Eric Lee / smarc-fsl-linux-kernel

21 Nov, 2019

1 commit

  • 8392853e9   rackmeter: Use vtime aware kcpustat accessor ... Browse Code »

    Now that we have a vtime safe kcpustat accessor, use it to fetch
    CPUTIME_NICE and fix frozen kcpustat values on nohz_full CPUs.

    Reported-by: Yauheni Kaliuta
    Signed-off-by: Frederic Weisbecker
    Cc: Benjamin Herrenschmidt
    Cc: Peter Zijlstra
    Cc: Wanpeng Li
    Link: https://lkml.kernel.org/r/20191121024430.19938-7-frederic@kernel.org
    Signed-off-by: Ingo Molnar

    Frederic Weisbecker
     

19 Jun, 2019

1 commit

  • 2c162f9b4   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 246 ... Browse Code »

    Based on 1 normalized pattern(s):

    released under the term of the gnu gpl v2

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 16 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Allison Randal
    Reviewed-by: Enrico Weigelt
    Reviewed-by: Alexios Zavras
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190602204654.922331175@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

22 Dec, 2018

1 commit

  • f1e0addca   macintosh: Use of_node_name_{eq, prefix} for node name comparisons ... Browse Code »

    Convert string compares of DT node names to use of_node_name_{eq,prefix}
    helpers instead. This removes direct access to the node name pointer.

    This changes a single case insensitive node name comparison to case
    sensitive for "ata4". This is the only instance of a case insensitive
    comparison for all the open coded node name comparisons on powerpc.
    Searching the commit history, there doesn't appear to be any reason for
    it to be case insensitive.

    A couple of open coded iterating thru the child node names are converted
    to use for_each_child_of_node() instead.

    Signed-off-by: Rob Herring
    Signed-off-by: Michael Ellerman

    Rob Herring
     

30 Mar, 2018

1 commit

  • e283655b5   drivers: macintosh: rack-meter: really fix bogus memsets ... Browse Code »

    We should zero an array using sizeof instead of number of elements.

    Fixes the following compiler (GCC 7.3.0) warnings:

    drivers/macintosh/rack-meter.c: In function 'rackmeter_do_pause':
    drivers/macintosh/rack-meter.c:157:2: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size]
    drivers/macintosh/rack-meter.c:158:2: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size]

    Fixes: 4f7bef7a9f69 ("drivers: macintosh: rack-meter: fix bogus memsets")
    Reported-by: Stephen Rothwell
    Signed-off-by: Aaro Koskinen
    Signed-off-by: Michael Ellerman

    Aaro Koskinen
     

20 Mar, 2018

1 commit

01 Sep, 2017

1 commit

21 Aug, 2017

1 commit

  • 516fa8d0e   macintosh/rack-meter: Make of_device_ids const ... Browse Code »

    of_device_ids are not supposed to change at runtime. All functions
    working with of_device_ids provided by work with const
    of_device_ids. So mark the non-const structs as const.

    File size before:
    text data bss dec hex filename
    407 576 0 983 3d7 drivers/macintosh/rack-meter.o

    File size after constify rackmeter_match.
    text data bss dec hex filename
    807 176 0 983 3d7 drivers/macintosh/rack-meter.o

    Signed-off-by: Arvind Yadav
    Signed-off-by: Michael Ellerman

    Arvind Yadav
     

01 Feb, 2017

2 commits

  • 564b733c8   macintosh/rack-meter: Convert cputime64_t use to u64 ... Browse Code »

    cputime_t is going to be removed and replaced by nsecs units,
    so convert the drivers/macintosh/rack-meter.c use to u64..

    Signed-off-by: Frederic Weisbecker
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Cc: Michael Ellerman
    Cc: Heiko Carstens
    Cc: Martin Schwidefsky
    Cc: Tony Luck
    Cc: Fenghua Yu
    Cc: Peter Zijlstra
    Cc: Rik van Riel
    Cc: Stanislaw Gruszka
    Cc: Wanpeng Li
    Link: http://lkml.kernel.org/r/1485832191-26889-5-git-send-email-fweisbec@gmail.com
    Signed-off-by: Ingo Molnar

    Frederic Weisbecker
     
  • 7fb1327ee   sched/cputime: Convert kcpustat to nsecs ... Browse Code »

    Kernel CPU stats are stored in cputime_t which is an architecture
    defined type, and hence a bit opaque and requiring accessors and mutators
    for any operation.

    Converting them to nsecs simplifies the code and is one step toward
    the removal of cputime_t in the core code.

    Signed-off-by: Frederic Weisbecker
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Cc: Michael Ellerman
    Cc: Heiko Carstens
    Cc: Martin Schwidefsky
    Cc: Tony Luck
    Cc: Fenghua Yu
    Cc: Peter Zijlstra
    Cc: Rik van Riel
    Cc: Stanislaw Gruszka
    Cc: Wanpeng Li
    Link: http://lkml.kernel.org/r/1485832191-26889-4-git-send-email-fweisbec@gmail.com
    Signed-off-by: Ingo Molnar

    Frederic Weisbecker
     

20 Sep, 2016

1 commit

  • ef24ba709   powerpc: Remove all usages of NO_IRQ ... Browse Code »

    NO_IRQ has been == 0 on powerpc for just over ten years (since commit
    0ebfff1491ef ("[POWERPC] Add new interrupt mapping core and change
    platforms to use it")). It's also 0 on most other arches.

    Although it's fairly harmless, every now and then it causes confusion
    when a driver is built on powerpc and another arch which doesn't define
    NO_IRQ. There's at least 6 definitions of NO_IRQ in drivers/, at least
    some of which are to work around that problem.

    So we'd like to remove it. This is fairly trivial in the arch code, we
    just convert:

    if (irq == NO_IRQ) to if (!irq)
    if (irq != NO_IRQ) to if (irq)
    irq = NO_IRQ; to irq = 0;
    return NO_IRQ; to return 0;

    And a few other odd cases as well.

    At least for now we keep the #define NO_IRQ, because there is driver
    code that uses NO_IRQ and the fixes to remove those will go via other
    trees.

    Note we also change some occurrences in PPC sound drivers, drivers/ps3,
    and drivers/macintosh.

    Signed-off-by: Michael Ellerman

    Michael Ellerman
     

12 Apr, 2016

2 commits

26 Nov, 2015

1 commit

23 Mar, 2015

1 commit

  • f57187267   powerpc: Move Power Macintosh drivers to generic byteswappers ... Browse Code »

    ppc has special instruction forms to efficiently load and store values
    in non-native endianness. These can be accessed via the arch-specific
    {ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h.

    However, gcc is perfectly capable of generating the byte-reversing
    load/store instructions when using the normal, generic cpu_to_le*() and
    le*_to_cpu() functions eaning the arch-specific functions don't have much
    point.

    Worse the "le" in the names of the arch specific functions is now
    misleading, because they always generate byte-reversing forms, but some
    ppc machines can now run a little-endian kernel.

    To start getting rid of the arch-specific forms, this patch removes them
    from all the old Power Macintosh drivers, replacing them with the
    generic byteswappers.

    Signed-off-by: David Gibson
    Signed-off-by: Benjamin Herrenschmidt

    David Gibson
     

10 Oct, 2013

1 commit

04 Jan, 2013

1 commit

  • 1da42fb6b   Drivers: macintosh: remove __dev* attributes. ... Browse Code »

    CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
    markings need to be removed.

    This change removes the use of __devinit, __devexit_p, __devinitconst,
    and __devexit from these drivers.

    Based on patches originally written by Bill Pemberton, but redone by me
    in order to handle some of the coding style issues better, by hand.

    Cc: Bill Pemberton
    Cc: Benjamin Herrenschmidt
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

20 Dec, 2011

1 commit

15 Dec, 2011

1 commit

06 Dec, 2011

1 commit

  • 3292beb34   sched/accounting: Change cpustat fields to an array ... Browse Code »
    43

    This patch changes fields in cpustat from a structure, to an
    u64 array. Math gets easier, and the code is more flexible.

    Signed-off-by: Glauber Costa
    Reviewed-by: KAMEZAWA Hiroyuki
    Cc: Linus Torvalds
    Cc: Andrew Morton
    Cc: Paul Tuner
    Signed-off-by: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1322498719-2255-2-git-send-email-glommer@parallels.com
    Signed-off-by: Ingo Molnar

    Glauber Costa
     

02 Mar, 2011

1 commit

  • e1f4dea45   powerpc/macintosh: Fix __devexit annotation in rack-meter.c ... Browse Code »

    The following warning was seen building rack-meter.c

    WARNING: drivers/built-in.o(.text+0xac784): Section mismatch in reference from the function rackmeter_shutdown() to the function .devexit.text:rackmeter_stop_cpu_sniffer()
    The function rackmeter_shutdown() references a function in an exit section.
    Often the function rackmeter_stop_cpu_sniffer() has valid usage outside the exit section
    and the fix is to remove the __devexit annotation of rackmeter_stop_cpu_sniffer.

    This patch resolves the warning by removing the __devexit annotation from
    rackmeter_stop_cpu_sniffer().

    Signed-off-by: Grant Likely
    Cc: linuxppc-dev@lists.ozlabs.org
    Cc: Benjamin Herrenschmidt
    Signed-off-by: Benjamin Herrenschmidt

    Grant Likely
     

15 Dec, 2010

1 commit

  • afe2c511f   workqueue: convert cancel_rearming_delayed_work[queue]() users to cancel_delayed_work_sync() ... Browse Code »

    cancel_rearming_delayed_work[queue]() has been superceded by
    cancel_delayed_work_sync() quite some time ago. Convert all the
    in-kernel users. The conversions are completely equivalent and
    trivial.

    Signed-off-by: Tejun Heo
    Acked-by: "David S. Miller"
    Acked-by: Greg Kroah-Hartman
    Acked-by: Evgeniy Polyakov
    Cc: Jeff Garzik
    Cc: Benjamin Herrenschmidt
    Cc: Mauro Carvalho Chehab
    Cc: netdev@vger.kernel.org
    Cc: Anton Vorontsov
    Cc: David Woodhouse
    Cc: "J. Bruce Fields"
    Cc: Neil Brown
    Cc: Alex Elder
    Cc: xfs-masters@oss.sgi.com
    Cc: Christoph Lameter
    Cc: Pekka Enberg
    Cc: Andrew Morton
    Cc: netfilter-devel@vger.kernel.org
    Cc: Trond Myklebust
    Cc: linux-nfs@vger.kernel.org

    Tejun Heo
     

02 Jun, 2010

1 commit

  • c2cdf6aba   powerpc/macio: Fix probing of macio devices by using the right of match table ... Browse Code »

    Grant patches added an of mach table to struct device_driver. However,
    while he changed the macio device code to use that, he left the match
    table pointer in struct macio_driver and didn't update drivers to use
    the "new" one, thus breaking the probing.

    This completes the change by moving all drivers to setup the "new"
    one, removing all traces of the old one, and while at it (since it
    changes the exact same locations), I also remove two other duplicates
    from struct driver which are the name and owner fields.

    Signed-off-by: Benjamin Herrenschmidt

    Benjamin Herrenschmidt
     

19 May, 2010

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
     

21 Sep, 2009

1 commit

01 Dec, 2008

1 commit

  • 31421a6f6   rackmeter section fixes ... Browse Code »

    * rackmeter_remove() reference needs devexit_p
    * rackmeter_setup() is calls devinit and is called only from devinit

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

    Al Viro
     

22 Jul, 2007

1 commit

27 Apr, 2007

1 commit

26 Apr, 2007

1 commit

13 Apr, 2007

1 commit

10 Feb, 2007

1 commit

06 Dec, 2006

1 commit

04 Dec, 2006

1 commit

  • 3e00a5aec   [POWERPC] Xserve cpu-meter driver ... Browse Code »

    This is a small driver for the Xserve G5 CPU-meter blue LEDs on the
    front-panel. It might work on the Xserve G4 as well though that was
    not tested. It's pretty basic and could use some improvements if
    somebody cares doing them. :)

    Signed-off-by: Benjamin Herrenschmidt
    Signed-off-by: Paul Mackerras

    Benjamin Herrenschmidt