1. 02 Aug, 2011 2 commits
  2. 22 Mar, 2011 1 commit
  3. 02 Mar, 2011 1 commit
  4. 28 Feb, 2011 1 commit
    • Rafael J. Wysocki's avatar
      ACPI: Fix build for CONFIG_NET unset · af06216a
      Rafael J. Wysocki authored
      Several ACPI drivers fail to build if CONFIG_NET is unset, because
      they refer to things depending on CONFIG_THERMAL that in turn depends
      on CONFIG_NET.  However, CONFIG_THERMAL doesn't really need to depend
      on CONFIG_NET, because the only part of it requiring CONFIG_NET is
      the netlink interface in thermal_sys.c.
      
      Put the netlink interface in thermal_sys.c under #ifdef CONFIG_NET
      and remove the dependency of CONFIG_THERMAL on CONFIG_NET from
      drivers/thermal/Kconfig.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Acked-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Len Brown <lenb@kernel.org>
      Cc: Stephen Rothwell <sfr@canb.auug.org.au>
      Cc: Luming Yu <luming.yu@intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      af06216a
  5. 11 Jan, 2011 1 commit
  6. 30 Nov, 2010 1 commit
  7. 07 Apr, 2010 1 commit
  8. 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
  9. 15 Dec, 2009 1 commit
  10. 05 Nov, 2009 4 commits
  11. 26 Aug, 2009 1 commit
    • Michael Brunner's avatar
      thermal_sys: check get_temp return value · 0d288162
      Michael Brunner authored
      The return value of the get_temp function is not checked when doing a
      thermal zone update.  This may lead to a critical shutdown if get_temp
      fails and the content of the temp variable is incorrectly set higher than
      the critical trip point.
      
      This has been observed on a system with incorrect ACPI implementation
      where the corresponding methods were not serialized and therefore
      sometimes triggered ACPI errors (AE_ALREADY_EXISTS).  The following
      critical shutdowns indicated a temperature of 2097 C, which was obviously
      wrong.
      
      The patch adds a return value check that jumps over all trip point
      evaluations printing a warning if get_temp fails.  The trip points are
      evaluated again on the next polling interval with successful get_temp
      execution.
      Signed-off-by: default avatarMichael Brunner <mibru@gmx.de>
      Acked-by: default avatarZhang Rui <rui.zhang@intel.com>
      Cc: Len Brown <lenb@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      0d288162
  12. 15 Jun, 2009 1 commit
  13. 14 May, 2009 1 commit
  14. 27 Mar, 2009 1 commit
    • Matthew Garrett's avatar
      thermal: support forcing support for passive cooling · 03a971a2
      Matthew Garrett authored
      Due to poor thermal design or Linux driving hardware outside its thermal
      envelope, some systems will reach critical temperature and shut down
      under high load. This patch adds support for forcing a polling-based
      passive trip point if the firmware doesn't provide one. The assumption
      is made that the processor is the most practical means to reduce the
      dynamic heat generation, so hitting the passive thermal limit will cause
      the CPU to be throttled until the temperature stabalises around the
      defined value.
      
      UI is provided via a "passive" sysfs entry in the thermal zone
      directory. It accepts a decimal value in millidegrees celsius, or "0" to
      disable the functionality. Default behaviour is for this functionality
      to be disabled.
      Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
      Signed-off-by: default avatarLen Brown <len.brown@intel.com>
      03a971a2
  15. 20 Feb, 2009 2 commits
  16. 06 Jan, 2009 1 commit
  17. 25 Jun, 2008 1 commit
  18. 29 Apr, 2008 3 commits
  19. 15 Apr, 2008 1 commit
  20. 17 Mar, 2008 1 commit
  21. 12 Mar, 2008 1 commit
  22. 15 Feb, 2008 2 commits
  23. 07 Feb, 2008 1 commit
  24. 01 Feb, 2008 1 commit