1. 16 Aug, 2014 2 commits
  2. 19 Mar, 2014 1 commit
  3. 21 Jan, 2014 1 commit
    • Julia Lawall's avatar
      fujitsu-laptop: fix error return code · b30bb89f
      Julia Lawall authored
      These functions mix the use of result and error.  In acpi_fujitsu_add,
      result does not seem useful; it would seem reasonable to propagate the
      return value of acpi_bus_update_power in an error case.  On the other hand,
      in the case of acpi_fujitsu_hotkey_add, there is an initialization of
      result that can lead to what looks like a failure case, but that does not
      abort the function.  The variable result is kept for this case.
      
      A simplified version of the semantic match that finds this problem is as
      follows: (http://coccinelle.lip6.fr/
      
      )
      
      // <smpl>
      (
      if@p1 (\(ret < 0\|ret != 0\))
       { ... return ret; }
      |
      ret@p1 = 0
      )
      ... when != ret = e1
          when != &ret
      *if(...)
      {
        ... when != ret = e2
            when forall
       return ret;
      }
      
      // </smpl>
      
      Signed-off-by: default avatarJulia Lawall <Julia.Lawall@lip6.fr>
      Signed-off-by: default avatarMatthew Garrett <matthew.garrett@nebula.com>
      b30bb89f
  4. 23 Sep, 2013 3 commits
  5. 15 Jul, 2013 1 commit
  6. 25 Jan, 2013 1 commit
  7. 28 Mar, 2012 1 commit
  8. 27 May, 2011 1 commit
  9. 22 Mar, 2011 1 commit
    • Matthew Garrett's avatar
      backlight: add backlight type · bb7ca747
      Matthew Garrett authored
      
      
      There may be multiple ways of controlling the backlight on a given
      machine.  Allow drivers to expose the type of interface they are
      providing, making it possible for userspace to make appropriate policy
      decisions.
      
      Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
      Cc: Richard Purdie <rpurdie@rpsys.net>
      Cc: Chris Wilson <chris@chris-wilson.co.uk>
      Cc: David Airlie <airlied@linux.ie>
      Cc: Alex Deucher <alexdeucher@gmail.com>
      Cc: Ben Skeggs <bskeggs@redhat.com>
      Cc: Zhang Rui <rui.zhang@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      bb7ca747
  10. 12 Jan, 2011 1 commit
  11. 07 Jan, 2011 1 commit
  12. 16 Nov, 2010 1 commit
  13. 03 Aug, 2010 3 commits
  14. 20 May, 2010 1 commit
  15. 30 Mar, 2010 1 commit
    • Tejun Heo's avatar
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo authored
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit 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: default avatarTejun Heo <tj@kernel.org>
      Guess-its-ok-by: default avatarChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  16. 16 Mar, 2010 1 commit
  17. 23 Dec, 2009 1 commit
  18. 22 Dec, 2009 3 commits
  19. 09 Oct, 2009 1 commit
  20. 28 Aug, 2009 6 commits
  21. 07 Apr, 2009 2 commits
  22. 21 Feb, 2009 1 commit
  23. 19 Dec, 2008 1 commit
    • Len Brown's avatar
      create drivers/platform/x86/ from drivers/misc/ · 41b16dce
      Len Brown authored
      
      
      Move x86 platform specific drivers from drivers/misc/
      to a new home under drivers/platform/x86/.
      
      The community has been maintaining x86 vendor-specific
      platform specific drivers under /drivers/misc/ for a few years.
      The oldest ones started life under drivers/acpi.
      They moved out of drivers/acpi/ because they don't actually
      implement the ACPI specification, but either simply
      use ACPI, or implement vendor-specific ACPI extensions.
      
      In the future we anticipate...
      drivers/misc/ will go away.
      other architectures will create drivers/platform/<arch>
      
      Signed-off-by: default avatarLen Brown <len.brown@intel.com>
      41b16dce
  24. 11 Nov, 2008 1 commit
  25. 07 Nov, 2008 1 commit
  26. 06 Nov, 2008 1 commit
  27. 11 Oct, 2008 1 commit