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From: YueHaibing <yuehaibing@huawei.com>
To: <rostedt@goodmis.org>, <mingo@redhat.com>, <xiyou.wangcong@gmail.com>
Cc: <linux-kernel@vger.kernel.org>, YueHaibing <yuehaibing@huawei.com>
Subject: [PATCH -next] tracing: remove set but not used variable 'buffer'
Date: Sat, 7 Dec 2019 11:44:09 +0800	[thread overview]
Message-ID: <20191207034409.25668-1-yuehaibing@huawei.com> (raw)

kernel/trace/trace_events_inject.c: In function trace_inject_entry:
kernel/trace/trace_events_inject.c:20:22: warning: variable buffer set but not used [-Wunused-but-set-variable]

It is never used, so remove it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 kernel/trace/trace_events_inject.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/trace/trace_events_inject.c b/kernel/trace/trace_events_inject.c
index d437107..d45079e 100644
--- a/kernel/trace/trace_events_inject.c
+++ b/kernel/trace/trace_events_inject.c
@@ -17,12 +17,10 @@ static int
 trace_inject_entry(struct trace_event_file *file, void *rec, int len)
 {
 	struct trace_event_buffer fbuffer;
-	struct ring_buffer *buffer;
 	int written = 0;
 	void *entry;
 
 	rcu_read_lock_sched();
-	buffer = file->tr->trace_buffer.buffer;
 	entry = trace_event_buffer_reserve(&fbuffer, file, len);
 	if (entry) {
 		memcpy(entry, rec, len);
-- 
2.7.4



             reply	other threads:[~2019-12-07  3:47 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-07  3:44 YueHaibing [this message]
2019-12-07 19:02 ` [PATCH -next] tracing: remove set but not used variable 'buffer' Cong Wang

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