lkml.org 
[lkml]   [2017]   [May]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[tip:sched/core] ACPI: Adjust system_state check
    Commit-ID:  9762b33dc31c67e34b36ba4e787e64084b3136ff
    Gitweb: http://git.kernel.org/tip/9762b33dc31c67e34b36ba4e787e64084b3136ff
    Author: Thomas Gleixner <tglx@linutronix.de>
    AuthorDate: Tue, 16 May 2017 20:42:38 +0200
    Committer: Ingo Molnar <mingo@kernel.org>
    CommitDate: Tue, 23 May 2017 10:01:36 +0200

    ACPI: Adjust system_state check

    To enable smp_processor_id() and might_sleep() debug checks earlier, it's
    required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.

    Make the decision whether a pci root is hotplugged depend on SYSTEM_RUNNING
    instead of !SYSTEM_BOOTING. It makes no sense to cover states greater than
    SYSTEM_RUNNING as there are not hotplug events on reboot and poweroff.

    Tested-by: Mark Rutland <mark.rutland@arm.com>
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Len Brown <lenb@kernel.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
    Link: http://lkml.kernel.org/r/20170516184735.446455652@linutronix.de
    Signed-off-by: Ingo Molnar <mingo@kernel.org>
    ---
    drivers/acpi/pci_root.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
    index 919be0a..2405442 100644
    --- a/drivers/acpi/pci_root.c
    +++ b/drivers/acpi/pci_root.c
    @@ -523,7 +523,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
    struct acpi_pci_root *root;
    acpi_handle handle = device->handle;
    int no_aspm = 0;
    - bool hotadd = system_state != SYSTEM_BOOTING;
    + bool hotadd = system_state == SYSTEM_RUNNING;

    root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
    if (!root)
    \
     
     \ /
      Last update: 2017-05-23 10:57    [W:4.147 / U:0.192 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site