Eric Lee / smarc-fsl-linux-kernel

09 Sep, 2007

1 commit

11 Jul, 2007

2 commits

24 May, 2007

1 commit

11 May, 2007

3 commits

05 May, 2007

2 commits

26 Apr, 2007

2 commits

27 Feb, 2007

1 commit

15 Feb, 2007

1 commit

  • cd354f1ae   [PATCH] remove many unneeded #includes of sched.h ... Browse Code »

    After Al Viro (finally) succeeded in removing the sched.h #include in module.h
    recently, it makes sense again to remove other superfluous sched.h includes.
    There are quite a lot of files which include it but don't actually need
    anything defined in there. Presumably these includes were once needed for
    macros that used to live in sched.h, but moved to other header files in the
    course of cleaning it up.

    To ease the pain, this time I did not fiddle with any header files and only
    removed #includes from .c-files, which tend to cause less trouble.

    Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
    arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
    allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
    configs in arch/arm/configs on arm. I also checked that no new warnings were
    introduced by the patch (actually, some warnings are removed that were emitted
    by unnecessarily included header files).

    Signed-off-by: Tim Schmielau
    Acked-by: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tim Schmielau
     

13 Feb, 2007

1 commit

  • 2b8693c06   [PATCH] mark struct file_operations const 3 ... Browse Code »

    Many struct file_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

09 Jan, 2007

3 commits

21 Dec, 2006

1 commit

08 Dec, 2006

1 commit

  • f89d75f22   [PATCH] lockdep: annotate bcsp driver ... Browse Code »

    =============================================
    [ INFO: possible recursive locking detected ]
    2.6.18-1.2699.fc6 #1
    ---------------------------------------------
    swapper/0 is trying to acquire lock:
    (&list->lock#3){+...}, at: [] skb_dequeue+0x12/0x43

    but task is already holding lock:
    (&list->lock#3){+...}, at: [] bcsp_dequeue+0x6a/0x11e [hci_uart]

    Two different list locks nest, annotate so.

    Signed-off-by: Peter Zijlstra
    Acked-by: Marcel Holtmann
    Acked-by: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Peter Zijlstra
     

06 Dec, 2006

1 commit

05 Dec, 2006

1 commit

  • af2b3b503   [PATCH] pcmcia: conf.ConfigBase and conf.Present consolidation ... Browse Code »

    struct pcmcia_device *p_dev->conf.ConfigBase and .Present are set in almost
    all PCMICA driver right at the beginning, using the same calls but slightly
    different implementations. Unfiy this in the PCMCIA core.

    Includes a small bugfix ("drivers/net/pcmcia/xirc2ps_cs.c: remove unused
    label") from and Signed-off-by Adrian Bunk

    Signed-off-by: Dominik Brodowski

    Dominik Brodowski
     

22 Nov, 2006

1 commit

31 Oct, 2006

1 commit

  • 7259f0d05   [PATCH] lockdep: annotate DECLARE_WAIT_QUEUE_HEAD ... Browse Code »

    kernel: INFO: trying to register non-static key.
    kernel: the code is fine but needs lockdep annotation.
    kernel: turning off the locking correctness validator.
    kernel: [] show_trace_log_lvl+0x58/0x16a
    kernel: [] show_trace+0xd/0x10
    kernel: [] dump_stack+0x19/0x1b
    kernel: [] __lock_acquire+0xf0/0x90d
    kernel: [] lock_acquire+0x4b/0x6b
    kernel: [] _spin_lock_irqsave+0x22/0x32
    kernel: [] prepare_to_wait+0x17/0x4b
    kernel: [] lpfc_do_work+0xdd/0xcc2 [lpfc]
    kernel: [] kthread+0xc3/0xf2
    kernel: [] kernel_thread_helper+0x5/0xb

    Another case of non-static lockdep keys; duplicate the paradigm set by
    DECLARE_COMPLETION_ONSTACK and introduce DECLARE_WAIT_QUEUE_HEAD_ONSTACK.

    Signed-off-by: Peter Zijlstra
    Cc: Greg KH
    Cc: Markus Lidel
    Acked-by: Ingo Molnar
    Cc: Arjan van de Ven
    Cc: James Bottomley
    Cc: Marcel Holtmann
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Peter Zijlstra
     

20 Oct, 2006

2 commits

16 Oct, 2006

1 commit

05 Oct, 2006

1 commit

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

29 Sep, 2006

4 commits

25 Jul, 2006

4 commits

13 Jul, 2006

1 commit

11 Jul, 2006

1 commit

  • 73ca66b97   [PATCH] release_firmware() fixes ... Browse Code »

    Use release_firmware() to free requested resources.

    According to Documentation/firmware_class/README the request_firmware()
    call should be followed by a release_firmware(). Some drivers do not
    however free the firmware previously allocated with request_firmware().
    This patch tries to fix this by making sure that release_firmware() is used
    as expected.

    Signed-off-by: Magnus Damm
    Acked-by: Marcel Holtmann
    Cc: Mauro Carvalho Chehab
    Cc: "John W. Linville"
    Cc: Greg KH
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Magnus Damm
     

04 Jul, 2006

3 commits