Eric Lee / smarc-fsl-linux-kernel

25 Oct, 2015

1 commit

14 Feb, 2015

1 commit

  • 125918dbd   usb: use %*pb[l] to print bitmaps including cpumasks and nodemasks ... Browse Code »

    printk and friends can now format bitmaps using '%*pb[l]'. cpumask
    and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
    respectively which can be used to generate the two printf arguments
    necessary to format the specified cpu/nodemask.

    * drivers/uwb/drp.c::uwb_drp_handle_alien_drp() was formatting mas.bm
    into a buffer but never used it. Removed.

    Signed-off-by: Tejun Heo
    Acked-by: Greg Kroah-Hartman
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tejun Heo
     

28 May, 2014

1 commit

25 Apr, 2014

1 commit

17 Apr, 2014

1 commit

22 May, 2013

1 commit

31 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
     

23 Jan, 2009

1 commit

12 Dec, 2008

1 commit

  • 5b37717a2   uwb: improved MAS allocator and reservation conflict handling ... Browse Code »

    Greatly enhance the MAS allocator:
    - Handle row and column reservations.
    - Permit all the available MAS to be allocated.
    - Follows the WiMedia rules on MAS selection.

    Take appropriate action when reservation conflicts are detected.
    - Correctly identify which reservation wins the conflict.
    - Protect alien BP reservations.
    - If an owned reservation loses, resize/move it.
    - Follow the backoff procedure before requesting additional MAS.

    When reservations are terminated, move the remaining reservations (if
    necessary) so they keep following the MAS allocation rules.

    Signed-off-by: Stefano Panella
    Signed-off-by: David Vrabel

    Stefano Panella
     

19 Nov, 2008

1 commit

  • 6fae35f9c   uwb: add basic radio manager ... Browse Code »

    The UWB radio manager coordinates the use of the radio between the
    PALs that may be using it. PALs request use of the radio with
    uwb_radio_start() and the radio manager will start beaconing if its
    not already doing so. When the last PAL has called uwb_radio_stop()
    beaconing will be stopped.

    In the future, the radio manager will have a more sophisticated channel
    selection algorithm, probably following the Channel Selection Policy
    from the WiMedia Alliance when it is finalized. For now, channel 9
    (BG1, TFC1) is selected.

    The user may override the channel selected by the radio manager and may
    force the radio to stop beaconing.

    The WUSB Host Controller PAL makes use of this and there are two new
    debug PAL commands that can be used for testing.

    Signed-off-by: David Vrabel

    David Vrabel
     

17 Sep, 2008

1 commit