Eric Lee / smarc-fsl-linux-kernel

19 Jun, 2019

1 commit

  • d2912cb15   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 ... Browse Code »

    Based on 2 normalized pattern(s):

    this program is free software you can redistribute it and or modify
    it under the terms of the gnu general public license version 2 as
    published by the free software foundation

    this program is free software you can redistribute it and or modify
    it under the terms of the gnu general public license version 2 as
    published by the free software foundation #

    extracted by the scancode license scanner the SPDX license identifier

    GPL-2.0-only

    has been chosen to replace the boilerplate/reference in 4122 file(s).

    Signed-off-by: Thomas Gleixner
    Reviewed-by: Enrico Weigelt
    Reviewed-by: Kate Stewart
    Reviewed-by: Allison Randal
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

25 Dec, 2016

1 commit

  • 73c1b41e6   cpu/hotplug: Cleanup state names ... Browse Code »

    When the state names got added a script was used to add the extra argument
    to the calls. The script basically converted the state constant to a
    string, but the cleanup to convert these strings into meaningful ones did
    not happen.

    Replace all the useless strings with 'subsys/xxx/yyy:state' strings which
    are used in all the other places already.

    Signed-off-by: Thomas Gleixner
    Cc: Peter Zijlstra
    Cc: Sebastian Siewior
    Link: http://lkml.kernel.org/r/20161221192112.085444152@linutronix.de
    Signed-off-by: Thomas Gleixner

    Thomas Gleixner
     

15 Jul, 2016

1 commit

  • 00c1d17aa   clocksource/dummy_timer: Convert to hotplug state machine ... Browse Code »

    Install the callbacks via the state machine and let the core invoke
    the callbacks on the already online CPUs.

    Signed-off-by: Richard Cochran
    Signed-off-by: Anna-Maria Gleixner
    Reviewed-by: Sebastian Andrzej Siewior
    Cc: Daniel Lezcano
    Cc: Linus Torvalds
    Cc: Peter Zijlstra
    Cc: Thomas Gleixner
    Cc: rt@linutronix.de
    Link: http://lkml.kernel.org/r/20160713153336.130385842@linutronix.de
    Signed-off-by: Ingo Molnar

    Richard Cochran
     

10 Aug, 2015

1 commit

27 Aug, 2014

1 commit

  • 22127e93c   time: Replace __get_cpu_var uses ... Browse Code »

    Convert uses of __get_cpu_var for creating a address from a percpu
    offset to this_cpu_ptr.

    The two cases where get_cpu_var is used to actually access a percpu
    variable are changed to use this_cpu_read/raw_cpu_read.

    Reviewed-by: Thomas Gleixner
    Signed-off-by: Christoph Lameter
    Signed-off-by: Tejun Heo

    Christoph Lameter
     

20 Mar, 2014

1 commit

  • 8daa127f4   clocksource, dummy-timer: Fix CPU hotplug callback registration ... Browse Code »

    Subsystems that want to register CPU hotplug callbacks, as well as perform
    initialization for the CPUs that are already online, often do it as shown
    below:

    get_online_cpus();

    for_each_online_cpu(cpu)
    init_cpu(cpu);

    register_cpu_notifier(&foobar_cpu_notifier);

    put_online_cpus();

    This is wrong, since it is prone to ABBA deadlocks involving the
    cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently
    with CPU hotplug operations).

    Instead, the correct and race-free way of performing the callback
    registration is:

    cpu_notifier_register_begin();

    for_each_online_cpu(cpu)
    init_cpu(cpu);

    /* Note the use of the double underscored version of the API */
    __register_cpu_notifier(&foobar_cpu_notifier);

    cpu_notifier_register_done();

    Fix the clocksource dummy-timer code by using this latter form of callback
    registration.

    Cc: Daniel Lezcano
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Signed-off-by: Srivatsa S. Bhat
    Signed-off-by: Rafael J. Wysocki

    Srivatsa S. Bhat
     

15 Jul, 2013

1 commit

  • 8c37bb3ac   clocksource+irqchip: delete __cpuinit usage from all related files ... Browse Code »

    The __cpuinit type of throwaway sections might have made sense
    some time ago when RAM was more constrained, but now the savings
    do not offset the cost and complications. For example, the fix in
    commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
    is a good example of the nasty type of bugs that can be created
    with improper use of the various __init prefixes.

    After a discussion on LKML[1] it was decided that cpuinit should go
    the way of devinit and be phased out. Once all the users are gone,
    we can then finally remove the macros themselves from linux/init.h.

    This removes all the drivers/clocksource and drivers/irqchip uses of
    the __cpuinit macros from all C files.

    [1] https://lkml.org/lkml/2013/5/20/589

    Cc: John Stultz
    Cc: Thomas Gleixner
    Acked-by: Thomas Gleixner
    Signed-off-by: Paul Gortmaker

    Paul Gortmaker
     

25 Jun, 2013

1 commit

  • 064706514   clocksource: Add generic dummy timer driver ... Browse Code »

    Several architectures have a dummy timer driver tightly coupled with
    their broadcast code to support machines without cpu-local timers (or
    where there is a lack of driver support).

    Since 12ad100046: "clockevents: Add generic timer broadcast function"
    it's been possible to write broadcast-capable timer drivers decoupled
    from the broadcast mechanism. We can use this functionality to implement
    a generic dummy timer driver that can be shared by all architectures
    with generic tick broadcast (ARCH_HAS_TICK_BROADCAST).

    This patch implements a generic dummy timer using this facility.

    [sboyd: Make percpu data static, use __this_cpu_ptr(), move to
    early_initcall to properly register on each CPU, only
    register if more than one CPU possible]

    Signed-off-by: Mark Rutland
    Signed-off-by: Stephen Boyd
    Acked-by: Marc Zyngier ,
    Cc: John Stultz
    Cc: Daniel Lezcano
    Cc: linux-arm-kernel@lists.infradead.org
    Link: http://lkml.kernel.org/r/1370291642-13259-3-git-send-email-sboyd@codeaurora.org
    Signed-off-by: Thomas Gleixner

    Mark Rutland