Eric Lee / smarc-fsl-linux-kernel

06 Jun, 2009

2 commits

  • 24430abc8   Kill jffs2-user.h ... Browse Code »

    This file does not define any kernel-userspace API, all
    it does it defines few helpers for userspace. Instead,
    userspace should have a private copy of this file.

    The main (if not the only) user is the mtd-utils package, but
    it already has a private copy of this file.

    This patch also removes references to 'jffs2-user.h' from
    'Kbuild' and MAINTAINERS' files.

    Signed-off-by: Artem Bityutskiy
    Signed-off-by: David Woodhouse

    Artem Bityutskiy
     
  • 24b5ce20c   mtd: plat_nand: fix section error ... Browse Code »

    With CONFIG_HOTPLUG=n, the following eror occurred during link:
    local symbol 0: discarded in section `.devexit.text' from
    drivers/built-in.o

    It was caused by improper section reference. The __devexit_p()
    should be added to the .remove function.

    Signed-off-by: Thomas Chou
    Signed-off-by: Artem Bityutskiy
    Signed-off-by: David Woodhouse

    Thomas Chou
     

29 May, 2009

9 commits

26 May, 2009

5 commits

09 May, 2009

8 commits

08 May, 2009

13 commits

  • cd1a6de7d   mtd: fix timeout in M25P80 driver ... Browse Code »

    Extend erase timeout in M25P80 SPI Flash driver.

    The M25P80 drivers fails erasing sectors on a M25P128 because the ready
    wait timeout is too short. Change the timeout from a simple loop count to a
    suitable number of seconds.

    Signed-off-by: Peter Horton
    Tested-by: Martin Michlmayr
    Signed-off-by: Andrew Morton
    Signed-off-by: David Woodhouse

    Peter Horton
     
  • e5299926d   x86: MCE: make cmci_discover_lock irq-safe ... Browse Code »

    Lockdep reports the warning below when Li tries to offline one cpu:

    [ 110.835487] =================================
    [ 110.835616] [ INFO: inconsistent lock state ]
    [ 110.835688] 2.6.30-rc4-00336-g8c9ed89 #52
    [ 110.835757] ---------------------------------
    [ 110.835828] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
    [ 110.835908] swapper/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
    [ 110.835982] (cmci_discover_lock){?.+...}, at: [] cmci_clear+0x30/0x9b

    cmci_clear() can be called via smp_call_function_single().

    It is better to disable interrupt while holding cmci_discover_lock,
    to turn it into an irq-safe lock - we can deadlock otherwise.

    [ Impact: fix possible deadlock in the MCE code ]

    Reported-by: Shaohua Li
    Signed-off-by: Hidetoshi Seto
    Cc: Andi Kleen
    Cc: Andrew Morton
    LKML-Reference:
    Signed-off-by: Ingo Molnar
    Reported-by: Shaohua Li

    Hidetoshi Seto
     
  • 33df4db04   x86: xen, i386: reserve Xen pagetables ... Browse Code »

    The Xen pagetables are no longer implicitly reserved as part of the other
    i386_start_kernel reservations, so make sure we explicitly reserve them.
    This prevents them from being released into the general kernel free page
    pool and reused.

    [ Impact: fix Xen guest crash ]

    Also-Bisected-by: Bryan Donlan
    Signed-off-by: Jeremy Fitzhardinge
    Cc: Xen-devel
    Cc: Linus Torvalds
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Jeremy Fitzhardinge
     
  • 6407df5ca   x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP ... Browse Code »

    Tim Starling reported that crashdump will panic with kernel compiled
    with CONFIG_KEXEC_JUMP due to null pointer deference in
    machine_kexec_32.c: machine_kexec(), when deferencing
    kexec_image. Refering to:

    http://bugzilla.kernel.org/show_bug.cgi?id=13265

    This patch fixes the BUG via replacing global variable reference:
    kexec_image in machine_kexec() with local variable reference: image,
    which is more appropriate, and will not be null.

    Same BUG is in machine_kexec_64.c too, so fixed too in the same way.

    [ Impact: fix crash on kexec ]

    Reported-by: Tim Starling
    Signed-off-by: Huang Ying
    LKML-Reference:
    Signed-off-by: H. Peter Anvin

    Huang Ying
     
  • 498343967   x86-64: finish cleanup_highmaps()'s job wrt. _brk_end ... Browse Code »

    With the introduction of the .brk section, special care must be taken
    that no unused page table entries remain if _brk_end and _end are
    separated by a 2M page boundary. cleanup_highmap() runs very early and
    hence cannot take care of that, hence potential entries needing to be
    removed past _brk_end must be cleared once the brk allocator has done
    its job.

    [ Impact: avoids undesirable TLB aliases ]

    Signed-off-by: Jan Beulich
    Signed-off-by: H. Peter Anvin

    Jan Beulich
     
  • 614387665   x86: fix boot hang in early_reserve_e820() ... Browse Code »

    If the first non-reserved (sub-)range doesn't fit the size requested,
    an endless loop will be entered. If a range returned from
    find_e820_area_size() turns out insufficient in size, the range must
    be skipped before calling the function again.

    [ Impact: fixes boot hang on some platforms ]

    Signed-off-by: Jan Beulich
    Signed-off-by: H. Peter Anvin

    Jan Beulich
     
  • d7a592697   Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (32 commits)
    [CIFS] Fix double list addition in cifs posix open code
    [CIFS] Allow raw ntlmssp code to be enabled with sec=ntlmssp
    [CIFS] Fix SMB uid in NTLMSSP authenticate request
    [CIFS] NTLMSSP reenabled after move from connect.c to sess.c
    [CIFS] Remove sparse warning
    [CIFS] remove checkpatch warning
    [CIFS] Fix final user of old string conversion code
    [CIFS] remove cifs_strfromUCS_le
    [CIFS] NTLMSSP support moving into new file, old dead code removed
    [CIFS] Fix endian conversion of vcnum field
    [CIFS] Remove trailing whitespace
    [CIFS] Remove sparse endian warnings
    [CIFS] Add remaining ntlmssp flags and standardize field names
    [CIFS] Fix build warning
    cifs: fix length handling in cifs_get_name_from_search_buf
    [CIFS] Remove unneeded QuerySymlink call and fix mapping for unmapped status
    [CIFS] rename cifs_strndup to cifs_strndup_from_ucs
    Added loop check when mounting DFS tree.
    Enable dfs submounts to handle remote referrals.
    [CIFS] Remove older session setup implementation
    ...

    Linus Torvalds
     
  • 90e4ee5d3   [CIFS] Fix double list addition in cifs posix open code ... Browse Code »

    Remove adding open file entry twice to lists in the file
    Do not fill file info twice in case of posix opens and creates

    Signed-off-by: Shirish Pargaonkar
    Signed-off-by: Steve French

    Steve French
     
  • 8c9ed899b   NOMMU: Don't check vm_region::vm_start is page aligned in add_nommu_region() ... Browse Code »

    Don't check vm_region::vm_start is page aligned in add_nommu_region() because
    the region may reflect some non-page-aligned mapped file, such as could be
    obtained from RomFS XIP.

    Signed-off-by: David Howells
    Acked-by: Greg Ungerer
    Signed-off-by: Linus Torvalds

    David Howells
     
  • ee7fee0b9   Merge branch 'for-linus' of git://neil.brown.name/md ... Browse Code »

    * 'for-linus' of git://neil.brown.name/md:
    md: remove rd%d links immediately after stopping an array.
    md: remove ability to explicit set an inactive array to 'clean'.
    md: constify VFTs
    md: tidy up status_resync to handle large arrays.
    md: fix some (more) errors with bitmaps on devices larger than 2TB.
    md/raid10: don't clear bitmap during recovery if array will still be degraded.
    md: fix loading of out-of-date bitmap.

    Linus Torvalds
     
  • 8a0a9bd4d   random: make get_random_int() more random ... Browse Code »

    It's a really simple patch that basically just open-codes the current
    "secure_ip_id()" call, but when open-coding it we now use a _static_
    hashing area, so that it gets updated every time.

    And to make sure somebody can't just start from the same original seed of
    all-zeroes, and then do the "half_md4_transform()" over and over until
    they get the same sequence as the kernel has, each iteration also mixes in
    the same old "current->pid + jiffies" we used - so we should now have a
    regular strong pseudo-number generator, but we also have one that doesn't
    have a single seed.

    Note: the "pid + jiffies" is just meant to be a tiny tiny bit of noise. It
    has no real meaning. It could be anything. I just picked the previous
    seed, it's just that now we keep the state in between calls and that will
    feed into the next result, and that should make all the difference.

    I made that hash be a per-cpu data just to avoid cache-line ping-pong:
    having multiple CPU's write to the same data would be fine for randomness,
    and add yet another layer of chaos to it, but since get_random_int() is
    supposed to be a fast interface I did it that way instead. I considered
    using "__raw_get_cpu_var()" to avoid any preemption overhead while still
    getting the hash be _mostly_ ping-pong free, but in the end good taste won
    out.

    Signed-off-by: Ingo Molnar
    Signed-off-by: Linus Torvalds

    Linus Torvalds
     
  • 2c66fa7e6   Merge master.kernel.org:/home/rmk/linux-2.6-arm ... Browse Code »

    * master.kernel.org:/home/rmk/linux-2.6-arm:
    [ARM] 5507/1: support R_ARM_MOVW_ABS_NC and MOVT_ABS relocation types
    [ARM] 5506/1: davinci: DMA_32BIT_MASK --> DMA_BIT_MASK(32)
    i.MX31: Disable CPU_32v6K in mx3_defconfig.
    mx3fb: Fix compilation with CONFIG_PM
    mx27ads: move PBC mapping out of vmalloc space
    MXC: remove BUG_ON in interrupt handler
    mx31: remove mx31moboard_defconfig
    ARM: ARCH_MXC should select HAVE_CLK
    mxc : BUG in imx_dma_request
    mxc : Clean up properly when imx_dma_free() used without imx_dma_disable()
    [ARM] mv78xx0: update defconfig
    [ARM] orion5x: update defconfig
    [ARM] Kirkwood: update defconfig
    [ARM] Kconfig typo fix: "PXA930" -> "CPU_PXA930".
    [ARM] S3C2412: Add missing cache flush in suspend code
    [ARM] S3C: Add UDIVSLOT support for newer UARTS
    [ARM] S3C64XX: Add S3C64XX_PA_IIS{0,1} to

    Linus Torvalds
     
  • ae51e6098   [ARM] 5507/1: support R_ARM_MOVW_ABS_NC and MOVT_ABS relocation types ... Browse Code »

    From: Bruce Ashfield

    To fully support the armv7-a instruction set/optimizations, support
    for the R_ARM_MOVW_ABS_NC and R_ARM_MOVT_ABS relocation types is
    required.

    The MOVW and MOVT are both load-immediate instructions, MOVW loads 16
    bits into the bottom half of a register, and MOVT loads 16 bits into the
    top half of a register.

    The relocation information for these instructions has a full 32 bit
    value, plus an addend which is stored in the 16 immediate bits in the
    instruction itself. The immediate bits in the instruction are not
    contiguous (the register # splits it into a 4 bit and 12 bit value),
    so the addend has to be extracted accordingly and added to the value.
    The value is then split and put into the instruction; a MOVW uses the
    bottom 16 bits of the value, and a MOVT uses the top 16 bits.

    Signed-off-by: David Borman
    Signed-off-by: Bruce Ashfield
    Signed-off-by: Paul Gortmaker
    Signed-off-by: Russell King

    Paul Gortmaker
     

07 May, 2009

3 commits

  • a029b706d   [ARM] 5506/1: davinci: DMA_32BIT_MASK --> DMA_BIT_MASK(32) ... Browse Code »

    As per commit 284901a90a9e0b812ca3f5f852cbbfb60d10249d, use
    DMA_BIT_MASK(n)

    Signed-off-by: Kevin Hilman
    Signed-off-by: Russell King

    Kevin Hilman
     
  • c4647292f   md: remove rd%d links immediately after stopping an array. ... Browse Code »

    md maintains link in sys/mdXX/md/ to identify which device has
    which role in the array. e.g.
    rd2 -> dev-sda

    indicates that the device with role '2' in the array is sda.

    These links are only present when the array is active. They are
    created immediately after ->run is called, and so should be removed
    immediately after ->stop is called.
    However they are currently removed a little bit later, and it is
    possible for ->run to be called again, thus adding these links, before
    they are removed.

    So move the removal earlier so they are consistently only present when
    the array is active.

    Signed-off-by: NeilBrown

    NeilBrown
     
  • 5bf295975   md: remove ability to explicit set an inactive array to 'clean'. ... Browse Code »

    Being able to write 'clean' to an 'array_state' of an inactive array
    to activate it in 'clean' mode is both unnecessary and inconvenient.

    It is unnecessary because the same can be achieved by writing
    'active'. This activates and array, but it still remains 'clean'
    until the first write.

    It is inconvenient because writing 'clean' is more often used to
    cause an 'active' array to revert to 'clean' mode (thus blocking
    any writes until a 'write-pending' is promoted to 'active').

    Allowing 'clean' to both activate an array and mark an active array as
    clean can lead to races: One program writes 'clean' to mark the
    active array as clean at the same time as another program writes
    'inactive' to deactivate (stop) and active array. Depending on which
    writes first, the array could be deactivated and immediately
    reactivated which isn't what was desired.

    So just disable the use of 'clean' to activate an array.

    This avoids a race that can be triggered with mdadm-3.0 and external
    metadata, so it suitable for -stable.

    Reported-by: Rafal Marszewski
    Acked-by: Dan Williams
    Cc:
    Signed-off-by: NeilBrown

    NeilBrown