Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | kan.liang@linux ... | Subject | [PATCH V5 3/8] perf: Add branch_sample_call_stack | Date | Wed, 25 Oct 2023 13:16:21 -0700 |
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From: Kan Liang <kan.liang@linux.intel.com>
Add a helper function to check call stack sample type.
The later patch will invoke the function in several places.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com> ---
No changes since V4
arch/x86/events/core.c | 2 +- include/linux/perf_event.h | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 40c9af124128..09050641ce5d 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -601,7 +601,7 @@ int x86_pmu_hw_config(struct perf_event *event) } } - if (event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK) + if (branch_sample_call_stack(event)) event->attach_state |= PERF_ATTACH_TASK_DATA; /* diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 7897ef066027..ac1a59c1f252 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1144,6 +1144,11 @@ static inline bool branch_sample_counters(const struct perf_event *event) return event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_COUNTERS; } +static inline bool branch_sample_call_stack(const struct perf_event *event) +{ + return event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK; +} + struct perf_sample_data { /* * Fields set by perf_sample_data_init() unconditionally, -- 2.35.1
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