1. 25 5月, 2010 1 次提交
  2. 30 3月, 2010 1 次提交
    • T
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo 提交于
      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: NTejun Heo <tj@kernel.org>
      Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  3. 08 3月, 2010 1 次提交
    • U
      platform-drivers: move probe to .devinit.text in drivers/video · c2e13037
      Uwe Kleine-König 提交于
      A pointer to a probe callback is passed to the core via
      platform_driver_register and so the function must not disappear when the
      .init sections are discarded.  Otherwise (if also having HOTPLUG=y)
      unbinding and binding a device to the driver via sysfs will result in an
      oops as does a device being registered late.
      
      An alternative to this patch is using platform_driver_probe instead of
      platform_driver_register plus removing the pointer to the probe function
      from the struct platform_driver.
      Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
      Cc: Adrian Bunk <bunk@stusta.de>
      Cc: Alberto Mardegan <mardy@users.sourceforge.net>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andriy Skulysh <askulysh@gmail.com>
      Cc: Antonino Daplas <adaplas@gmail.com>
      Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
      Cc: Ben Dooks <ben-linux@fluff.org>
      Cc: Chandramouli Narayanan <mouli@linux.intel.com>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: Frans Pop <elendil@planet.nl>
      Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
      Cc: Greg Kroah-Hartman <gregkh@suse.de>
      Cc: Helge Deller <deller@gmx.de>
      Cc: Huang Ying <ying.huang@intel.com>
      Cc: Ian Molton <spyro@f2s.com>
      Cc: Joshua Kinard <kumba@gentoo.org>
      Cc: Kaj-Michael Lang <milang@tal.org>
      Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
      Cc: linux-fbdev-devel@lists.sourceforge.net
      Cc: Maciej W. Rozycki <macro@linux-mips.org>
      Cc: Magnus Damm <damm@igel.co.jp>
      Cc: Martin Michlmayr <tbm@cyrius.com>
      Cc: Matthias Kaehlcke <matthias@kaehlcke.net>
      Cc: Paul Mundt <lethal@linux-sh.org>
      Cc: Pavel Machek <pavel@suse.cz>
      Cc: Philipp Zabel <philipp.zabel@gmail.com>
      Cc: Richard Purdie <rpurdie@rpsys.net>
      Cc: Roel Kluin <roel.kluin@gmail.com>
      Cc: Roland Stigge <stigge@antcom.de>
      Cc: Russell King <rmk+kernel@arm.linux.org.uk>
      Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
      Cc: Vincent Sanders <vince@simtec.co.uk>
      Cc: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
      Acked-by: NRalf Baechle <ralf@linux-mips.org>
      Acked-by: NArnaud Patard <arnaud.patard@rtp-net.org>
      Acked-by: NJames Simmons <jsimmons@infradead.org>
      Acked-by: NPeter Jones <pjones@redhat.com>
      Acked-by: NJaya Kumar <jayakumar.lkml@gmail.com>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      c2e13037
  4. 09 7月, 2009 1 次提交
  5. 01 7月, 2009 1 次提交
    • K
      fbdev: add mutex for fb_mmap locking · 537a1bf0
      Krzysztof Helt 提交于
      Add a mutex to avoid a circular locking problem between the mm layer
      semaphore and fbdev ioctl mutex through the fb_mmap() call.
      
      Also, add mutex to all places where smem_start and smem_len fields change
      so the mutex inside the fb_mmap() is actually used.  Changing of these
      fields before calling the framebuffer_register() are not mutexed.
      
      This is 2.6.31 material.  It removes one lockdep (fb_mmap() and
      register_framebuffer()) but there is still another one (fb_release() and
      register_framebuffer()).  It also cleans up handling of the smem_start and
      smem_len fields used by mutexed section of the fb_mmap().
      Signed-off-by: NKrzysztof Helt <krzysztof.h1@wp.pl>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
      Cc: <stable@kernel.org>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      537a1bf0
  6. 05 7月, 2008 1 次提交
  7. 28 4月, 2008 1 次提交
  8. 24 5月, 2007 1 次提交
  9. 01 4月, 2006 1 次提交
  10. 14 11月, 2005 1 次提交
  11. 10 11月, 2005 1 次提交
  12. 07 11月, 2005 1 次提交
    • A
      [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon · c465e05a
      Antonino A. Daplas 提交于
      According to Jon Smirl, filling in the field fb_cursor with soft_cursor for
      drivers that do not support hardware cursors is redundant.  The soft_cursor
      function is usable by all drivers because it is just a wrapper around
      fb_imageblit.  And because soft_cursor is an fbcon-specific hook, the file is
      moved to the console directory.
      
      Thus, drivers that do not support hardware cursors can leave the fb_cursor
      field blank.  For drivers that do, they can fill up this field with their own
      version.
      
      The end result is a smaller code size.  And if the framebuffer console is not
      loaded, module/kernel size is also reduced because the soft_cursor module will
      also not be loaded.
      Signed-off-by: NAntonino Daplas <adaplas@pol.net>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      c465e05a
  13. 30 10月, 2005 1 次提交
  14. 29 10月, 2005 1 次提交
  15. 08 9月, 2005 1 次提交
    • R
      [PATCH] w100fb: Rewrite for platform independence · aac51f09
      Richard Purdie 提交于
      The code w100fb was based on was horribly Sharp SL-C7x0 specific and there
      was little else that could be done as I had no access to anything else with
      a w100 in it.  There is no real documentation about this chipset available.
      
      Ian Molton has access to other platforms with the w100 (Toshiba e-series)
      and so between us, we've improved w100fb and made it platform independent.
      Ian Molton also added support for the very similar w3220 and w3200
      chipsets.
      
      There are a lot of changes here and it nearly amounts to a rewrite of the
      driver but it has been extensively tested and is being used in preference
      to the original driver in the Zaurus community.  I'd therefore like to
      update the mainline code to reflect this.
      Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
      Acked-by: NAntonino Daplas <adaplas@pol.net>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      aac51f09
  16. 21 6月, 2005 1 次提交
  17. 17 4月, 2005 2 次提交