07 Oct, 2019

1 commit

  • Use devm_platform_ioremap_resource() to simplify the code a bit.
    This is detected by coccinelle.

    Signed-off-by: YueHaibing
    Link: https://lore.kernel.org/r/20191006102953.57536-2-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-3-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-4-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-5-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-6-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-7-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-8-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-9-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-10-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-11-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-12-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-13-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-14-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-15-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-16-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-17-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-18-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-19-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-20-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-21-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-22-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-23-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-24-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-25-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-26-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-27-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-28-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-29-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-30-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-31-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-32-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-33-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-34-yuehaibing@huawei.com
    Link: https://lore.kernel.org/r/20191006102953.57536-35-yuehaibing@huawei.com
    Signed-off-by: Alexandre Belloni

    YueHaibing
     

08 Apr, 2019

4 commits


23 Jan, 2019

1 commit


07 Jul, 2018

1 commit

  • At over 4000 #includes, is the 9th most
    #included header file in the Linux kernel. It does not need
    , so drop that header and explicitly add
    to source files that need it.

    4146 #include

    After this patch, there are 225 files that use ,
    for a reduction of around 3900 times that
    does not have to be read & parsed.

    225 #include

    This patch was build-tested on 20 different arch-es.

    It also makes these drivers SubmitChecklist#1 compliant.

    Signed-off-by: Randy Dunlap
    Reported-by: kbuild test robot # drivers/media/platform/vimc/
    Reported-by: kbuild test robot # drivers/pinctrl/pinctrl-u300.c
    Signed-off-by: Greg Kroah-Hartman

    Randy Dunlap
     

01 Mar, 2018

1 commit


02 Sep, 2016

1 commit

  • Check for rtc_class_ops structures that are only passed to
    devm_rtc_device_register, rtc_device_register,
    platform_device_register_data, all of which declare the corresponding
    parameter as const. Declare rtc_class_ops structures that have these
    properties as const.

    The semantic patch that makes this change is as follows:
    (http://coccinelle.lip6.fr/)

    //
    @r disable optional_qualifier@
    identifier i;
    position p;
    @@
    static struct rtc_class_ops i@p = { ... };

    @ok@
    identifier r.i;
    expression e1,e2,e3,e4;
    position p;
    @@
    (
    devm_rtc_device_register(e1,e2,&i@p,e3)
    |
    rtc_device_register(e1,e2,&i@p,e3)
    |
    platform_device_register_data(e1,e2,e3,&i@p,e4)
    )

    @bad@
    position p != {r.p,ok.p};
    identifier r.i;
    @@
    i@p

    @depends on !bad disable optional_qualifier@
    identifier r.i;
    @@
    static
    +const
    struct rtc_class_ops i = { ... };
    //

    Signed-off-by: Julia Lawall
    Acked-by: Baruch Siach
    Acked-by: Hans Ulli Kroll
    Acked-by: Linus Walleij
    Acked-by: Thierry Reding
    Signed-off-by: Alexandre Belloni

    Julia Lawall
     

06 Sep, 2015

1 commit


20 Oct, 2014

1 commit


04 Apr, 2014

1 commit

  • Use devm_ioremap_resource() in order to make the code simpler, and
    remove redundant return value check of platform_get_resource() because
    the value is checked by devm_ioremap_resource().

    Signed-off-by: Jingoo Han
    Acked-by: Linus Walleij
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jingoo Han
     

04 Jul, 2013

2 commits

  • Use the wrapper functions for getting and setting the driver data using
    platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
    so we can directly pass a struct platform_device.

    Signed-off-by: Jingoo Han
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jingoo Han
     
  • The driver core clears the driver data to NULL after device_release or
    on probe failure, since commit 0998d063100 ("device-core: Ensure drvdata
    = NULL when no driver is bound"). Thus, it is not needed to manually
    clear the device driver data to NULL.

    Signed-off-by: Jingoo Han
    Acked-by: Linus Walleij
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jingoo Han
     

17 Jun, 2013

1 commit


30 Apr, 2013

3 commits


22 Feb, 2013

1 commit


06 Oct, 2012

1 commit

  • clk_prepare_enable and clk_disable_unprepare combine clk_prepare and
    clk_enable, and clk_disable and clk_unprepare. They make the code more
    concise, and ensure that clk_unprepare is called when clk_enable fails.

    A simplified version of the semantic patch that introduces calls to these
    functions is as follows: (http://coccinelle.lip6.fr/)

    //
    @@
    expression e;
    @@

    - clk_prepare(e);
    - clk_enable(e);
    + clk_prepare_enable(e);

    @@
    expression e;
    @@

    - clk_disable(e);
    - clk_unprepare(e);
    + clk_disable_unprepare(e);
    //

    Signed-off-by: Julia Lawall
    Acked-by: Linus Walleij
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Julia Lawall
     

31 Jul, 2012

2 commits


24 Mar, 2012

1 commit

  • Since commit e58aa3d2d0cc ("genirq: run irq handlers with interrupts
    disabled") we run all interrupt handlers with interrupts disabled and we
    even check and yell when an interrupt handler returns with interrupts
    enabled - see commit b738a50a2026 ("genirq: warn when handler enables
    interrupts").

    So now this flag is a NOOP and can be removed.

    Signed-off-by: Yong Zhang
    Acked-by: Linus Walleij
    Acked-by: Wan ZongShun
    Cc: Alessandro Zummo
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yong Zhang
     

21 Apr, 2011

1 commit

  • The rtc_device_register() call has changed semantics so that it
    will immediately call out to rtc_read_alarm() and since the
    callbacks require the drvdata to be set, we need to set it before
    the registration call to avoid NULL dereference.

    Signed-off-by: Linus Walleij

    Linus Walleij
     

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
     

07 Mar, 2010

1 commit

  • The else part of the if statement is indented but does not have braces
    around it. It clearly should since it uses clk_enable and clk_disable
    which are supposed to balance.

    Signed-off-by: James Hogan
    Acked-by: Linus Walleij
    Acked-by: Alessandro Zummo
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    James Hogan
     

17 Nov, 2009

1 commit

  • This will fix some small issues with the COH 901 331 RTC driver:
    - Interrupt is disabled after alarm so that we don't fire
    multiple interrupts.
    - We return 0 from the coh901331_alarm_irq_enable() ridding
    a compile warning.
    - We alter the name in the U300 device registry to match that
    of the driver so they sucessfully resolve.

    Signed-off-by: Linus Walleij
    Signed-off-by: Russell King

    Linus Walleij
     

23 Sep, 2009

1 commit

  • This adds a driver for the RTC COH 901 331 found in the ST-Ericsson U300
    series mobile platforms to the RTC subsystem. It integrates to the ARM
    kernel support recently added to RMKs ARM tree and will be enabled in the
    U300 defconfig in due time.

    Signed-off-by: Linus Walleij
    Signed-off-by: Alessandro Zummo
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Linus Walleij