[PATCH 03/21] perf pmu: Make pmu_sys_event_tables const.

[Ian Rogers]

Make lookup nature of data structures clearer through their type.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/perf/pmu-events/jevents.c    | 2 +-
 tools/perf/pmu-events/pmu-events.h | 2 +-
 tools/perf/tests/pmu-events.c      | 2 +-
 tools/perf/util/pmu.c              | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 5624a37d6f93..a31de0f77097 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -832,7 +832,7 @@ static void print_mapping_test_table(FILE *outfp)
 
 static void print_system_event_mapping_table_prefix(FILE *outfp)
 {
-	fprintf(outfp, "\nstruct pmu_sys_events pmu_sys_event_tables[] = {");
+	fprintf(outfp, "\nconst struct pmu_sys_events pmu_sys_event_tables[] = {");
 }
 
 static void print_system_event_mapping_table_suffix(FILE *outfp)
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index 42c6db6bedec..f6c9c9fc4ab2 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -54,6 +54,6 @@ struct pmu_sys_events {
  * table of PMU events.
  */
 extern const struct pmu_events_map pmu_events_map[];
-extern struct pmu_sys_events pmu_sys_event_tables[];
+extern const struct pmu_sys_events pmu_sys_event_tables[];
 
 #endif
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 8a1fdcd072f5..c0f8b61871c8 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -258,7 +258,7 @@ static const struct pmu_events_map *__test_pmu_get_events_map(void)
 
 static struct pmu_event *__test_pmu_get_sys_events_table(void)
 {
-	struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+	const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
 
 	for ( ; tables->name; tables++) {
 		if (!strcmp("pme_test_soc_sys", tables->name))
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 4bcdc595ce5e..c04a89cc7cef 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -873,7 +873,7 @@ void pmu_for_each_sys_event(pmu_sys_event_iter_fn fn, void *data)
 	int i = 0;
 
 	while (1) {
-		struct pmu_sys_events *event_table;
+		const struct pmu_sys_events *event_table;
 		int j = 0;
 
 		event_table = &pmu_sys_event_tables[i++];
-- 
2.33.0.882.g93a45727a2-goog