perf cpumap: Simplify equal function name

Rename cpu_map__compare_aggr_cpu_id() to aggr_cpu_id__equal(), the
cpu_map part of the name is misleading. Equal better describes the
function than compare.

Switch to const pointer rather than value as struct given the number of
variables in aggr_cpu_id().
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-14-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/cpumap.c

@@ -171,7 +171,7 @@ int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
 	for (cpu = 0; cpu < nr; cpu++) {
 		s1 = f(cpu, data);
 		for (s2 = 0; s2 < c->nr; s2++) {
-			if (cpu_map__compare_aggr_cpu_id(s1, c->map[s2]))
+			if (aggr_cpu_id__equal(&s1, &c->map[s2]))
 				break;
 		}
 		if (s2 == c->nr) {
@@ -593,13 +593,13 @@ const struct perf_cpu_map *cpu_map__online(void) /* thread unsafe */
 	return online;
 }
 
-bool cpu_map__compare_aggr_cpu_id(struct aggr_cpu_id a, struct aggr_cpu_id b)
+bool aggr_cpu_id__equal(const struct aggr_cpu_id *a, const struct aggr_cpu_id *b)
 {
-	return a.thread == b.thread &&
-		a.node == b.node &&
-		a.socket == b.socket &&
-		a.die == b.die &&
-		a.core == b.core;
+	return a->thread == b->thread &&
+		a->node == b->node &&
+		a->socket == b->socket &&
+		a->die == b->die &&
+		a->core == b->core;
 }
 
 bool cpu_map__aggr_cpu_id_is_empty(struct aggr_cpu_id a)

tools/perf/util/cpumap.h

@@ -67,7 +67,7 @@ int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
 int cpu_map__cpu(struct perf_cpu_map *cpus, int idx);
 bool cpu_map__has(struct perf_cpu_map *cpus, int cpu);
 
-bool cpu_map__compare_aggr_cpu_id(struct aggr_cpu_id a, struct aggr_cpu_id b);
+bool aggr_cpu_id__equal(const struct aggr_cpu_id *a, const struct aggr_cpu_id *b);
 bool cpu_map__aggr_cpu_id_is_empty(struct aggr_cpu_id a);
 struct aggr_cpu_id cpu_map__empty_aggr_cpu_id(void);
 

tools/perf/util/stat-display.c

@@ -328,20 +328,22 @@ static void print_metric_header(struct perf_stat_config *config,
 }
 
 static int first_shadow_cpu(struct perf_stat_config *config,
-			    struct evsel *evsel, struct aggr_cpu_id id)
+			    struct evsel *evsel, const struct aggr_cpu_id *id)
 {
 	struct perf_cpu_map *cpus;
 	int cpu, idx;
 
 	if (config->aggr_mode == AGGR_NONE)
-		return id.core;
+		return id->core;
 
 	if (!config->aggr_get_id)
 		return 0;
 
 	cpus = evsel__cpus(evsel);
 	perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
-		if (cpu_map__compare_aggr_cpu_id(config->aggr_get_id(config, cpu), id))
+		struct aggr_cpu_id cpu_id = config->aggr_get_id(config, cpu);
+
+		if (aggr_cpu_id__equal(&cpu_id, id))
 			return cpu;
 	}
 	return 0;
@@ -501,7 +503,7 @@ static void printout(struct perf_stat_config *config, struct aggr_cpu_id id, int
 	}
 
 	perf_stat__print_shadow_stats(config, counter, uval,
-				first_shadow_cpu(config, counter, id),
+				first_shadow_cpu(config, counter, &id),
 				&out, &config->metric_events, st);
 	if (!config->csv_output && !config->metric_only) {
 		print_noise(config, counter, noise);
@@ -525,12 +527,12 @@ static void aggr_update_shadow(struct perf_stat_config *config,
 			val = 0;
 			perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
 				s2 = config->aggr_get_id(config, cpu);
-				if (!cpu_map__compare_aggr_cpu_id(s2, id))
+				if (!aggr_cpu_id__equal(&s2, &id))
 					continue;
 				val += perf_counts(counter->counts, idx, 0)->val;
 			}
 			perf_stat__update_shadow_stats(counter, val,
-					first_shadow_cpu(config, counter, id),
+					first_shadow_cpu(config, counter, &id),
 					&rt_stat);
 		}
 	}
@@ -641,7 +643,7 @@ static void aggr_cb(struct perf_stat_config *config,
 		struct perf_counts_values *counts;
 
 		s2 = config->aggr_get_id(config, cpu);
-		if (!cpu_map__compare_aggr_cpu_id(s2, ad->id))
+		if (!aggr_cpu_id__equal(&s2, &ad->id))
 			continue;
 		if (first)
 			ad->nr++;
@@ -1217,7 +1219,7 @@ static void print_percore_thread(struct perf_stat_config *config,
 		s2 = config->aggr_get_id(config, cpu);
 		for (s = 0; s < config->aggr_map->nr; s++) {
 			id = config->aggr_map->map[s];
-			if (cpu_map__compare_aggr_cpu_id(s2, id))
+			if (aggr_cpu_id__equal(&s2, &id))
 				break;
 		}