01 Nov, 2011

1 commit


17 Jun, 2011

1 commit

  • Unnecessary casts of void * clutter the code.

    These are the remainder casts after several specific
    patches to remove netdev_priv and dev_priv.

    Done via coccinelle script:

    $ cat cast_void_pointer.cocci
    @@
    type T;
    T *pt;
    void *pv;
    @@

    - pt = (T *)pv;
    + pt = pv;

    Signed-off-by: Joe Perches
    Acked-by: Paul Moore
    Signed-off-by: David S. Miller

    Joe Perches
     

30 Mar, 2010

1 commit

  • …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
     

22 Mar, 2009

1 commit


06 Mar, 2008

1 commit


29 Jan, 2008

1 commit


18 Jul, 2007

1 commit

  • When having built-in IrDA, we hit the following error:

    `irda_sysctl_unregister' referenced in section `.init.text' of
    net/built-in.o: defined in discarded section `.exit.text' of
    net/built-in.o
    `irda_proc_unregister' referenced in section `.init.text' of
    net/built-in.o: defined in discarded section `.exit.text' of
    net/built-in.o
    `irsock_cleanup' referenced in section `.init.text' of net/built-in.o:
    defined in discarded section `.exit.text' of net/built-in.o
    `irttp_cleanup' referenced in section `.init.text' of net/built-in.o:
    defined in discarded section `.exit.text' of net/built-in.o
    `iriap_cleanup' referenced in section `.init.text' of net/built-in.o:
    defined in discarded section `.exit.text' of net/built-in.o
    `irda_device_cleanup' referenced in section `.init.text' of
    net/built-in.o: defined in discarded section `.exit.text' of
    net/built-in.o
    `irlap_cleanup' referenced in section `.init.text' of net/built-in.o:
    defined in discarded section `.exit.text' of net/built-in.o
    `irlmp_cleanup' referenced in section `.init.text' of net/built-in.o:
    defined in discarded section `.exit.text' of net/built-in.o
    make[1]: *** [.tmp_vmlinux1] Error 1
    make: *** [_all] Error 2

    This is due to the irda_init fix recently added, where we call __exit
    routines from an __init one. It is a build failure that I didn't catch
    because it doesn't show up when building IrDA as a module. My apologies
    for that.
    The following patch fixes that failure and is against your net-2.6
    tree. I hope it can make it to the merge window, and stable@kernel.org
    is CCed on this mail.

    Signed-off-by: Samuel Ortiz
    Signed-off-by: David S. Miller

    Samuel Ortiz
     

26 Apr, 2007

1 commit


11 Feb, 2007

1 commit


22 Jul, 2006

1 commit


01 Jul, 2006

1 commit


10 Feb, 2006

1 commit


12 Jan, 2006

1 commit


04 May, 2005

1 commit

  • * net/irda/irda_device.c::irda_setup_dma() made conditional on
    ISA_DMA_API (it uses helpers in question and irda is usable on
    platforms that don't have them at all - think of USB IRDA, for
    example).
    * irda drivers that depend on ISA DMA marked as dependent on
    ISA_DMA_API

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro
     

17 Apr, 2005

3 commits