perf stat: Merge cases in process_evlist

As two cases in process_evlist has same behavior, make the first fall
through to the second.

Commiter notes:

Added __fallthrough, the kernel has "fallthrough", we need to make
tools/ use it.

Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220922141438.22487-3-shangxiaojing@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index e05fe72c1d8704aec8f6e7e76943a1aa42ba7f18..7b8e901bce101b634007e5bb1b51a316b30d1171 100644 (file)
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -662,9 +662,7 @@ static void process_evlist(struct evlist *evlist, unsigned int interval)
        if (evlist__ctlfd_process(evlist, &cmd) > 0) {
                switch (cmd) {
                case EVLIST_CTL_CMD_ENABLE:
-                       if (interval)
-                               process_interval();
-                       break;
+                       __fallthrough;
                case EVLIST_CTL_CMD_DISABLE:
                        if (interval)
                                process_interval();