Eric Lee / smarc-fsl-linux-kernel

14 Jan, 2011

1 commit

27 Jul, 2010

1 commit

  • 2c39c9e14   ARM: Fix section build warnings for AMBA drivers ... Browse Code »

    Found in the Versatile build:

    WARNING: drivers/built-in.o(.data+0x14c): Section mismatch in reference from the variable pl061_gpio_driver to the (unknown reference) .init.data:(unknown)
    The variable pl061_gpio_driver references
    the (unknown reference) __initdata (unknown)

    WARNING: drivers/built-in.o(.data+0x40f8): Section mismatch in reference from the variable pl011_driver to the (unknown reference) .init.data:(unknown)
    The variable pl011_driver references
    the (unknown reference) __initdata (unknown)

    WARNING: drivers/built-in.o(.data+0x5ab4): Section mismatch in reference from the variable pl031_driver to the (unknown reference) .init.data:(unknown)
    The variable pl031_driver references
    the (unknown reference) __initdata (unknown)

    Basically, amba_id structures must not be __initdata. Also fix:

    WARNING: drivers/built-in.o(.data+0x138): Section mismatch in reference from the variable pl061_gpio_driver to the function .init.text:pl061_probe()
    The variable pl061_gpio_driver references
    the function __init pl061_probe()

    which is an incorrectly annotated probe function. Fix it to reflect
    the other AMBA bus probe functions by removing the __init attributation.

    Signed-off-by: Russell King

    Russell King
     

28 May, 2010

1 commit

30 Apr, 2010

1 commit

22 Apr, 2010

2 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
     

07 Mar, 2010

1 commit

  • 984b3f574   bitops: rename for_each_bit() to for_each_set_bit() ... Browse Code »

    Rename for_each_bit to for_each_set_bit in the kernel source tree. To
    permit for_each_clear_bit(), should that ever be added.

    The patch includes a macro to map the old for_each_bit() onto the new
    for_each_set_bit(). This is a (very) temporary thing to ease the migration.

    [akpm@linux-foundation.org: add temporary for_each_bit()]
    Suggested-by: Alexey Dobriyan
    Suggested-by: Andrew Morton
    Signed-off-by: Akinobu Mita
    Cc: "David S. Miller"
    Cc: Russell King
    Cc: David Woodhouse
    Cc: Artem Bityutskiy
    Cc: Stephen Rothwell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     

01 Jul, 2009

2 commits

20 Jun, 2009

1 commit

  • 1e9c28599   gpio: driver for PrimeCell PL061 GPIO controller ... Browse Code »

    This is a driver for the ARM PrimeCell PL061 GPIO AMBA peripheral. The
    driver is implemented using the gpiolib framework.

    This driver also includes support for the use of the PL061 as an interrupt
    controller (secondary).

    Signed-off-by: Baruch Siach
    Cc: David Brownell
    Acked-by: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Baruch Siach