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| author |   Xu Wang <vulab@iscas.ac.cn> | 2020-07-08 06:20:23 +0000 |
|---|---|---|
| committer |   Max Filippov <jcmvbkbc@gmail.com> | 2020-07-08 00:18:15 -0700 |
| commit | ee769ebbe9e5fc7219e979fb7c5ed5bb5722649e (patch) | |
| tree | e08e08afba6def0b64a37fb71d8003d9f319faed /arch/xtensa | |
| parent | xtensa: update *pos in cpuinfo_op.next (diff) | |
| download | linux-dev-ee769ebbe9e5fc7219e979fb7c5ed5bb5722649e.tar.xz linux-dev-ee769ebbe9e5fc7219e979fb7c5ed5bb5722649e.zip | |
xtensa: simplify xtensa_pmu_irq_handler
Use for_each_set_bit() instead of open-coding it to simplify the code.
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Message-Id: <20200708062023.7986-1-vulab@iscas.ac.cn>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/kernel/perf_event.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/xtensa/kernel/perf_event.c b/arch/xtensa/kernel/perf_event.c index 9bae79f70301..99fcd63ce597 100644 --- a/arch/xtensa/kernel/perf_event.c +++ b/arch/xtensa/kernel/perf_event.c @@ -362,9 +362,7 @@ irqreturn_t xtensa_pmu_irq_handler(int irq, void *dev_id) struct xtensa_pmu_events *ev = this_cpu_ptr(&xtensa_pmu_events); unsigned i; - for (i = find_first_bit(ev->used_mask, XCHAL_NUM_PERF_COUNTERS); - i < XCHAL_NUM_PERF_COUNTERS; - i = find_next_bit(ev->used_mask, XCHAL_NUM_PERF_COUNTERS, i + 1)) { + for_each_set_bit(i, ev->used_mask, XCHAL_NUM_PERF_COUNTERS) { uint32_t v = get_er(XTENSA_PMU_PMSTAT(i)); struct perf_event *event = ev->event[i]; struct hw_perf_event *hwc = &event->hw; |