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perf evswitch: Move enoent error message printing to separate function 

Allows adding hints there, will be done in followup patch.

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-1kvrdi7weuz3hxycwvarcu6v@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-08-15 11:35:56 -03:00
parent 124e02be72
commit c9a4269930
1 changed files with 7 additions and 2 deletions
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9
tools/perf/util/evswitch.c
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@ -31,12 +31,17 @@ bool evswitch__discard(struct evswitch *evswitch, struct evsel *evsel)
return false;
}
static int evswitch__fprintf_enoent(FILE *fp, const char *evtype, const char *evname)
{
return fprintf(fp, "ERROR: switch-%s event not found (%s)\n", evtype, evname);
}
int evswitch__init(struct evswitch *evswitch, struct evlist *evlist, FILE *fp)
{
if (evswitch->on_name) {
evswitch->on = perf_evlist__find_evsel_by_str(evlist, evswitch->on_name);
if (evswitch->on == NULL) {
fprintf(fp, "switch-on event not found (%s)\n", evswitch->on_name);
evswitch__fprintf_enoent(fp, "on", evswitch->on_name);
return -ENOENT;
}
evswitch->discarding = true;
@ -45,7 +50,7 @@ int evswitch__init(struct evswitch *evswitch, struct evlist *evlist, FILE *fp)
if (evswitch->off_name) {
evswitch->off = perf_evlist__find_evsel_by_str(evlist, evswitch->off_name);
if (evswitch->off == NULL) {
fprintf(fp, "switch-off event not found (%s)\n", evswitch->off_name);
evswitch__fprintf_enoent(fp, "off", evswitch->off_name);
return -ENOENT;
}
}