Commit 19220999 authored Sep 21, 2017 by Heiko Carstens Committed by Martin Schwidefsky Sep 28, 2017

s390/cpumf: remove superfluous nr_cpumask_bits check



Paul Burton reported that the nr_cpumask_bits check
within cpumsf_pmu_event_init() is not necessary.

Actually there is already a prior check within
perf_event_alloc(). Therefore remove the check.

Reported-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 76b31381

arch/s390/kernel/perf_cpum_sf.c

+1 −5

Original line number	Diff line number	Diff line
		@@ -823,12 +823,8 @@ static int cpumsf_pmu_event_init(struct perf_event *event)
		}

		/* Check online status of the CPU to which the event is pinned */
		if (event->cpu >= 0) {
		if ((unsigned int)event->cpu >= nr_cpumask_bits)
		if (event->cpu >= 0 && !cpu_online(event->cpu))
		return -ENODEV;
		if (!cpu_online(event->cpu))
		return -ENODEV;
		}

		/* Force reset of idle/hv excludes regardless of what the
		* user requested.