Messages in this thread Patch in this message |  | | From | Ammar Faizi <> | Subject | [PATCH 2/2] tracing: Change `if (strlen(glob))` to `if (glob[0])` | Date | Mon, 18 Apr 2022 01:53:23 +0700 |
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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(-)
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); } -- Ammar Faizi
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