Doug / smarc-fsl-linux-kernel

18 Nov, 2010

1 commit

11 Sep, 2010

1 commit

09 Sep, 2010

1 commit

18 Aug, 2010

1 commit

  • d7627467b   Make do_execve() take a const filename pointer ... Browse Code »

    Make do_execve() take a const filename pointer so that kernel_execve() compiles
    correctly on ARM:

    arch/arm/kernel/sys_arm.c:88: warning: passing argument 1 of 'do_execve' discards qualifiers from pointer target type

    This also requires the argv and envp arguments to be consted twice, once for
    the pointer array and once for the strings the array points to. This is
    because do_execve() passes a pointer to the filename (now const) to
    copy_strings_kernel(). A simpler alternative would be to cast the filename
    pointer in do_execve() when it's passed to copy_strings_kernel().

    do_execve() may not change any of the strings it is passed as part of the argv
    or envp lists as they are some of them in .rodata, so marking these strings as
    const should be fine.

    Further kernel_execve() and sys_execve() need to be changed to match.

    This has been test built on x86_64, frv, arm and mips.

    Signed-off-by: David Howells
    Tested-by: Ralf Baechle
    Acked-by: Russell King
    Signed-off-by: Linus Torvalds

    David Howells
     

13 Mar, 2010

1 commit

  • baed7fc9b   Add generic sys_ipc wrapper ... Browse Code »

    Add a generic implementation of the ipc demultiplexer syscall. Except for
    s390 and sparc64 all implementations of the sys_ipc are nearly identical.

    There are slight differences in the types of the parameters, where mips
    and powerpc as the only 64-bit architectures with sys_ipc use unsigned
    long for the "third" argument as it gets casted to a pointer later, while
    it traditionally is an "int" like most other paramters. frv goes even
    further and uses unsigned long for all parameters execept for "ptr" which
    is a pointer type everywhere. The change from int to unsigned long for
    "third" and back to "int" for the others on frv should be fine due to the
    in-register calling conventions for syscalls (we already had a similar
    issue with the generic sys_ptrace), but I'd prefer to have the arch
    maintainers looks over this in details.

    Except for that h8300, m68k and m68knommu lack an impplementation of the
    semtimedop sub call which this patch adds, and various architectures have
    gets used - at least on i386 it seems superflous as the compat code on
    x86-64 and ia64 doesn't even bother to implement it.

    [akpm@linux-foundation.org: add sys_ipc to sys_ni.c]
    Signed-off-by: Christoph Hellwig
    Cc: Ralf Baechle
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mundt
    Cc: Jeff Dike
    Cc: Hirokazu Takata
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Reviewed-by: H. Peter Anvin
    Cc: Al Viro
    Cc: Arnd Bergmann
    Cc: Heiko Carstens
    Cc: Martin Schwidefsky
    Cc: "Luck, Tony"
    Cc: James Morris
    Cc: Andreas Schwab
    Acked-by: Jesper Nilsson
    Acked-by: Russell King
    Acked-by: David Howells
    Acked-by: Kyle McMartin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     

11 Dec, 2009

4 commits

05 Dec, 2008

1 commit

  • d670bd4f8   sparc: prepare kernel/ for unification ... Browse Code »

    o sparc32 files with identical names to sparc64 renamed to _32.S
    o introduced a few Kconfig helpers to simplify Makefile logic
    o refactored Makefile to prepare for unification
    - use obj-$(CONFIG_SPARC32) for sparc32 specific files
    - use _$(BITS) for files where sparc64 has a _64 variant
    - sparc64 directly include a few files where sparc32 builds them,
    refer to these files directly (no BITS)
    - sneaked in -Werror as used by sparc64
    o modified sparc/Makefile to use the new names for head/init_task

    Signed-off-by: Sam Ravnborg
    Signed-off-by: David S. Miller

    Sam Ravnborg