diff options
| author | Peter Zijlstra <[email protected]> | 2016-07-07 19:37:52 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-08-10 13:13:25 +0200 |
| commit | c3a61a2c5c6b6b4dd878812507c681c9aec3ed17 (patch) | |
| tree | 397b17097f2d4eba42081d2c323f57447eb29e74 | |
| parent | 68f7082ffb0575154ccdec36109e293174f48a4c (diff) | |
perf/x86/intel: Eliminate dead code in intel_pmu_lbr_del()
Since pmu::del() is always called under perf_pmu_disable(), the block
conditional on cpuc->enabled is dead.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vince Weaver <[email protected]>
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/events/intel/lbr.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c index e7b58c2c2250..1bd72e900498 100644 --- a/arch/x86/events/intel/lbr.c +++ b/arch/x86/events/intel/lbr.c @@ -467,12 +467,6 @@ void intel_pmu_lbr_del(struct perf_event *event) cpuc->lbr_users--; WARN_ON_ONCE(cpuc->lbr_users < 0); perf_sched_cb_dec(event->ctx->pmu); - - if (cpuc->enabled && !cpuc->lbr_users) { - __intel_pmu_lbr_disable(); - /* avoid stale pointer */ - cpuc->lbr_context = NULL; - } } void intel_pmu_lbr_enable_all(bool pmi) |