From: Steven Rostedt <[email protected]>
To: [email protected]
Cc: Ingo Molnar <[email protected]>,
Andrew Morton <[email protected]>,
Ingo Molnar <[email protected]>,
GNU/Weeb Mailing List <[email protected]>,
Ammar Faizi <[email protected]>
Subject: [for-next][PATCH 16/21] tracing: Change `if (strlen(glob))` to `if (glob[0])`
Date: Wed, 27 Apr 2022 15:36:39 -0400 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: [email protected]
From: Ammar Faizi <[email protected]>
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.
Link: https://lkml.kernel.org/r/[email protected]
Cc: Ingo Molnar <[email protected]>
Cc: GNU/Weeb Mailing List <[email protected]>
Signed-off-by: Ammar Faizi <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
---
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 80c25be23c45..fe10179893c1 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -6217,7 +6217,7 @@ 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_and_filter);
}
--
2.35.1
prev parent reply other threads:[~2022-04-27 19:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <[email protected]>
2022-04-27 19:36 ` [for-next][PATCH 15/21] tracing: Return -EINVAL if WARN_ON(!glob) triggered in event_hist_trigger_parse() Steven Rostedt
2022-04-27 19:36 ` Steven Rostedt [this message]
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