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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-17 19:19:22 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-17 19:19:22 +0300 |
| commit | 69ebf9a16a74cf05359b851a5dc614a63f075d1a (patch) | |
| tree | a69e9c844f1c8eebeda48afa2f8f3931f0084ad5 | |
| parent | c5b5138cdb2f833a22cfa36c95d6ee41e98a0a34 (diff) | |
| parent | c634dc6bdedeb0b2c750fc611612618a85639ab2 (diff) | |
| download | linux-69ebf9a16a74cf05359b851a5dc614a63f075d1a.tar.xz | |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"Three fixes for the fallout from the TSX errata workaround:
- Prevent memory corruption caused by a unchecked out of bound array
index.
- Two trivial fixes to address compiler warnings"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Make dev_attr_allow_tsx_force_abort static
perf/x86: Fixup typo in stub functions
perf/x86/intel: Fix memory corruption
| -rw-r--r-- | arch/x86/events/intel/core.c | 4 | ||||
| -rw-r--r-- | arch/x86/events/perf_event.h | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 35102ecdfc8d..8baa441d8000 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -3410,7 +3410,7 @@ tfa_get_event_constraints(struct cpu_hw_events *cpuc, int idx, /* * Without TFA we must not use PMC3. */ - if (!allow_tsx_force_abort && test_bit(3, c->idxmsk)) { + if (!allow_tsx_force_abort && test_bit(3, c->idxmsk) && idx >= 0) { c = dyn_constraint(cpuc, c, idx); c->idxmsk64 &= ~(1ULL << 3); c->weight--; @@ -4179,7 +4179,7 @@ static struct attribute *intel_pmu_caps_attrs[] = { NULL }; -DEVICE_BOOL_ATTR(allow_tsx_force_abort, 0644, allow_tsx_force_abort); +static DEVICE_BOOL_ATTR(allow_tsx_force_abort, 0644, allow_tsx_force_abort); static struct attribute *intel_pmu_attrs[] = { &dev_attr_freeze_on_smi.attr, diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h index b04ae6c8775e..a75955741c50 100644 --- a/arch/x86/events/perf_event.h +++ b/arch/x86/events/perf_event.h @@ -1033,12 +1033,12 @@ static inline int intel_pmu_init(void) return 0; } -static inline int intel_cpuc_prepare(struct cpu_hw_event *cpuc, int cpu) +static inline int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu) { return 0; } -static inline void intel_cpuc_finish(struct cpu_hw_event *cpuc) +static inline void intel_cpuc_finish(struct cpu_hw_events *cpuc) { } |