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    Subject[PATCH 4.9 101/329] cpumask: Make for_each_cpu_wrap() available on UP as well
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Michael Kelley <mhkelley@outlook.com>

    [ Upstream commit d207af2eab3f8668b95ad02b21930481c42806fd ]

    for_each_cpu_wrap() was originally added in the #else half of a
    large "#if NR_CPUS == 1" statement, but was omitted in the #if
    half. This patch adds the missing #if half to prevent compile
    errors when NR_CPUS is 1.

    Reported-by: kbuild test robot <fengguang.wu@intel.com>
    Signed-off-by: Michael Kelley <mhkelley@outlook.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: kys@microsoft.com
    Cc: martin.petersen@oracle.com
    Cc: mikelley@microsoft.com
    Fixes: c743f0a5c50f ("sched/fair, cpumask: Export for_each_cpu_wrap()")
    Link: http://lkml.kernel.org/r/SN6PR1901MB2045F087F59450507D4FCC17CBF50@SN6PR1901MB2045.namprd19.prod.outlook.com
    Signed-off-by: Ingo Molnar <mingo@kernel.org>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    include/linux/cpumask.h | 2 ++
    1 file changed, 2 insertions(+)

    --- a/include/linux/cpumask.h
    +++ b/include/linux/cpumask.h
    @@ -164,6 +164,8 @@ static inline unsigned int cpumask_local
    for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
    #define for_each_cpu_not(cpu, mask) \
    for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
    +#define for_each_cpu_wrap(cpu, mask, start) \
    + for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)(start))
    #define for_each_cpu_and(cpu, mask, and) \
    for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)and)
    #else

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