aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-17 09:19:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-17 09:19:22 -0700
commit69ebf9a16a74cf05359b851a5dc614a63f075d1a (patch)
treea69e9c844f1c8eebeda48afa2f8f3931f0084ad5
parentc5b5138cdb2f833a22cfa36c95d6ee41e98a0a34 (diff)
parentc634dc6bdedeb0b2c750fc611612618a85639ab2 (diff)
downloadkernel-69ebf9a16a74cf05359b851a5dc614a63f075d1a.tar.gz
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.c4
-rw-r--r--arch/x86/events/perf_event.h4
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)
{
}