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tag: v2.6.25-rc3
Commits on Feb 24, 2008
  1. Linux 2.6.25-rc3

    Linus Torvalds authored
  2. i2c-i801: Add support for the ICH10

    Gaston, Jason D authored Jean Delvare committed
    Add the Intel ICH10 SMBus Controller DeviceID's and updates
    Tolapai support.
    
    Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
    Signed-off-by: Jean Delvare <khali@linux-fr.org>
  3. i2c: Make i2c_register_board_info() a NOP when CONFIG_I2C_BOARDINFO=n

    David Brownell authored Jean Delvare committed
    Don't require platform code to be #ifdeffed according to whether
    I2C is enabled or not ... if it's not enabled, let GCC compile out
    all I2C device declarations.  (Issue noted on an NSLU2 build that
    didn't configure I2C.)
    
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: Jean Delvare <khali@linux-fr.org>
  4. i2c-pca-isa: Add access check to legacy ioports

    Christian Krafft authored Jean Delvare committed
    When probing i2c-pca-isa writes to legacy ioports, which crashes the kernel
    if there is no device at that port.
    This patch adds a check_legacy_ioport call, so probe fails gracefully
    and thus prevents the oops.
    
    Signed-off-by: Christian Krafft <krafft@de.ibm.com>
    Signed-off-by: Jean Delvare <khali@linux-fr.org>
  5. Alchemy: compile fix

    Manuel Lauss authored Jean Delvare committed
    Commit 8b798c4 broke
    alchemy build, fix it.  Pointed out by Adrian Bunk.
    
    Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
    Signed-off-by: Jean Delvare <khali@linux-fr.org>
  6. @tklauser

    i2c: Storage class should be before const qualifier

    tklauser authored Jean Delvare committed
    The C99 specification states in section 6.11.5:
    
    The placement of a storage-class specifier other than at the
    beginning of the declaration specifiers in a declaration is an
    obsolescent feature.
    
    Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
    Signed-off-by: Jean Delvare <khali@linux-fr.org>
  7. i2c-pxa: Misc fixes

    Wolfram Sang authored Jean Delvare committed
    While working on the PCA9564-platform driver, I sometimes had a glimpse at the
    pxa-driver. I found some suspicious places, and this patch contains my
    suggestions. Note: They are not tested, due to no hardware.
    
    [JD: Some more fixes.]
    
    Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
    Signed-off-by: Jean Delvare <khali@linux-fr.org>
    Tested-by: Mike Rapoport <mike@compulab.co.il>
    Tested-by: Eric Miao <ymiao3@marvell.com>
  8. ARM: OMAP: Release i2c_adapter after use (Siemens SX1)

    Jean Delvare authored Jean Delvare committed
    Each call to i2c_get_adapter() must be followed by a call to
    i2c_put_adapter() to release the grabbed reference. Otherwise the
    reference count grows forever and the adapter can never be
    unregistered.
    
    Signed-off-by: Jean Delvare <khali@linux-fr.org>
    Acked-by: Vladimir Ananiev <vovan888@gmail.com>
    Acked-by: Tony Lindgren <tony@atomide.com>
  9. Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/k…

    Linus Torvalds authored
    …ernel/git/jgarzik/libata-dev
    
    * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
      libata-core: fix kernel-doc warning
      sata_fsl: fix build with ATA_VERBOSE_DEBUG
      [libata] ahci: AMD SB700/SB800 SATA support 64bit DMA
      libata-pmp: clear hob for pmp register accesses
      libata: automatically use DMADIR if drive/bridge requires it
      power_state: get rid of write-only variable in SATA
      pata_atiixp: Use 255 sector limit
  10. libata-core: fix kernel-doc warning

    Randy Dunlap authored Jeff Garzik committed
    Fix libata-core kernel-doc warning:
    Warning(linux-2.6.25-rc2-git6//drivers/ata/libata-core.c:168): No description found for parameter 'ap'
    
    Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
    Signed-off-by: Jeff Garzik <jeff@garzik.org>
  11. sata_fsl: fix build with ATA_VERBOSE_DEBUG

    Anton Vorontsov authored Jeff Garzik committed
    This patch fixes build and few warnings when ATA_VERBOSE_DEBUG
    is defined:
    
      CC      drivers/ata/sata_fsl.o
    drivers/ata/sata_fsl.c: In function ‘sata_fsl_fill_sg’:
    drivers/ata/sata_fsl.c:338: warning: format ‘%x’ expects type ‘unsigned int’, but argument 3 has type ‘void *’
    drivers/ata/sata_fsl.c:338: warning: format ‘%x’ expects type ‘unsigned int’, but argument 4 has type ‘struct prde *’
    drivers/ata/sata_fsl.c: In function ‘sata_fsl_qc_issue’:
    drivers/ata/sata_fsl.c:459: error: ‘csr_base’ undeclared (first use in this function)
    drivers/ata/sata_fsl.c:459: error: (Each undeclared identifier is reported only once
    drivers/ata/sata_fsl.c:459: error: for each function it appears in.)
    drivers/ata/sata_fsl.c: In function ‘sata_fsl_freeze’:
    drivers/ata/sata_fsl.c:525: error: ‘csr_base’ undeclared (first use in this function)
    make[2]: *** [drivers/ata/sata_fsl.o] Error 1
    
    Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
    Signed-off-by: Jeff Garzik <jeff@garzik.org>
  12. [libata] ahci: AMD SB700/SB800 SATA support 64bit DMA

    Shane Huang authored Jeff Garzik committed
    SB700 SATA controller can support 64 bit DMA, the previous commit
    badc234 was added with
    careless reference to SB600, which should be modified by this patch.
    
    Signed-off-by: Shane Huang <shane.huang@amd.com>
    Signed-off-by: Jeff Garzik <jeff@garzik.org>
  13. libata-pmp: clear hob for pmp register accesses

    Mark Lord authored Jeff Garzik committed
    >> Mark Lord wrote:
    >>> Tejun, I've added PMP to sata_mv, and am now trying to get it
    >>> to work with a Marvell PM attached.
    >>>
    >>> And the behaviour I see is very bizarre.
    >>>
    >>> After hard+soft resets, the PM signature is found,
    >>> and libata interrogates the PM registers.
    >>>
    >>> It successfully reads register 0, and then register 1.
    >>> But all subsequent registers read out (incorrectly) as zeros.
    ...
    
    This behavior has been confirmed by Marvell with a SATA analyzer.
    The Marvell port-multiplier apparently likes to see clean HOB
    information when accessing PMP registers.
    
    Since sata_mv uses PIO shadow register access, this doesn't happen
    automatically, as it might in a more purely FIS-based driver (eg. ahci).
    
    One way to fix this is to flag these commands with ATA_TFLAG_LBA48,
    forcing libata to write out the HOB fields with known (zero) values.
    
    Signed-off-by: Saeed Bishara <saeed@marvell.com>
    Acked-by: Mark Lord <mlord@pobox.com>
    Signed-off-by: Jeff Garzik <jeff@garzik.org>
  14. @htejun

    libata: automatically use DMADIR if drive/bridge requires it

    htejun authored Jeff Garzik committed
    Back in 2.6.17-rc2, a libata module parameter was added for atapi_dmadir.
    
    That's nice, but most SATA devices which need it will tell us about it
    in their IDENTIFY PACKET response, as bit-15 of word-62 of the
    returned data (as per ATA7, ATA8 specifications).
    
    So for those which specify it, we should automatically use the DMADIR bit.
    Otherwise, disc writing will fail by default on many SATA-ATAPI drives.
    
    This patch adds ATA_DFLAG_DMADIR and make ata_dev_configure() set it
    if atapi_dmadir is set or identify data indicates DMADIR is necessary.
    atapi_xlat() is converted to check ATA_DFLAG_DMADIR before setting
    DMADIR.
    
    Original patch is from Mark Lord.
    
    Signed-off-by: Tejun Heo <htejun@gmail.com>
    Cc: Mark Lord <mlord@pobox.com>
    Signed-off-by: Jeff Garzik <jeff@garzik.org>
  15. @pavelmachek

    power_state: get rid of write-only variable in SATA

    pavelmachek authored Jeff Garzik committed
    power_state is scheduled for removal, and libata uses it in write-only
    mode. Remove it.
    
    Signed-off-by: Pavel Machek <pavel@suse.cz>
    Signed-off-by: Jeff Garzik <jeff@garzik.org>
  16. @Alan-Cox

    pata_atiixp: Use 255 sector limit

    Alan-Cox authored Jeff Garzik committed
    AHCI needs sorting too but this deals with the old interface
    
    Signed-off-by: Alan Cox <alan@redhat.com>
    Signed-off-by: Jeff Garzik <jeff@garzik.org>
  17. Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

    Linus Torvalds authored
    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits)
      [NETFILTER]: fix ebtable targets return
      [IP_TUNNEL]: Don't limit the number of tunnels with generic name explicitly.
      [NET]: Restore sanity wrt. print_mac().
      [NEIGH]: Fix race between neighbor lookup and table's hash_rnd update.
      [RTNL]: Validate hardware and broadcast address attribute for RTM_NEWLINK
      tg3: ethtool phys_id default
      [BNX2]: Update version to 1.7.4.
      [BNX2]: Disable parallel detect on an HP blade.
      [BNX2]: More 5706S link down workaround.
      ssb: Fix support for PCI devices behind a SSB->PCI bridge
      zd1211rw: fix sparse warnings
      rtl818x: fix sparse warnings
      ssb: Fix pcicore cardbus mode
      ssb: Make the GPIO API reentrancy safe
      ssb: Fix the GPIO API
      ssb: Fix watchdog access for devices without a chipcommon
      ssb: Fix serial console on new bcm47xx devices
      ath5k: Fix build warnings on some 64-bit platforms.
      WDEV, ath5k, don't return int from bool function
      WDEV: ath5k, fix lock imbalance
      ...
  18. Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

    Linus Torvalds authored
    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
      [SPARC64]: make IOMMU code respect the segment boundary limits
      [SPARC64]: Fix cpu trampoline et al. mismatch warnings.
      [SPARC64]: More sparse warning fixes in process.c
      [SPARC64]: Fix sparse warning wrt. fault_in_user_windows.
      [SPARC64]: Kill show_regs32().
      [SPARC64]: Fix sparse warnings wrt. __show_regs().
      [SPARC64]: Kill show_stackframe{,32}().
      [SPARC64]: Fix sparse warnings wrt. machine_alt_power_off().
  19. @mirco

    Fix u132-hcd.c compile error

    mirco authored Linus Torvalds committed
    This fixes the following compile error caused by commit
    3a2d5b7 ("PM: Introduce
    PM_EVENT_HIBERNATE callback state")
    
        CC [M]  drivers/usb/host/u132-hcd.o
      drivers/usb/host/u132-hcd.c: In function ‘u132_suspend’:
      drivers/usb/host/u132-hcd.c:3224: error: expected expression before ‘int’
      drivers/usb/host/u132-hcd.c:3225: error: ‘ports’ undeclared (first use in this function)
      ...
    
    Signed-off-by: Mirco Tischler <mt-ml@gmx.de>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  20. @joonwpark @davem330

    [NETFILTER]: fix ebtable targets return

    joonwpark authored davem330 committed
    The function ebt_do_table doesn't take NF_DROP as a verdict from the targets.
    
    Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
    Signed-off-by: Patrick McHardy <kaber@trash.net>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  21. @xemul @davem330

    [IP_TUNNEL]: Don't limit the number of tunnels with generic name expl…

    xemul authored davem330 committed
    …icitly.
    
    Use the added dev_alloc_name() call to create tunnel device name,
    rather than iterate in a hand-made loop with an artificial limit.
    
    Thanks Patrick for noticing this.
    
    [ The way this works is, when the device is actually registered,
      the generic code noticed the '%' in the name and invokes
      dev_alloc_name() to fully resolve the name.  -DaveM ]
    
    Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  22. @davem330

    [NET]: Restore sanity wrt. print_mac().

    davem330 authored
    MAC_FMT had only one user and we tried to get rid of
    that, but this created more problems than it solved.
    
    As a result, this reverts three commits:
    
    235365f ("net/8021q/vlan_dev.c: Use
    print_mac."), fea5fa8 ("[NET]: Remove
    MAC_FMT"), and 8f789c4 ("[NET]:
    Elminate spurious print_mac() calls.")
    
    Signed-off-by: David S. Miller <davem@davemloft.net>
  23. @xemul @davem330

    [NEIGH]: Fix race between neighbor lookup and table's hash_rnd update.

    xemul authored davem330 committed
    The neigh_hash_grow() may update the tbl->hash_rnd value, which 
    is used in all tbl->hash callbacks to calculate the hashval.
    
    Two lookup routines may race with this, since they call the 
    ->hash callback without the tbl->lock held. Since the hash_rnd
    is changed with this lock write-locked moving the calls to ->hash
    under this lock read-locked closes this gap.
    
    Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  24. @tgraf @davem330

    [RTNL]: Validate hardware and broadcast address attribute for RTM_NEW…

    tgraf authored davem330 committed
    …LINK
    
    RTM_NEWLINK allows for already existing links to be modified. For this
    purpose do_setlink() is called which expects address attributes with a
    payload length of at least dev->addr_len. This patch adds the necessary
    validation for the RTM_NEWLINK case.
    
    The address length for links to be created is not checked for now as the
    actual attribute length is used when copying the address to the netdevice
    structure. It might make sense to report an error if less than addr_len
    bytes are provided but enforcing this might break drivers trying to be
    smart with not transmitting all zero addresses.
    
    Signed-off-by: Thomas Graf <tgraf@suug.ch>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  25. @davem330

    tg3: ethtool phys_id default

    Stephen Hemminger authored davem330 committed
    When asked to blink LEDs the tg3 driver behaves when using:
    	ethtool -p ethX
    The default value for data is zero, and other drivers interpret this
    as blink forever (or at least a really long time).  The tg3 driver
    interprets this as blink once.  All drivers should have the same
    behaviour.
    
    Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
    Acked-by: Michael Chan <mchan@broadcom.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  26. @davem330

    [BNX2]: Update version to 1.7.4.

    Michael Chan authored davem330 committed
    Signed-off-by: Michael Chan <mchan@broadcom.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  27. @opntr

    fix vmsas.c file permissions

    opntr authored Linus Torvalds committed
    Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  28. @davem330

    [BNX2]: Disable parallel detect on an HP blade.

    Michael Chan authored davem330 committed
    Because of some board issues, we need to disable parallel detect on
    an HP blade.  Without this patch, the link state can become stuck
    when it goes into parallel detect mode.
    
    Signed-off-by: Michael Chan <mchan@broadcom.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  29. @davem330

    [BNX2]: More 5706S link down workaround.

    Michael Chan authored davem330 committed
    The previous patches to workaround the 5706S on an HP blade were not
    sufficient.  The link state still does not change properly in some
    cases.  This patch adds polling to make it completely reliable.
    
    Signed-off-by: Michael Chan <mchan@broadcom.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
  30. Add memory barrier semantics to wake_up() & co

    Linus Torvalds authored
    Oleg Nesterov and others have pointed out that on some architectures,
    the traditional sequence of
    
    	set_current_state(TASK_INTERRUPTIBLE);
    	if (CONDITION)
    		return;
    	schedule();
    
    is racy wrt another CPU doing
    
    	CONDITION = 1;
    	wake_up_process(p);
    
    because while set_current_state() has a memory barrier separating
    setting of the TASK_INTERRUPTIBLE state from reading of the CONDITION
    variable, there is no such memory barrier on the wakeup side.
    
    Now, wake_up_process() does actually take a spinlock before it reads and
    sets the task state on the waking side, and on x86 (and many other
    architectures) that spinlock is in fact equivalent to a memory barrier,
    but that is not generally guaranteed.  The write that sets CONDITION
    could move into the critical region protected by the runqueue spinlock.
    
    However, adding a smp_wmb() to before the spinlock should now order the
    writing of CONDITION wrt the lock itself, which in turn is ordered wrt
    the accesses within the spinlock (which includes the reading of the old
    state).
    
    This should thus close the race (which probably has never been seen in
    practice, but since smp_wmb() is a no-op on x86, it's not like this will
    make anything worse either on the most common architecture where the
    spinlock already gave the required protection).
    
    Acked-by: Oleg Nesterov <oleg@tv-sign.ru>
    Acked-by: Dmitry Adamushko <dmitry.adamushko@gmail.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Nick Piggin <nickpiggin@yahoo.com.au>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  31. mvsas: fix build warning, clean prototypes

    Jeff Garzik authored Linus Torvalds committed
    - Fix build 'make randconfig' build warning spotted by Toralf Foerster:
    
    drivers/scsi/mvsas.c: In function 'mvs_hexdump':
    drivers/scsi/mvsas.c:715: error: implicit declaration of function 'isalnum'
    
    - Remove unneeded prototypes (spotted by hch)
    
    Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  32. documentation: atomic_add_unless() doesn't imply mb() on failure

    Oleg Nesterov authored Linus Torvalds committed
    (sorry for being offtpoic, but while experts are here...)
    
    A "typical" implementation of atomic_add_unless() can return 0 immediately
    after the first atomic_read() (before doing cmpxchg). In that case it doesn't
    provide any barrier semantics. See include/asm-ia64/atomic.h as an example.
    
    We should either change the implementation, or fix the docs.
    
    Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
    Acked-by: Nick Piggin <npiggin@suse.de>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  33. memcgroup: return negative error code in mem_cgroup_create()

    Li Zefan authored Linus Torvalds committed
    Cgroup requires the subsystem to return negative error code on error in the
    create method.
    
    Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
    Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Acked-by: Balbir Singh <balbir@in.ibm.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  34. memcgroup: remove a useless VM_BUG_ON()

    Li Zefan authored Linus Torvalds committed
    Remove this VM_BUG_ON(), as Balbir stated:
    
    We used to have a for loop with !list_empty() as a termination condition
    and VM_BUG_ON(!pc) is a spill over.  With the new loop, VM_BUG_ON(!pc) does
    not make sense.
    
    Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
    Acked-by: Balbir Singh <balbir@in.ibm.com>
    Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  35. memcgroup: fix and update documentation

    Li Zefan authored Linus Torvalds committed
    - remove trailing " Bytes"s in the demonstration
    - remove section 4.4 (feature control_type has been removed)
    - fix reference section
    
    Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
    Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
    Acked-by: Balbir Singh <balbir@in.ibm.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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