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Subject[PATCH v12 01/16] tracing: Use str_has_prefix() in synth_event_create()
Date
From: Tom Zanussi <tom.zanussi@linux.intel.com>

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
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