[RFC 3/3] perf pmu: Restore auto-merging of PMU events created by prefix match

[Agustin Vega-Frias]

This was disabled when auto-merging of non-alias events was disabled in
commit 63ce844 (perf stat: Only auto-merge events that are PMU aliases).

Signed-off-by: Agustin Vega-Frias <agust...@codeaurora.org>
---
 tools/perf/util/parse-events.c | 13 +++----------
 tools/perf/util/parse-events.h |  2 +-
 tools/perf/util/parse-events.y |  4 ++--
 3 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index bafc91e..4e80ca3 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1217,7 +1217,7 @@ int parse_events_add_numeric(struct parse_events_state 
*parse_state,
                         get_config_name(head_config), &config_terms);
 }

-static int __parse_events_add_pmu(struct parse_events_state *parse_state,
+int parse_events_add_pmu(struct parse_events_state *parse_state,
                         struct list_head *list, char *name,
                         struct list_head *head_config, bool auto_merge_stats)
 {
@@ -1287,13 +1287,6 @@ static int __parse_events_add_pmu(struct 
parse_events_state *parse_state,
        return evsel ? 0 : -ENOMEM;
 }

-int parse_events_add_pmu(struct parse_events_state *parse_state,
-                        struct list_head *list, char *name,
-                        struct list_head *head_config)
-{
-       return __parse_events_add_pmu(parse_state, list, name, head_config, 
false);
-}
-
 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
                               char *str, struct list_head **listp)
 {
@@ -1323,8 +1316,8 @@ int parse_events_multi_pmu_add(struct parse_events_state 
*parse_state,
                                        return -1;
                                list_add_tail(&term->list, head);

-                               if (!__parse_events_add_pmu(parse_state, list,
-                                                           pmu->name, head, 
true)) {
+                               if (!parse_events_add_pmu(parse_state, list,
+                                                         pmu->name, head, 
true)) {
                                        pr_debug("%s -> %s/%s/\n", str,
                                                 pmu->name, alias->str);
                                        ok++;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 88108cd..5015cfd 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -167,7 +167,7 @@ int parse_events_add_breakpoint(struct list_head *list, int 
*idx,
                                void *ptr, char *type, u64 len);
 int parse_events_add_pmu(struct parse_events_state *parse_state,
                         struct list_head *list, char *name,
-                        struct list_head *head_config);
+                        struct list_head *head_config, bool auto_merge_stats);

 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
                               char *str,
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index c528469..b51278f 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -232,7 +232,7 @@ PE_NAME opt_event_config
                YYABORT;

        ALLOC_LIST(list);
-       if (parse_events_add_pmu(_parse_state, list, $1, $2)) {
+       if (parse_events_add_pmu(_parse_state, list, $1, $2, false)) {
                struct perf_pmu *pmu = NULL;
                int ok = 0;

@@ -245,7 +245,7 @@ PE_NAME opt_event_config
                        if (!strncmp($1, name, strlen($1)) || !fnmatch($1, 
name, 0)) {
                                if (parse_events_copy_term_list(orig_terms, 
&terms))
                                        YYABORT;
-                               if (!parse_events_add_pmu(_parse_state, list, 
pmu->name, terms))
+                               if (!parse_events_add_pmu(_parse_state, list, 
pmu->name, terms, true))
                                        ok++;
                                parse_events_terms__delete(terms);
                        }
--
2.7.4