arm64: perf: Simplify EVENT ATTR macro in perf_event.c

Use common macro PMU_EVENT_ATTR_ID to simplify ARMV8_EVENT_ATTR

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>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Link: https://lore.kernel.org/r/1623220863-58233-8-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>

arch/arm64/kernel/perf_event.c

@@ -165,10 +165,7 @@ armv8pmu_events_sysfs_show(struct device *dev,
 }
 
 #define ARMV8_EVENT_ATTR(name, config)						\
-	(&((struct perf_pmu_events_attr) {					\
-		.attr = __ATTR(name, 0444, armv8pmu_events_sysfs_show, NULL),	\
-		.id = config,							\
-	}).attr.attr)
+	PMU_EVENT_ATTR_ID(name, armv8pmu_events_sysfs_show, config)
 
 static struct attribute *armv8_pmuv3_event_attrs[] = {
 	ARMV8_EVENT_ATTR(sw_incr, ARMV8_PMUV3_PERFCTR_SW_INCR),