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(parent: 3d43b98) | patch
s390/cpum_sf: do not register PMU if no sampling mode is authorized
authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Wed, 31 May 2017 13:22:19 +0000 (15:22 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 16 Nov 2017 14:06:10 +0000 (15:06 +0100)
commit9232c3c741200167e44ae9d0e434092657ab4534
treeb7086cbdf10d3a1af0e3918f09140963f11bf102tree | snapshot
parent3d43b981eb841a9493717e6d509f59553dbe8c7acommit | diff
s390/cpum_sf: do not register PMU if no sampling mode is authorized

Previously, the cpum_sf PMU was registered even if there is no
sampling mode authorized.  Add a check and register cpum_sf only
at least one sampling mode is authorized.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/kernel/perf_cpum_sf.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git