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tracing: remove set but not used variable 'buffer'

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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.

Link: http://lkml.kernel.org/r/20191207034409.25668-1-yuehaibing@huawei.com

Reported-by: Hulk Robot <hulkci@huawei.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
YueHaibing 2019-12-07 11:44:09 +08:00 committed by Steven Rostedt (VMware)
parent af74262337
commit a61f810567
1 changed files with 0 additions and 2 deletions
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2
kernel/trace/trace_events_inject.c
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@ -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);