diff options
| author | Sean Paul <seanpaul@chromium.org> | 2019-10-23 11:14:11 -0400 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2019-10-23 11:14:11 -0400 |
| commit | 44bf67f32a6803339ac1ba721b158c3e2272cabe (patch) | |
| tree | 1ed93503a4a1d20005b85df91bd81e5f5982f348 /arch/s390/kernel/perf_cpum_sf.c | |
| parent | a96bf3cbd7b8557f5c5c7938e5f8926ea39d55e9 (diff) | |
| parent | 2e79e22e092acd55da0b2db066e4826d7d152c41 (diff) | |
Merge drm/drm-next into drm-misc-next
Parroting Daniel's backmerge justification from
2e79e22e092acd55da0b2db066e4826d7d152c41:
Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'arch/s390/kernel/perf_cpum_sf.c')
| -rw-r--r-- | arch/s390/kernel/perf_cpum_sf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index 544a02e944c6..3d8b12a9a6ff 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -803,6 +803,12 @@ static int __hw_perf_event_init(struct perf_event *event) goto out; } + if (si.ribm & CPU_MF_SF_RIBM_NOTAV) { + pr_warn("CPU Measurement Facility sampling is temporarily not available\n"); + err = -EBUSY; + goto out; + } + /* Always enable basic sampling */ SAMPL_FLAGS(hwc) = PERF_CPUM_SF_BASIC_MODE; @@ -895,7 +901,7 @@ 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 && !cpu_online(event->cpu)) - return -ENODEV; + return -ENODEV; /* Force reset of idle/hv excludes regardless of what the * user requested. |