Eric Lee / linux-smarc-t335x-v3.2

19 Aug, 2010

1 commit

18 Aug, 2010

2 commits

  • c7484cf46   m68knommu: formatting of pointers in printk() ... Browse Code »

    arch/m68knommu/kernel/process.c: formatting of pointers in printk()

    Use %p instead of %08x in printk().

    Signed-off-by: Kulikov Vasiliy
    Signed-off-by: Greg Ungerer

    Kulikov Vasiliy
     
  • 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
     

15 Aug, 2010

1 commit

14 Aug, 2010

1 commit

  • c78873252   Mark arguments to certain syscalls as being const ... Browse Code »

    Mark arguments to certain system calls as being const where they should be but
    aren't. The list includes:

    (*) The filename arguments of various stat syscalls, execve(), various utimes
    syscalls and some mount syscalls.

    (*) The filename arguments of some syscall helpers relating to the above.

    (*) The buffer argument of various write syscalls.

    Signed-off-by: David Howells
    Acked-by: David S. Miller
    Signed-off-by: Linus Torvalds

    David Howells
     

27 Jul, 2010

1 commit

  • 592913ecb   time: Kill off CONFIG_GENERIC_TIME ... Browse Code »

    Now that all arches have been converted over to use generic time via
    clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME
    config option and simplify the generic code.

    Signed-off-by: John Stultz
    LKML-Reference:
    Signed-off-by: Thomas Gleixner

    John Stultz
     

01 Jun, 2010

1 commit

  • 1f7389786   Merge branch 'for-35' of git://repo.or.cz/linux-kbuild ... Browse Code »

    * 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
    kbuild: Revert part of e8d400a to resolve a conflict
    kbuild: Fix checking of scm-identifier variable
    gconfig: add support to show hidden options that have prompts
    menuconfig: add support to show hidden options which have prompts
    gconfig: remove show_debug option
    gconfig: remove dbg_print_ptype() and dbg_print_stype()
    kconfig: fix zconfdump()
    kconfig: some small fixes
    add random binaries to .gitignore
    kbuild: Include gen_initramfs_list.sh and the file list in the .d file
    kconfig: recalc symbol value before showing search results
    .gitignore: ignore *.lzo files
    headerdep: perlcritic warning
    scripts/Makefile.lib: Align the output of LZO
    kbuild: Generate modules.builtin in make modules_install
    Revert "kbuild: specify absolute paths for cscope"
    kbuild: Do not unnecessarily regenerate modules.builtin
    headers_install: use local file handles
    headers_check: fix perl warnings
    export_report: fix perl warnings
    ...

    Linus Torvalds
     

24 May, 2010

5 commits

17 May, 2010

1 commit

  • 91d604172   m68knommu: Coldfire QSPI platform support ... Browse Code »

    Since Grant has added the coldfire-qspi driver to next-spi, here is the
    platform support for the parts that have qspi hardware. This sets up
    gpio to do the spi chip select using the default chip select pins; it should
    be trivial for boards that require different or additional spi chip selects to
    use other gpios as needed.

    Signed-off-by: Steven King
    Signed-off-by: Greg Ungerer

    Steven King
     

21 Apr, 2010

3 commits

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it 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: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

13 Mar, 2010

5 commits

  • 7a0fde8b3   m68knommu: use generic ptrace_resume code ... Browse Code »

    Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT,
    PTRACE_KILL and PTRACE_SINGLESTEP. m68knommu already defines the
    nessecary user_enable_single_step and user_disable_single_step functions
    for this.

    Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which
    it previously wasn't which is consistent with all architectures using the
    modern ptrace code.

    Signed-off-by: Christoph Hellwig
    Cc: Oleg Nesterov
    Cc: Roland McGrath
    Acked-by: Greg Ungerer
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     
  • b3c1e01a0   ptrace: use ptrace_request() in the remaining architectures ... Browse Code »

    Use ptrace_request() in the three remaining architectures that didn't use it
    (m68knommu, h8300, microblaze). This means:

    - ptrace_request now handles PTRACE_{PEEK,POKE}{TEXT,DATA} and PTRACE_DETATCH
    calls that were previously called directly, or in case of h8300 even open
    coded.
    - adds new support for PTRACE_SETOPTIONS/PTRACE_GETEVENTMSG/
    PTRACE_GETSIGINFO/PTRACE_SETSIGINFO

    Signed-off-by: Christoph Hellwig
    Cc: Geert Uytterhoeven
    Cc: Yoshinori Sato
    Cc: Oleg Nesterov
    Cc: Michal Simek
    Acked-by: Greg Ungerer
    Acked-by: Roland McGrath
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     
  • 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
     
  • a4679373c   Add generic sys_old_mmap() ... Browse Code »

    Add a generic implementation of the old mmap() syscall, which expects its
    argument in a memory block and switch all architectures over to use it.

    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: Greg Ungerer
    Acked-by: David Howells
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     
  • 5d0e52830   Add generic sys_old_select() ... Browse Code »

    Add a generic implementation of the old select() syscall, which expects
    its argument in a memory block and switch all architectures over to use
    it.

    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
    Acked-by: Andreas Schwab
    Acked-by: Russell King
    Acked-by: Greg Ungerer
    Acked-by: David Howells
    Cc: Andreas Schwab
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     

03 Mar, 2010

2 commits

28 Feb, 2010

2 commits

17 Jan, 2010

1 commit

  • 355e8e8d1   m68knommu: fix invalid flags on coldfire pit clocksource ... Browse Code »

    The m68knommu coldfire pit clocksource looks like it was incorrectly
    marked as a continuous clocksource. Running with it marked as a
    continuous clocksource could cause hangs when the system switches to
    highres mode or enables nohz.

    This patch removes the CLOCK_SOURCE_IS_CONTINUOUS flag on the coldfire pit
    clocksource. This will disallow systems using this clocksource from
    entering oneshot mode (disabling highres timers and nohz).

    Signed-off-by: John Stultz
    Acked-by: Greg Ungerer
    Cc: Steven King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    john stultz
     

11 Dec, 2009

1 commit

10 Dec, 2009

2 commits

  • 701791cc3   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu ... Browse Code »

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
    m68knommu: export clk_* symbols in clk.c
    m68knommu: Split the .init section into INIT_TEXT_SECTION and INIT_DATA_SECTION.
    m68knommu: Move __init_end out of the .init section.
    m68knommu: Move __init_begin out of the .init section.
    m68knommu: Use more macros inside the .init section.
    m68knommu: Use INIT_TASK_DATA and CACHELINE_ALIGNED_DATA.
    m68knommu: Make THREAD_SIZE available to assembly files.
    m68knommu: Don't hardcode the value of PAGE_SIZE in the linker script.
    m68knommu: rename BSS define in linker script
    m68knommu: add a task_pt_regs() macro
    m68knommu: define arch_has_single_step() and friends
    m68knommu: add uboot commandline argument passing support
    m68knommu: Coldfire GPIO corrections
    m68knommu: move mcf_remove to .devexit.text

    Fixed up (?) conflict in arch/m68k/include/asm/ptrace.h

    Linus Torvalds
     
  • 2588465ba   Merge branch 'bkl-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip ... Browse Code »

    * 'bkl-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
    mn10300: Remove the BKL from sys_execve
    m68knommu: Remove the BKL from sys_execve
    m68k: Remove the BKL from sys_execve
    h83000: Remove BKL from sys_execve
    frv: Remove the BKL from sys_execve
    blackfin: Remove the BKL from sys_execve
    um: Remove BKL from mmapper
    um: Remove BKL from random
    s390: Remove BKL from prng

    Linus Torvalds
     

06 Dec, 2009

1 commit

04 Dec, 2009

9 commits