From: Tom Zanussi <zanussi@kernel.org>
To: rostedt@goodmis.org
Cc: tglx@linutronix.de, mhiramat@kernel.org, namhyung@kernel.org,
vedang.patel@intel.com, bigeasy@linutronix.de,
joel@joelfernandes.org, mathieu.desnoyers@efficios.com,
julia@ni.com, linux-kernel@vger.kernel.org,
linux-rt-users@vger.kernel.org
Subject: [PATCH v12 01/16] tracing: Use str_has_prefix() in synth_event_create()
Date: Tue, 15 Jan 2019 16:05:45 -0600 [thread overview]
Message-ID: <aa6e33335e1ff99c7ac3d00fa5e27faaad04f981.1547589128.git.tom.zanussi@linux.intel.com> (raw)
In-Reply-To: <cover.1547589128.git.tom.zanussi@linux.intel.com>
In-Reply-To: <cover.1547589128.git.tom.zanussi@linux.intel.com>
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
next prev parent reply other threads:[~2019-01-15 22:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-15 22:05 [PATCH v12 00/16] tracing: Hist trigger snapshot and onchange additions Tom Zanussi
2019-01-15 22:05 ` Tom Zanussi [this message]
2019-01-16 4:59 ` [PATCH v12 01/16] tracing: Use str_has_prefix() in synth_event_create() Joe Perches
2019-01-16 15:50 ` Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 02/16] tracing: Refactor hist trigger action code Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 03/16] tracing: Make hist trigger Documentation better reflect actions/handlers Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 04/16] tracing: Split up onmatch action data Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 05/16] tracing: Generalize hist trigger onmax and save action Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 06/16] tracing: Add conditional snapshot Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 07/16] tracing: Add hist trigger snapshot() action Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 08/16] tracing: Add hist trigger snapshot() action Documentation Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 09/16] tracing: Add hist trigger onchange() handler Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 10/16] tracing: Add hist trigger onchange() handler Documentation Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 11/16] tracing: Add alternative synthetic event trace action syntax Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 12/16] tracing: Add SPDX license GPL-2.0 license identifier to inter-event testcases Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 13/16] tracing: Add hist trigger snapshot() action test case Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 14/16] tracing: Add hist trigger onchange() handler " Tom Zanussi
2019-01-15 22:05 ` [PATCH v12 15/16] tracing: Add alternative synthetic event trace action " Tom Zanussi
2019-01-15 22:06 ` [PATCH v12 16/16] tracing: Add hist trigger action 'expected fail' " Tom Zanussi
2019-01-16 6:43 ` [PATCH v12 00/16] tracing: Hist trigger snapshot and onchange additions Namhyung Kim
2019-01-16 19:02 ` Tom Zanussi
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