perf evswitch: Introduce init() method to set the on/off evsels from the command line

Another step in having all the boilerplate in just one place to then use
in the other tools.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: William Cohen <wcohen@redhat.com>
Link: https://lkml.kernel.org/n/tip-snreb1wmwyjei3eefwotxp1l@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 18 deletions

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 2a5b8af80e6b..1764efd16cd4 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -3868,24 +3868,9 @@ int cmd_script(int argc, const char **argv)
                                                   script.range_num);
         }
 
-        if (script.evswitch.on_name) {
-                script.evswitch.on = perf_evlist__find_evsel_by_str(session->evlist, script.evswitch.on_name);
-                if (script.evswitch.on == NULL) {
-                        fprintf(stderr, "switch-on event not found (%s)\n", script.evswitch.on_name);
-                        err = -ENOENT;
-                        goto out_delete;
-                }
-                script.evswitch.discarding = true;
-        }
-
-        if (script.evswitch.off_name) {
-                script.evswitch.off = perf_evlist__find_evsel_by_str(session->evlist, script.evswitch.off_name);
-                if (script.evswitch.off == NULL) {
-                        fprintf(stderr, "switch-off event not found (%s)\n", script.evswitch.off_name);
-                        err = -ENOENT;
-                        goto out_delete;
-                }
-        }
+        err = evswitch__init(&script.evswitch, session->evlist, stderr);
+        if (err)
+                goto out_delete;
 
         err = __cmd_script(&script);