1. 11 Aug, 2015 1 commit
  2. 17 Jun, 2013 1 commit
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  7. 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
  8. 06 Apr, 2009 1 commit
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  13. 18 Jul, 2007 1 commit
  14. 02 May, 2007 1 commit
    • Jean Delvare's avatar
      PCI: Cleanup the includes of <linux/pci.h> · 6473d160
      Jean Delvare authored
      I noticed that many source files include <linux/pci.h> while they do
      not appear to need it. Here is an attempt to clean it all up.
      
      In order to find all possibly affected files, I searched for all
      files including <linux/pci.h> but without any other occurence of "pci"
      or "PCI". I removed the include statement from all of these, then I
      compiled an allmodconfig kernel on both i386 and x86_64 and fixed the
      false positives manually.
      
      My tests covered 66% of the affected files, so there could be false
      positives remaining. Untested files are:
      
      arch/alpha/kernel/err_common.c
      arch/alpha/kernel/err_ev6.c
      arch/alpha/kernel/err_ev7.c
      arch/ia64/sn/kernel/huberror.c
      arch/ia64/sn/kernel/xpnet.c
      arch/m68knommu/kernel/dma.c
      arch/mips/lib/iomap.c
      arch/powerpc/platforms/pseries/ras.c
      arch/ppc/8260_io/enet.c
      arch/ppc/8260_io/fcc_enet.c
      arch/ppc/8xx_io/enet.c
      arch/ppc/syslib/ppc4xx_sgdma.c
      arch/sh64/mach-cayman/iomap.c
      arch/xtensa/kernel/xtensa_ksyms.c
      arch/xtensa/platform-iss/setup.c
      drivers/i2c/busses/i2c-at91.c
      drivers/i2c/busses/i2c-mpc.c
      drivers/media/video/saa711x.c
      drivers/misc/hdpuftrs/hdpu_cpustate.c
      drivers/misc/hdpuftrs/hdpu_nexus.c
      drivers/net/au1000_eth.c
      drivers/net/fec_8xx/fec_main.c
      drivers/net/fec_8xx/fec_mii.c
      drivers/net/fs_enet/fs_enet-main.c
      drivers/net/fs_enet/mac-fcc.c
      drivers/net/fs_enet/mac-fec.c
      drivers/net/fs_enet/mac-scc.c
      drivers/net/fs_enet/mii-bitbang.c
      drivers/net/fs_enet/mii-fec.c
      drivers/net/ibm_emac/ibm_emac_core.c
      drivers/net/lasi_82596.c
      drivers/parisc/hppb.c
      drivers/sbus/sbus.c
      drivers/video/g364fb.c
      drivers/video/platinumfb.c
      drivers/video/stifb.c
      drivers/video/valkyriefb.c
      include/asm-arm/arch-ixp4xx/dma.h
      sound/oss/au1550_ac97.c
      
      I would welcome test reports for these files. I am fine with removing
      the untested files from the patch if the general opinion is that these
      changes aren't safe. The tested part would still be nice to have.
      
      Note that this patch depends on another header fixup patch I submitted
      to LKML yesterday:
        [PATCH] scatterlist.h needs types.h
        http://lkml.org/lkml/2007/3/01/141Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      Cc: Badari Pulavarty <pbadari@us.ibm.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      6473d160
  15. 14 Feb, 2007 1 commit
    • Tim Schmielau's avatar
      [PATCH] remove many unneeded #includes of sched.h · cd354f1a
      Tim Schmielau authored
      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: default avatarTim Schmielau <tim@physik3.uni-rostock.de>
      Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cd354f1a
  16. 25 Mar, 2006 1 commit
  17. 23 Mar, 2006 2 commits
  18. 11 Jan, 2006 1 commit
  19. 05 Jan, 2006 4 commits
  20. 07 Sep, 2005 1 commit
  21. 05 Sep, 2005 1 commit
    • Jean Delvare's avatar
      [PATCH] hwmon: hwmon vs i2c, second round (01/11) · 9fc6adfa
      Jean Delvare authored
      Add support for kind-forced addresses to i2c_probe, like i2c_detect
      has for (essentially) hardware monitoring drivers.
      
      Note that this change will slightly increase the size of the drivers
      using I2C_CLIENT_INSMOD, with no immediate benefit. This is a
      requirement if we want to merge i2c_probe and i2c_detect though, and
      seems a reasonable price to pay in comparison with the previous
      cleanups which saved much more than that (such as the i2c-isa cleanup
      or the i2c address ranges removal.)
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      9fc6adfa
  22. 21 Jun, 2005 2 commits
    • Jean Delvare's avatar
      [PATCH] I2C: Merge unused address lists in some video drivers · 68cc9d0b
      Jean Delvare authored
      On top of my previous patch which removes the use of address ranges in
      video i2c drivers, this one can save an additional few bytes of memory.
      Most of these drivers which do not use I2C_CLIENT_INSMOD initialize the
      unused address lists in a less than optimal way. This patch simply
      optimizes this, by using a single one-element list instead of 3
      different lists with two elements each.
      
      This saves an average 63 bytes on these drivers.
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      
      diff -ruN linux-2.6.12-rc1-bk5.orig/drivers/media/video/adv7170.c linux-2.6.12-rc1-bk5/drivers/media/video/adv7170.c
      68cc9d0b
    • Jean Delvare's avatar
      [PATCH] I2C: Kill address ranges in non-sensors i2c chip drivers · b3d5496e
      Jean Delvare authored
      Some months ago, you killed the address ranges mechanism from all
      sensors i2c chip drivers (both the module parameters and the in-code
      address lists). I think it was a very good move, as the ranges can
      easily be replaced by individual addresses, and this allowed for
      significant cleanups in the i2c core (let alone the impressive size
      shrink for all these drivers).
      
      Unfortunately you did not do the same for non-sensors i2c chip drivers.
      These need the address ranges even less, so we could get rid of the
      ranges here as well for another significant i2c core cleanup. Here comes
      a patch which does just that. Since the process is exactly the same as
      what you did for the other drivers set already, I did not split this one
      in parts.
      
      A documentation update is included.
      
      The change saves 308 bytes in the i2c core, and an average 1382 bytes
      for chip drivers which use I2C_CLIENT_INSMOD, 126 bytes for those which
      do not.
      
      This change is required if we want to merge the sensors and non-sensors
      i2c code (and we want to do this).
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      
      Index: gregkh-2.6/Documentation/i2c/writing-clients
      ===================================================================
      b3d5496e
  23. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4