tracing: Remove unused event variable in tracing_iter_reset

We do not use the event variable, just remove it.

Signed-off-by: YangHui <yanghui.def@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index ec44b0e2a19c3bf2f9fa274b7e0c63022005a82d..bb62269724d5f4f4953f7bee08d7edec4e8c69e5 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3570,7 +3570,6 @@ static void *s_next(struct seq_file *m, void *v, loff_t *pos)
 
 void tracing_iter_reset(struct trace_iterator *iter, int cpu)
 {
-       struct ring_buffer_event *event;
        struct ring_buffer_iter *buf_iter;
        unsigned long entries = 0;
        u64 ts;
@@ -3588,7 +3587,7 @@ void tracing_iter_reset(struct trace_iterator *iter, int cpu)
         * that a reset never took place on a cpu. This is evident
         * by the timestamp being before the start of the buffer.
         */
-       while ((event = ring_buffer_iter_peek(buf_iter, &ts))) {
+       while (ring_buffer_iter_peek(buf_iter, &ts)) {
                if (ts >= iter->array_buffer->time_start)
                        break;
                entries++;