Message ID | 20220417185630.199062-3-ammarfaizi2@gnuweeb.org (mailing list archive) |
---|---|
State | Accepted |
Commit | 0267f188a27fd0146f6a644c0fdf8a4d63b69950 |
Headers | show |
Series | Two tracing patches for trace_events_hist.c | expand |
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 0b99ad68e3fa..1968e497ef44 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -6189,7 +6189,7 @@ static int event_hist_trigger_parse(struct event_command *cmd_ops, if (WARN_ON(!glob)) return -EINVAL; - if (strlen(glob)) { + if (glob[0]) { hist_err_clear(); last_cmd_set(file, param); }
No need to traverse to the end of string. If the first byte is not a NUL char, it's guaranteed `if (strlen(glob))` is true. Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org> --- kernel/trace/trace_events_hist.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)