Eric Lee / smarc-fsl-linux-kernel

09 Feb, 2008

1 commit

  • 8b5f68836   byteorder: move le32_add_cpu & friends from OCFS2 to core ... Browse Code »

    This patchset moves le*_add_cpu and be*_add_cpu functions from OCFS2 to core
    header (1st), converts ext3 filesystem to this API (2nd) and replaces XFS
    different named functions with new ones (3rd).

    There are many places where these functions will be useful. Just look at:
    grep -r 'cpu_to_[ble12346]*([ble12346]*_to_cpu.*[-+]' linux-src/ Patch for
    ext3 is an example how conversions will probably look like.

    This patch:

    - move inline functions which add native byte order variable to
    little/big endian variable to core header
    * le16_add_cpu(__le16 *var, u16 val)
    * le32_add_cpu(__le32 *var, u32 val)
    * le64_add_cpu(__le64 *var, u64 val)
    * be32_add_cpu(__be32 *var, u32 val)
    - add for completeness:
    * be16_add_cpu(__be16 *var, u16 val)
    * be64_add_cpu(__be64 *var, u64 val)

    Signed-off-by: Marcin Slusarz
    Acked-by: Mark Fasheh
    Cc: David Chinner
    Cc: Timothy Shimmin
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Marcin Slusarz
     

09 May, 2007

2 commits

  • ee7b9e370   Fix compilation of drivers with -O0 ... Browse Code »

    It is sometimes useful to compile individual drivers with optimization
    disabled for easier debugging. Currently drivers which use htonl() and
    similar functions don't compile with -O0. This patch fixes it. It also
    removes obsolete and misleading comments. This header is not for
    userspace, so we don't have to care about strange programs these comments
    mention.

    (akpm: -O0 probably isn't a good idea, but this code looks pretty crufty and
    unuseful)

    Signed-off-by: Michal Schmidt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Michal Schmidt
     
  • 8e2c20023   Fix constant folding and poor optimization in byte swapping code ... Browse Code »

    Constant folding does not work for the swabXX() byte swapping functions,
    and the C versions optimize poorly.

    Attempting to initialize a global variable to swab16(0x1234) or put
    something like "case swab32(42):" in a switch statement will not compile.
    It can work, swab.h just isn't doing it correctly. This patch fixes that.

    Contrary to the comment in asm-i386/byteorder.h, gcc does not recognize the
    "C" version of swab16 and turn it into efficient code. gcc can do this,
    just not with the current code. The simple function:

    u16 foo(u16 x) { return swab16(x); }

    Would compile to:
    movzwl %ax, %eax
    movl %eax, %edx
    shrl $8, %eax
    sall $8, %edx
    orl %eax, %edx

    With this patch, it will compile to:
    rolw $8, %ax

    I also attempted to document the maze different macros/inline functions
    that are used to create the final product.

    Signed-off-by: Trent Piepho
    Cc: Francois-Rene Rideau
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Trent Piepho
     

12 Feb, 2007

2 commits

19 Sep, 2006

1 commit

18 Jun, 2006

1 commit

09 Jan, 2006

1 commit

  • a13656470   [PATCH] remove gcc-2 checks ... Browse Code »

    Remove various things which were checking for gcc-1.x and gcc-2.x compilers.

    From: Adrian Bunk

    Some documentation updates and removes some code paths for gcc < 3.2.

    Acked-by: Russell King
    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

20 Sep, 2005

1 commit

29 Jun, 2005

1 commit

  • 05133fc49   [PATCH] swabb.h warning fixes ... Browse Code »

    In file included from drivers/media/dvb/ttpci/av7110_hw.c:38:
    include/linux/byteorder/swabb.h:96: warning: type qualifiers ignored on function return type
    include/linux/byteorder/swabb.h:110: warning: type qualifiers ignored on function return type
    In file included from drivers/media/dvb/ttpci/av7110_v4l.c:36:
    include/linux/byteorder/swabb.h:96: warning: type qualifiers ignored on function return type
    include/linux/byteorder/swabb.h:110: warning: type qualifiers ignored on function return type
    In file included from drivers/media/dvb/ttpci/av7110_av.c:37:
    include/linux/byteorder/swabb.h:96: warning: type qualifiers ignored on function return type
    include/linux/byteorder/swabb.h:110: warning: type qualifiers ignored on function return type
    drivers/isdn/icn/icn.c:719:4: warning: #warning TODO test headroom or use skb->nb to flag ACK
    In file included from drivers/media/dvb/ttpci/av7110_ca.c:39:
    include/linux/byteorder/swabb.h:96: warning: type qualifiers ignored on function return type
    include/linux/byteorder/swabb.h:110: warning: type qualifiers ignored on function return type
    In file included from drivers/media/dvb/ttpci/av7110.c:41:
    include/linux/byteorder/swabb.h:96: warning: type qualifiers ignored on function return type
    include/linux/byteorder/swabb.h:110: warning: type qualifiers ignored on function return type

    Does declaring a function to return a const value actually mean something to
    gcc?

    Dunno. Kill it and replace sone `__inline__'s with `inline' too.

    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    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!

    Linus Torvalds