Eric Lee / smarc-fsl-linux-kernel

29 Mar, 2011

2 commits

10 Mar, 2011

1 commit

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
     

09 Dec, 2009

1 commit

  • 40d50cf7c   powerpc: Make "intspec" pointers in irq_host->xlate() const ... Browse Code »

    Writing a driver using SCLPC on the MPC5200B I detected, that the
    intspec arrays to map irqs to Linux virq cannot be const, because the
    mapping and xlate functions only take non const pointers. All those
    functions do not modify the intspec, so a const pointer could be used.

    Signed-off-by: Roman Fietze
    Signed-off-by: Benjamin Herrenschmidt

    Roman Fietze
     

24 Nov, 2009

1 commit

30 Oct, 2009

1 commit

  • 6cff46f4b   powerpc: Remove get_irq_desc() ... Browse Code »

    get_irq_desc() is a powerpc-specific version of irq_to_desc(). That
    is reason enough to remove it, but it also doesn't know about sparse
    irq_desc support which irq_to_desc() does (when we enable it).

    Signed-off-by: Michael Ellerman
    Acked-by: Grant Likely
    Signed-off-by: Benjamin Herrenschmidt

    Michael Ellerman
     

21 May, 2009

1 commit

09 Jun, 2008

1 commit

  • 19fc65b52   powerpc: Fix irq_alloc_host() reference counting and callers ... Browse Code »

    When I changed irq_alloc_host() to take an of_node
    (52964f87c64e6c6ea671b5bf3030fb1494090a48: "Add an optional
    device_node pointer to the irq_host"), I botched the reference
    counting semantics.

    Stephen pointed out that it's irq_alloc_host()'s business if
    it needs to take an additional reference to the device_node,
    the caller shouldn't need to care.

    Signed-off-by: Michael Ellerman
    Signed-off-by: Paul Mackerras

    Michael Ellerman
     

01 Apr, 2008

1 commit

13 Sep, 2007

2 commits

17 Aug, 2007

1 commit

29 Jun, 2007

3 commits

08 May, 2007

2 commits

13 Apr, 2007

1 commit

04 Dec, 2006

1 commit

07 Oct, 2006

1 commit

  • 35a84c2f5   [POWERPC] Fix up after irq changes ... Browse Code »

    Remove struct pt_regs * from all handlers.
    Also remove the regs argument from get_irq() functions.
    Compile tested with arch/powerpc/config/* and
    arch/ppc/configs/prep_defconfig

    Signed-off-by: Olaf Hering
    Signed-off-by: Paul Mackerras

    Olaf Hering
     

06 Oct, 2006

1 commit

25 Aug, 2006

1 commit

23 Aug, 2006

1 commit

31 Jul, 2006

1 commit

29 Jun, 2006

1 commit