Eric Lee / smarc-fsl-linux-kernel

22 Dec, 2011

1 commit

  • edbaa603e   driver-core: remove sysdev.h usage. ... Browse Code »

    The sysdev.h file should not be needed by any in-kernel code, so remove
    the .h file from these random files that seem to still want to include
    it.

    The sysdev code will be going away soon, so this include needs to be
    removed no matter what.

    Cc: Jiandong Zheng
    Cc: Scott Branden
    Cc: Russell King
    Cc: Kukjin Kim
    Cc: David Brown
    Cc: Daniel Walker
    Cc: Bryan Huntsman
    Cc: Ben Dooks
    Cc: Wan ZongShun
    Cc: Haavard Skinnemoen
    Cc: Hans-Christian Egtvedt
    Cc: Guan Xuetao
    Cc: "Venkatesh Pallipadi
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Cc: "H. Peter Anvin"
    Cc: Grant Likely
    Cc: Richard Purdie
    Cc: Matthew Garrett
    Signed-off-by: Kay Sievers

    Kay Sievers
     

01 Nov, 2011

1 commit

31 Jan, 2011

1 commit

12 Nov, 2010

1 commit

  • 5ada28bf7   led-class: always implement blinking ... Browse Code »
    1

    Currently, blinking LEDs can be awkward because it is not guaranteed that
    all LEDs implement blinking. The trigger that wants it to blink then
    needs to implement its own timer solution.

    Rather than require that, add led_blink_set() API that triggers can use.
    This function will attempt to use hw blinking, but if that fails
    implements a timer for it. To stop blinking again, brightness_set() also
    needs to be wrapped into API that will stop the software blink.

    As a result of this, the timer trigger becomes a very trivial one, and
    hopefully we can finally see triggers using blinking as well because it's
    always easy to use.

    Signed-off-by: Johannes Berg
    Acked-by: Richard Purdie
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Johannes Berg
     

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

06 Apr, 2009

1 commit

23 Jul, 2008

1 commit

25 Apr, 2008

2 commits

  • 4d404fd5c   leds: Cleanup various whitespace and code style issues ... Browse Code »

    Break the lines which were more than 80 characters into more
    lines; replace SPACEs with TABs; correct ident at switch-case;
    change character encoding from ISO-8859-2 to UTF-8.

    The order of the functions in led-triggers.c changed in order
    the similar functions can still be together under titles
    "Used by LED Class", "LED Trigger Interface" and "Simple
    LED Tigger Interface" as was grouped before when exported
    with EXPORT_SYMBOL.

    Signed-off-by: Márton Németh
    Signed-off-by: Richard Purdie

    Németh Márton
     
  • 0013b23d6   leds: disable triggers on brightness set ... Browse Code »

    Disable any active triggers when the brightness attribute is
    set to zero.

    Signed-off-by: Henrique de Moraes Holschuh
    Signed-off-by: Márton Németh
    Signed-off-by: Richard Purdie

    Németh Márton
     

01 Jan, 2008

1 commit

07 Dec, 2007

1 commit

16 Jul, 2007

3 commits

01 Oct, 2006

1 commit

  • e3e5fc91d   [PATCH] leds: turn LED off when changing triggers ... Browse Code »

    I was playing with LED triggers when I noticed that changing from heartbeat
    (or ide-disk) to "none" at the right moment would leave the LED stuck on.
    This is easy to reproduce by doing "find / >/dev/null" with the ide-disk
    trigger enabled and then switching to "none".

    Here is a patch that fixes the problem by explicitly turning the LED off
    after removing the existing trigger.

    Signed-off-by: Paul Collins
    Acked-by: Richard Purdie
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Collins
     

01 Jul, 2006

1 commit

28 Jun, 2006

1 commit

  • 34af946a2   [PATCH] spin/rwlock init cleanups ... Browse Code »

    locking init cleanups:

    - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
    - convert rwlocks in a similar manner

    this patch was generated automatically.

    Motivation:

    - cleanliness
    - lockdep needs control of lock initialization, which the open-coded
    variants do not give
    - it's also useful for -rt and for lock debugging in general

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

    Ingo Molnar
     

01 Apr, 2006

1 commit

  • c3bc9956e   [PATCH] LED: add LED trigger tupport ... Browse Code »

    Add support for LED triggers to the LED subsystem. "Triggers" are events
    which change the state of an LED. Two kinds of trigger are available, simple
    ones which can be added to exising code with minimum disruption and complex
    ones for implementing new or more complex functionality.

    Signed-off-by: Richard Purdie
    Cc: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Richard Purdie