From: Tom Zanussi <zanussi@kernel.org>
To: rostedt@goodmis.org
Cc: mhiramat@kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] tracing: Use str_has_prefix() in synth_event_create()
Date: Wed, 09 Jan 2019 13:34:11 -0600 [thread overview]
Message-ID: <1547062451.6258.7.camel@kernel.org> (raw)
Since we now have a str_has_prefix() that returns the length, we can
use that instead of explicitly calculating it.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
---
kernel/trace/trace_events_hist.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 449d90cfa151..625725ae262f 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -1200,8 +1200,7 @@ static int synth_event_create(int argc, const char **argv)
/* This interface accepts group name prefix */
if (strchr(name, '/')) {
- len = sizeof(SYNTH_SYSTEM "/") - 1;
- if (strncmp(name, SYNTH_SYSTEM "/", len))
+ if ((len = str_has_prefix(name, SYNTH_SYSTEM "/")) == 0)
return -EINVAL;
name += len;
}
--
2.14.1
reply other threads:[~2019-01-09 19:34 UTC|newest]
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