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| author | Peter Zijlstra <peterz@infradead.org> | 2022-05-10 21:28:25 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-09-07 21:54:02 +0200 |
| commit | 28f0f3c44b5c35be657a4f922dcdfb48285f4373 (patch) | |
| tree | 0be9accbe824b6ff579eb094cff959a09c90ebd8 /arch/x86/events/amd/core.c | |
| parent | e577bb17a1eaa35b86ee873a786e603be768d668 (diff) | |
perf/x86: Change x86_pmu::limit_period signature
In preparation for making it a static_call, change the signature.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220829101321.573713839@infradead.org
Diffstat (limited to 'arch/x86/events/amd/core.c')
| -rw-r--r-- | arch/x86/events/amd/core.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c index bd99d2ae14c3..8b70237c33f7 100644 --- a/arch/x86/events/amd/core.c +++ b/arch/x86/events/amd/core.c @@ -1224,16 +1224,14 @@ static ssize_t amd_event_sysfs_show(char *page, u64 config) return x86_event_sysfs_show(page, config, event); } -static u64 amd_pmu_limit_period(struct perf_event *event, u64 left) +static void amd_pmu_limit_period(struct perf_event *event, s64 *left) { /* * Decrease period by the depth of the BRS feature to get the last N * taken branches and approximate the desired period */ - if (has_branch_stack(event) && left > x86_pmu.lbr_nr) - left -= x86_pmu.lbr_nr; - - return left; + if (has_branch_stack(event) && *left > x86_pmu.lbr_nr) + *left -= x86_pmu.lbr_nr; } static __initconst const struct x86_pmu amd_pmu = { |