memcpy ALSA: echoaudio: Fix potential Oops in snd_echo_resume() crypto: algif_aead - fix uninitialized ctx->init mfd: dln2: Run event handler loop under spinlock i2c: iproc: fix race between client unreg and isr test_kmod: avoid potential double free in trigger_config_run_type() fs/ufs: avoid potential u32 multiplication overflow fs/minix: remove expected error message in block_to_path() fs/minix: fix block limit check for V1 filesystems fs/minix: set s_maxbytes correctly nfs: Fix getxattr kernel panic and memory overflow net: qcom/emac: add missed clk_disable_unprepare in error path of emac_clks_phase1_init drm/vmwgfx: Fix two list_for_each loop exit tests drm/vmwgfx: Use correct vmw_legacy_display_unit pointer recordmcount: Fix build failure on non arm64 Input: sentelic - fix error return when fsp_reg_write fails x86/tsr: Fix tsc frequency enumeration bug on Lightning Mountain SoC md-cluster: Fix potential error pointer dereference in resize_bitmaps() watchdog: initialize device before misc_register nfs: nfs_file_write() should check for writeback errors scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetport openrisc: Fix oops caused when dumping stack libnvdimm/security: ensure sysfs poll thread woke up and fetch updated attr libnvdimm/security: fix a typo clk: bcm2835: Do not use prediv with bcm2711's PLLs ubifs: Fix wrong orphan node deletion in ubifs_jnl_update|rename nfs: ensure correct writeback errors are returned on close() i2c: rcar: avoid race when unregistering slave tools build feature: Use CC and CXX from parent pwm: bcm-iproc: handle clk_get_rate() return clk: clk-atlas6: fix return value check in atlas6_clk_init() clk: qcom: gcc-sdm660: Fix up gcc_mss_mnoc_bimc_axi_clk i2c: rcar: slave: only send STOP event when we have been addressed iommu/vt-d: Enforce PASID devTLB field mask clk: qcom: clk-alpha-pll: remove unused/incorrect PLL_CAL_VAL clk: qcom: gcc: fix sm8150 GPU and NPU clocks iommu/omap: Check for failure of a call to omap_iommu_dump_ctx selftests/powerpc: ptrace-pkey: Don't update expected UAMOR value selftests/powerpc: ptrace-pkey: Update the test to mark an invalid pkey correctly selftests/powerpc: ptrace-pkey: Rename variables to make it easier to follow code clk: actions: Fix h_clk for Actions S500 SoC dm rq: don't call blk_mq_queue_stopped() in dm_stop_queue() gpu: ipu-v3: image-convert: Wait for all EOFs before completing a tile gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers crypto: caam - Remove broken arc4 support mmc: renesas_sdhi_internal_dmac: clean up the code for dma complete RDMA/counter: Allow manually bind QPs with different pids to same counter RDMA/counter: Only bind user QPs in auto mode devres: keep both device name and resource name in pretty name crypto: af_alg - Fix regression on empty requests USB: serial: ftdi_sio: clean up receive processing USB: serial: ftdi_sio: make process-packet buffer unsigned selftests/bpf: test_progs use another shell exit on non-actions selftests/bpf: Test_progs indicate to shell on non-actions IB/uverbs: Set IOVA on IB MR in uverbs layer media: rockchip: rga: Only set output CSC mode for RGB input media: rockchip: rga: Introduce color fmt macros and refactor CSC mode logic RDMA/ipoib: Fix ABBA deadlock with ipoib_reap_ah() RDMA/ipoib: Return void from ipoib_ib_dev_stop() platform/chrome: cros_ec_ishtp: Fix a double-unlock issue mtd: rawnand: fsl_upm: Remove unused mtd var octeontx2-af: change (struct qmem)->entry_sz from u8 to u16 mfd: arizona: Ensure 32k clock is put on driver unbind and error crypto: algif_aead - Only wake up when ctx->more is zero pinctrl: ingenic: Properly detect GPIO direction when configured for IRQ orangefs: get rid of knob code... drm/imx: imx-ldb: Disable both channels for split mode in enc->disable() remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load remoteproc: qcom_q6v5_mss: Validate MBA firmware size before load remoteproc: qcom: q6v5: Update running state before requesting stop perf intel-pt: Fix duplicate branch after CBR perf intel-pt: Fix FUP packet state module: Correctly truncate sysfs sections output pseries: Fix 64 bit logical memory block panic ceph: handle zero-length feature mask in session messages ceph: set sec_context xattr on symlink creation watchdog: f71808e_wdt: clear watchdog timeout occurred flag watchdog: f71808e_wdt: remove use of wrong watchdog_info option watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog_info.options tracing: Move pipe reference to trace array instead of current_tracer tracing: Use trace_sched_process_free() instead of exit() for pid tracing tracing/hwlat: Honor the tracing_cpumask kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler ftrace: Setup correct FTRACE_FL_REGS flags for module mm/memory_hotplug: fix unpaired mem_hotplug_begin/done mm/page_counter.c: fix protection usage propagation ocfs2: change slot number type s16 to u16 khugepaged: collapse_pte_mapped_thp() protect the pmd lock khugepaged: collapse_pte_mapped_thp() flush the right range ext2: fix missing percpu_counter_inc MIPS: qi_lb60: Fix routing to audio amplifier MIPS: CPU#0 is not hotpluggable driver core: Avoid binding drivers to dead devices mac80211: fix misplaced while instead of if bcache: fix overflow in offset_to_stripe() bcache: allocate meta data pages as compound pages md/raid5: Fix Force reconstruct-write io stuck in degraded raid5 net/compat: Add missing sock updates for SCM_RIGHTS net: stmmac: dwmac1000: provide multicast filter fallback net: ethernet: stmmac: Disable hardware multicast filter media: vsp1: dl: Fix NULL pointer dereference on unbind pinctrl: ingenic: Enhance support for IRQ_TYPE_EDGE_BOTH powerpc: Fix circular dependency between percpu.h and mmu.h powerpc: Allow 4224 bytes of stack expansion for the signal frame powerpc/ptdump: Fix build failure in hashpagetable.c cifs: Fix leak when handling lease break for cached root fid xtensa: fix xtensa_pmu_setup prototype xtensa: add missing exclusive access state management iio: dac: ad5592r: fix unbalanced mutex unlocks in ad5592r_read_raw() dt-bindings: iio: io-channel-mux: Fix compatible string in example code arm64: perf: Correct the event index in sysfs btrfs: fix return value mixup in btrfs_get_extent btrfs: make sure SB_I_VERSION doesn't get unset by remount btrfs: fix memory leaks after failure to lookup checksums during inode logging btrfs: inode: fix NULL pointer dereference if inode doesn't need compression btrfs: only search for left_info if there is no right_info in try_merge_free_space btrfs: fix messages after changing compression level by remount btrfs: fix race between page release and a fast fsync btrfs: don't WARN if we abort a transaction with EROFS btrfs: sysfs: use NOFS for device creation btrfs: avoid possible signal interruption of btrfs_drop_snapshot() on relocation tree btrfs: add missing check for nocow and compression inode flags btrfs: relocation: review the call sites which can be interrupted by signal btrfs: move the chunk_mutex in btrfs_read_chunk_tree btrfs: open device without device_list_mutex btrfs: don't traverse into the seed devices in show_devname btrfs: remove no longer needed use of log_writers for the log root tree btrfs: stop incremening log_batch for the log root tree when syncing log btrfs: ref-verify: fix memory leak in add_block_entry btrfs: don't allocate anonymous block device for user invisible roots btrfs: free anon block device right after subvolume deletion btrfs: allow use of global block reserve for balance item deletion PCI: qcom: Add support for tx term offset for rev 2.1.0 PCI: qcom: Define some PARF params needed for ipq8064 SoC PCI: Add device even if driver attach failed PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken PCI: hotplug: ACPI: Fix context refcounting in acpiphp_grab_context() genirq/PM: Always unlock IRQ descriptor in rearm_wake_irq() genirq/affinity: Make affinity setting if activated opt-in smb3: warn on confusing error scenario with sec=krb5
intel · Sep 14, 2020 · 24d1b58 · 24d1b58
2 parents 3747758 + fb165c2
commit 24d1b58
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diff --git a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt
@@ -21,7 +21,7 @@ controller state. The mux controller state is described in
 
 Example:
 	mux: mux-controller {
-		compatible = "mux-gpio";
+		compatible = "gpio-mux";
 		#mux-control-cells = <0>;
 
 		mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>,

diff --git a/Documentation/kbuild/index.rst b/Documentation/kbuild/index.rst
@@ -19,6 +19,7 @@ Kernel Build System
 
     issues
     reproducible-builds
+    llvm
 
 .. only::  subproject and html
 

diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst
@@ -262,3 +262,8 @@ KBUILD_BUILD_USER, KBUILD_BUILD_HOST
 These two variables allow to override the user@host string displayed during
 boot and in /proc/version. The default value is the output of the commands
 whoami and host, respectively.
+
+LLVM
+----
+If this variable is set to 1, Kbuild will use Clang and LLVM utilities instead
+of GCC and GNU binutils to build the kernel.
diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst
@@ -0,0 +1,87 @@
+==============================
+Building Linux with Clang/LLVM
+==============================
+
+This document covers how to build the Linux kernel with Clang and LLVM
+utilities.
+
+About
+-----
+
+The Linux kernel has always traditionally been compiled with GNU toolchains
+such as GCC and binutils. Ongoing work has allowed for `Clang
+<https://clang.llvm.org/>`_ and `LLVM <https://llvm.org/>`_ utilities to be
+used as viable substitutes. Distributions such as `Android
+<https://www.android.com/>`_, `ChromeOS
+<https://www.chromium.org/chromium-os>`_, and `OpenMandriva
+<https://www.openmandriva.org/>`_ use Clang built kernels.  `LLVM is a
+collection of toolchain components implemented in terms of C++ objects
+<https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM that
+supports C and the GNU C extensions required by the kernel, and is pronounced
+"klang," not "see-lang."
+
+Clang
+-----
+
+The compiler used can be swapped out via `CC=` command line argument to `make`.
+`CC=` should be set when selecting a config and during a build.
+
+	make CC=clang defconfig
+
+	make CC=clang
+
+Cross Compiling
+---------------
+
+A single Clang compiler binary will typically contain all supported backends,
+which can help simplify cross compiling.
+
+	ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make CC=clang
+
+`CROSS_COMPILE` is not used to prefix the Clang compiler binary, instead
+`CROSS_COMPILE` is used to set a command line flag: `--target <triple>`. For
+example:
+
+	clang --target aarch64-linux-gnu foo.c
+
+LLVM Utilities
+--------------
+
+LLVM has substitutes for GNU binutils utilities. Kbuild supports `LLVM=1`
+to enable them.
+
+	make LLVM=1
+
+They can be enabled individually. The full list of the parameters:
+
+	make CC=clang LD=ld.lld AR=llvm-ar NM=llvm-nm STRIP=llvm-strip \\
+	  OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump OBJSIZE=llvm-size \\
+	  READELF=llvm-readelf HOSTCC=clang HOSTCXX=clang++ HOSTAR=llvm-ar \\
+	  HOSTLD=ld.lld
+
+Currently, the integrated assembler is disabled by default. You can pass
+`LLVM_IAS=1` to enable it.
+
+Getting Help
+------------
+
+- `Website <https://clangbuiltlinux.github.io/>`_
+- `Mailing List <https://groups.google.com/forum/#!forum/clang-built-linux>`_: <clang-built-linux@googlegroups.com>
+- `Issue Tracker <https://github.com/ClangBuiltLinux/linux/issues>`_
+- IRC: #clangbuiltlinux on chat.freenode.net
+- `Telegram <https://t.me/ClangBuiltLinux>`_: @ClangBuiltLinux
+- `Wiki <https://github.com/ClangBuiltLinux/linux/wiki>`_
+- `Beginner Bugs <https://github.com/ClangBuiltLinux/linux/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22>`_
+
+Getting LLVM
+-------------
+
+- http://releases.llvm.org/download.html
+- https://github.com/llvm/llvm-project
+- https://llvm.org/docs/GettingStarted.html
+- https://llvm.org/docs/CMake.html
+- https://apt.llvm.org/
+- https://www.archlinux.org/packages/extra/x86_64/llvm/
+- https://github.com/ClangBuiltLinux/tc-build
+- https://github.com/ClangBuiltLinux/linux/wiki/Building-Clang-from-source
+- https://android.googlesource.com/platform/prebuilts/clang/host/linux-x86/
diff --git a/MAINTAINERS b/MAINTAINERS
@@ -4040,6 +4040,7 @@ B:	https://github.com/ClangBuiltLinux/linux/issues
 C:	irc://chat.freenode.net/clangbuiltlinux
 S:	Supported
 K:	\b(?i:clang|llvm)\b
+F:	Documentation/kbuild/llvm.rst
 
 CLEANCACHE API
 M:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/Makefile b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 4
-SUBLEVEL = 59
+SUBLEVEL = 61
 EXTRAVERSION =
 NAME = Kleptomaniac Octopus
 
@@ -394,8 +394,13 @@ HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
 
-HOSTCC       = gcc
-HOSTCXX      = g++
+ifneq ($(LLVM),)
+HOSTCC	= clang
+HOSTCXX	= clang++
+else
+HOSTCC	= gcc
+HOSTCXX	= g++
+endif
 KBUILD_HOSTCFLAGS   := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
 		-fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \
 		$(HOSTCFLAGS)
@@ -404,16 +409,28 @@ KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
 KBUILD_HOSTLDLIBS   := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
 
 # Make variables (CC, etc...)
-AS		= $(CROSS_COMPILE)as
-LD		= $(CROSS_COMPILE)ld
-CC		= $(CROSS_COMPILE)gcc
 CPP		= $(CC) -E
+ifneq ($(LLVM),)
+CC		= clang
+LD		= ld.lld
+AR		= llvm-ar
+NM		= llvm-nm
+OBJCOPY		= llvm-objcopy
+OBJDUMP		= llvm-objdump
+READELF		= llvm-readelf
+OBJSIZE		= llvm-size
+STRIP		= llvm-strip
+else
+CC		= $(CROSS_COMPILE)gcc
+LD		= $(CROSS_COMPILE)ld
 AR		= $(CROSS_COMPILE)ar
 NM		= $(CROSS_COMPILE)nm
-STRIP		= $(CROSS_COMPILE)strip
 OBJCOPY		= $(CROSS_COMPILE)objcopy
 OBJDUMP		= $(CROSS_COMPILE)objdump
+READELF		= $(CROSS_COMPILE)readelf
 OBJSIZE		= $(CROSS_COMPILE)size
+STRIP		= $(CROSS_COMPILE)strip
+endif
 PAHOLE		= pahole
 LEX		= flex
 YACC		= bison
@@ -422,7 +439,6 @@ INSTALLKERNEL  := installkernel
 DEPMOD		= /sbin/depmod
 PERL		= perl
 PYTHON		= python
-PYTHON2		= python2
 PYTHON3		= python3
 CHECK		= sparse
 BASH		= bash
@@ -471,9 +487,9 @@ KBUILD_LDFLAGS :=
 GCC_PLUGINS_CFLAGS :=
 CLANG_FLAGS :=
 
-export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE PAHOLE LEX YACC AWK INSTALLKERNEL
-export PERL PYTHON PYTHON2 PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
+export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC
+export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF PAHOLE LEX YACC AWK INSTALLKERNEL
+export PERL PYTHON PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
 export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE
 
 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
@@ -534,7 +550,7 @@ endif
 ifneq ($(GCC_TOOLCHAIN),)
 CLANG_FLAGS	+= --gcc-toolchain=$(GCC_TOOLCHAIN)
 endif
-ifeq ($(shell $(AS) --version 2>&1 | head -n 1 | grep clang),)
+ifneq ($(LLVM_IAS),1)
 CLANG_FLAGS	+= -no-integrated-as
 endif
 CLANG_FLAGS	+= -Werror=unknown-warning-option

diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
@@ -502,10 +502,10 @@ extern inline void writeq(u64 b, volatile void __iomem *addr)
 }
 #endif
 
-#define ioread16be(p) be16_to_cpu(ioread16(p))
-#define ioread32be(p) be32_to_cpu(ioread32(p))
-#define iowrite16be(v,p) iowrite16(cpu_to_be16(v), (p))
-#define iowrite32be(v,p) iowrite32(cpu_to_be32(v), (p))
+#define ioread16be(p) swab16(ioread16(p))
+#define ioread32be(p) swab32(ioread32(p))
+#define iowrite16be(v,p) iowrite16(swab16(v), (p))
+#define iowrite32be(v,p) iowrite32(swab32(v), (p))
 
 #define inb_p		inb
 #define inw_p		inw

diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
@@ -266,7 +266,7 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 int kvm_unmap_hva_range(struct kvm *kvm,
-			unsigned long start, unsigned long end);
+			unsigned long start, unsigned long end, unsigned flags);
 int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 
 unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
@@ -146,6 +146,7 @@ zinstall install:
 PHONY += vdso_install
 vdso_install:
 	$(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
+	$(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso32 $@
 
 # We use MRPROPER_FILES and CLEAN_FILES now
 archclean:

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
@@ -19,6 +19,12 @@
 	model = "Globalscale Marvell ESPRESSOBin Board";
 	compatible = "globalscale,espressobin", "marvell,armada3720", "marvell,armada3710";
 
+	aliases {
+		ethernet0 = &eth0;
+		serial0 = &uart0;
+		serial1 = &uart1;
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
@@ -427,7 +427,7 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 int kvm_unmap_hva_range(struct kvm *kvm,
-			unsigned long start, unsigned long end);
+			unsigned long start, unsigned long end, unsigned flags);
 int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
@@ -155,7 +155,7 @@ armv8pmu_events_sysfs_show(struct device *dev,
 
 	pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);
 
-	return sprintf(page, "event=0x%03llx\n", pmu_attr->id);
+	return sprintf(page, "event=0x%04llx\n", pmu_attr->id);
 }
 
 #define ARMV8_EVENT_ATTR(name, config) \
@@ -303,10 +303,13 @@ armv8pmu_event_attr_is_visible(struct kobject *kobj,
 	    test_bit(pmu_attr->id, cpu_pmu->pmceid_bitmap))
 		return attr->mode;
 
-	pmu_attr->id -= ARMV8_PMUV3_EXT_COMMON_EVENT_BASE;
-	if (pmu_attr->id < ARMV8_PMUV3_MAX_COMMON_EVENTS &&
-	    test_bit(pmu_attr->id, cpu_pmu->pmceid_ext_bitmap))
-		return attr->mode;
+	if (pmu_attr->id >= ARMV8_PMUV3_EXT_COMMON_EVENT_BASE) {
+		u64 id = pmu_attr->id - ARMV8_PMUV3_EXT_COMMON_EVENT_BASE;
+
+		if (id < ARMV8_PMUV3_MAX_COMMON_EVENTS &&
+		    test_bit(id, cpu_pmu->pmceid_ext_bitmap))
+			return attr->mode;
+	}
 
 	return 0;
 }

diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
@@ -190,7 +190,7 @@ quiet_cmd_vdsosym = VDSOSYM $@
       cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
 
 # Install commands for the unstripped file
-quiet_cmd_vdso_install = INSTALL $@
+quiet_cmd_vdso_install = INSTALL32 $@
       cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/vdso32.so
 
 vdso.so: $(obj)/vdso.so.dbg

diff --git a/arch/m68k/include/asm/m53xxacr.h b/arch/m68k/include/asm/m53xxacr.h
@@ -89,9 +89,9 @@
  * coherency though in all cases. And for copyback caches we will need
  * to push cached data as well.
  */
-#define CACHE_INIT	  CACR_CINVA
-#define CACHE_INVALIDATE  CACR_CINVA
-#define CACHE_INVALIDATED CACR_CINVA
+#define CACHE_INIT        (CACHE_MODE + CACR_CINVA - CACR_EC)
+#define CACHE_INVALIDATE  (CACHE_MODE + CACR_CINVA)
+#define CACHE_INVALIDATED (CACHE_MODE + CACR_CINVA)
 
 #define ACR0_MODE	((CONFIG_RAMBASE & 0xff000000) + \
 			 (0x000f0000) + \

diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts
@@ -69,7 +69,7 @@
 			"Speaker", "OUTL",
 			"Speaker", "OUTR",
 			"INL", "LOUT",
-			"INL", "ROUT";
+			"INR", "ROUT";
 
 		simple-audio-card,aux-devs = <&amp>;
 

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
@@ -939,7 +939,7 @@ enum kvm_mips_fault_result kvm_trap_emul_gva_fault(struct kvm_vcpu *vcpu,
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 int kvm_unmap_hva_range(struct kvm *kvm,
-			unsigned long start, unsigned long end);
+			unsigned long start, unsigned long end, unsigned flags);
 int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
@@ -494,7 +494,7 @@ static void __init mips_parse_crashkernel(void)
 	if (ret != 0 || crash_size <= 0)
 		return;
 
-	if (!memblock_find_in_range(crash_base, crash_base + crash_size, crash_size, 0)) {
+	if (!memblock_find_in_range(crash_base, crash_base + crash_size, crash_size, 1)) {
 		pr_warn("Invalid memory region reserved for crash kernel\n");
 		return;
 	}

diff --git a/arch/mips/kernel/topology.c b/arch/mips/kernel/topology.c
@@ -20,7 +20,7 @@ static int __init topology_init(void)
 	for_each_present_cpu(i) {
 		struct cpu *c = &per_cpu(cpu_devices, i);
 
-		c->hotpluggable = 1;
+		c->hotpluggable = !!i;
 		ret = register_cpu(c, i);
 		if (ret)
 			printk(KERN_WARNING "topology_init: register_cpu %d "

diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c
@@ -512,7 +512,8 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
 	return 1;
 }
 
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
+			unsigned flags)
 {
 	handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);
 

diff --git a/arch/openrisc/kernel/stacktrace.c b/arch/openrisc/kernel/stacktrace.c
@@ -13,6 +13,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 
 #include <asm/processor.h>
@@ -68,12 +69,25 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
 	unsigned long *sp = NULL;
 
+	if (!try_get_task_stack(tsk))
+		return;
+
 	if (tsk == current)
 		sp = (unsigned long *) &sp;
-	else
-		sp = (unsigned long *) KSTK_ESP(tsk);
+	else {
+		unsigned long ksp;
+
+		/* Locate stack from kernel context */
+		ksp = task_thread_info(tsk)->ksp;
+		ksp += STACK_FRAME_OVERHEAD;	/* redzone */
+		ksp += sizeof(struct pt_regs);
+
+		sp = (unsigned long *) ksp;
+	}
 
 	unwind_stack(trace, sp, save_stack_address_nosched);
+
+	put_task_stack(tsk);
 }
 EXPORT_SYMBOL_GPL(save_stack_trace_tsk);