Messages in this thread Patch in this message | | | From | Qi Liu <> | Subject | [PATCH v3 1/9] perf: Add EVENT_ATTR_ID to simplify event attributes | Date | Tue, 8 Jun 2021 11:33:13 +0800 |
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Similar EVENT_ATTR macros are defined in many PMU drivers, like HiSilicon PMU driver, Arm PMU driver, Arm SMMU PMU driver. So add a generic macro to simplify code.
Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Qi Liu <liuqi115@huawei.com> --- include/linux/perf_event.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index f5a6a2f..2d510ad 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1576,6 +1576,12 @@ static struct perf_pmu_events_attr _var = { \ .event_str = _str, \ }; +#define PMU_EVENT_ATTR_ID(_name, _show, _id) \ + (&((struct perf_pmu_events_attr[]) { \ + { .attr = __ATTR(_name, 0444, _show, NULL), \ + .id = _id, } \ + })[0].attr.attr) + #define PMU_FORMAT_ATTR(_name, _format) \ static ssize_t \ _name##_show(struct device *dev, \ -- 2.7.4
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