1. 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
  2. 02 Mar, 2010 1 commit
    • Márton Németh's avatar
      i2c: Make PCI device ids constant · 4111ecd2
      Márton Németh authored
      The id_table field of the struct pci_driver is constant in <linux/pci.h>
      so it is worth to make initialization data also constant.
      
      The semantic match that finds this kind of pattern is as follows:
      (http://coccinelle.lip6.fr/
      
      )
      
      // <smpl>
      @r@
      disable decl_init,const_decl_init;
      identifier I1, I2, x;
      @@
      	struct I1 {
      	  ...
      	  const struct I2 *x;
      	  ...
      	};
      @s@
      identifier r.I1, y;
      identifier r.x, E;
      @@
      	struct I1 y = {
      	  .x = E,
      	};
      @c@
      identifier r.I2;
      identifier s.E;
      @@
      	const struct I2 E[] = ... ;
      @depends on !c@
      identifier r.I2;
      identifier s.E;
      @@
      +	const
      	struct I2 E[] = ...;
      // </smpl>
      Signed-off-by: default avatarMárton Németh <nm127@freemail.hu>
      Cc: Julia Lawall <julia@diku.dk>
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      4111ecd2
  3. 05 May, 2009 1 commit
  4. 28 Mar, 2009 1 commit
  5. 26 Jan, 2009 1 commit
  6. 14 Jul, 2008 4 commits
    • Jean Delvare's avatar
      i2c: Check for ACPI resource conflicts · 54fb4a05
      Jean Delvare authored
      
      
      Check for ACPI resource conflicts in i2c bus drivers. I've included
      all recent SMBus master drivers for PC hardware.
      
      I've voluntarily left out:
      * Drivers that don't run on PCs: they can't conflict with ACPI.
      * Bit-banged bus device drivers: it's very unlikely that ACPI would
        deal with such buses.
      Signed-off-by: default avatarJean Delvare <jdelvare@suse.de>
      54fb4a05
    • Jean Delvare's avatar
      i2c: Let bus drivers add SPD to their class · 3401b2ff
      Jean Delvare authored
      
      
      Let general purpose I2C/SMBus bus drivers add SPD to their class. Once
      this is done, we will be able to tell the eeprom driver to only probe
      for SPD EEPROMs and similar on these buses.
      
      Note that I took a conservative approach here, adding I2C_CLASS_SPD to
      many drivers that have no idea whether they can host SPD EEPROMs or not.
      This is to make sure that the eeprom driver doesn't stop probing buses
      where SPD EEPROMs or equivalent live.
      
      So, bus driver maintainers and users should feel free to remove the SPD
      class from drivers those buses never have SPD EEPROMs or they don't
      want the eeprom driver to bind to them. Likewise, feel free to add the
      SPD class to any bus driver I might have missed.
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      3401b2ff
    • David Brownell's avatar
      i2c: Bus drivers return -Errno not -1 · 97140342
      David Brownell authored
      
      
      Tighten error paths used by various i2c adapters (mostly x86) so
      they return real fault/errno codes instead of a "-1" (which is
      most often interpreted as "-EPERM").  Build tested, with eyeball
      review.
      
      One minor initial goal is to have adapters consistently return
      the code "-ENXIO" when addressing a device doesn't get an ACK
      response, at least in the probe paths where they are already
      good at stifling related logspam.
      Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      97140342
    • Jean Delvare's avatar
      i2c-nforce2: Add support for multiplexing on the Tyan S4985 · 279e9024
      Jean Delvare authored
      
      
      Just like the Tyan S4882, the S4985 uses a multiplexer to give access
      to all 16 memory module SPD EEPROMs. This specific i2c-nforce2-s4985
      driver adds support for this. It is heavily based on the older
      i2c-amd756-s4882 driver.
      
      As more mainboards will use multiplexer chips, we will have to find a
      way to support them without having to write a new specfic driver for
      each. The recent changes to the i2c subsystem should help us, and the
      new gpio subsystem might help, too.
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      279e9024
  7. 18 May, 2008 1 commit
  8. 27 Jan, 2008 1 commit
  9. 13 Oct, 2007 3 commits
  10. 12 Jul, 2007 1 commit
  11. 01 May, 2007 2 commits
    • Jean Delvare's avatar
      i2c-nforce2: Add support for the MCP61 and MCP65 · f75803de
      Jean Delvare authored
      
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      Cc: Hans-Frieder Vogt <hfvogt@gmx.net>
      f75803de
    • David Brownell's avatar
      i2c: Shrink struct i2c_client · 2096b956
      David Brownell authored
      
      
      This shrinks the size of "struct i2c_client" by 40 bytes:
      
       - Substantially shrinks the string used to identify the chip type
       - The "flags" don't need to be so big
       - Removes some internal padding
      
      It also adds kerneldoc for that struct, explaining how "name" is really a
      chip type identifier; it's otherwise potentially confusing.
      
      Because the I2C_NAME_SIZE symbol was abused for both i2c_client.name
      and for i2c_adapter.name, this needed to affect i2c_adapter too.  The
      adapters which used that symbol now use the more-obviously-correct
      idiom of taking the size of that field.
      
      JD: Shorten i2c_adapter.name from 50 to 48 bytes while we're here, to
      avoid wasting space in padding.
      Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      2096b956
  12. 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
  13. 13 Feb, 2007 2 commits
  14. 10 Dec, 2006 1 commit
    • Hans-Frieder Vogt's avatar
      i2c: Cleanups to the i2c-nforce2 bus driver · ad04d5c3
      Hans-Frieder Vogt authored
      
      
      Summary of changes:
      
      - fixes:
         o legacy I/O region size is 64 bytes, not 8 bytes
      - general cleanup:
         o removed code for the unsupported I2C block data, block data,
            proc call and block proc call transfer modes
         o removed detail warnings about unsupported modes that are
           covered in a general warning (unsupported transaction...)
           anyway
         o removed necessity of a definition of struct i2c_adapter
         o moved definition of struct i2c_algorithm, making forward
           declarations of nforce2_access and nforce2_func unnecessary
      - minor changes:
         o in the description mention the nForce 5xx chipsets
         o changes my e-mail address in MODULE_AUTHOR
      
      Theses cleanups shrink the driver binary size from 4.0 kB to 2.7 kB
      on i386.
      Signed-off-by: default avatarHans-Frieder Vogt <hfvogt@gmx.net>
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      ad04d5c3
  15. 26 Sep, 2006 1 commit
  16. 22 Jun, 2006 1 commit
  17. 06 Jan, 2006 1 commit
  18. 11 Nov, 2005 1 commit
  19. 28 Oct, 2005 5 commits
  20. 09 Sep, 2005 1 commit
  21. 05 Sep, 2005 3 commits
  22. 22 Jun, 2005 1 commit
  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