diff options
| author | Stephane Eranian <eranian@google.com> | 2022-03-22 15:15:05 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-04-05 10:24:36 +0200 |
| commit | bfe4daf850f45d92dcd3da477f0b0456620294c3 (patch) | |
| tree | ebe7d7fcb6d0d0f4d26fbbf0f46a9859fd46d56d /include/linux/perf_event.h | |
| parent | 3123109284176b1532874591f7c81f3837bbdc17 (diff) | |
perf/core: Add perf_clear_branch_entry_bitfields() helper
Make it simpler to reset all the info fields on the
perf_branch_entry by adding a helper inline function.
The goal is to centralize the initialization to avoid missing
a field in case more are added.
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220322221517.2510440-2-eranian@google.com
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index af97dd427501..a411080d5169 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1063,6 +1063,22 @@ static inline void perf_sample_data_init(struct perf_sample_data *data, data->txn = 0; } +/* + * Clear all bitfields in the perf_branch_entry. + * The to and from fields are not cleared because they are + * systematically modified by caller. + */ +static inline void perf_clear_branch_entry_bitfields(struct perf_branch_entry *br) +{ + br->mispred = 0; + br->predicted = 0; + br->in_tx = 0; + br->abort = 0; + br->cycles = 0; + br->type = 0; + br->reserved = 0; +} + extern void perf_output_sample(struct perf_output_handle *handle, struct perf_event_header *header, struct perf_sample_data *data, |