[PATCH] tracing: Remove redundant 0 value initialization

Liao Yuanhong posted 1 patch 1 month, 1 week ago
kernel/trace/trace_sched_switch.c | 1 -
1 file changed, 1 deletion(-)
[PATCH] tracing: Remove redundant 0 value initialization
Posted by Liao Yuanhong 1 month, 1 week ago
The saved_cmdlines_buffer struct is already zeroed by memset(). It's
redundant to initialize s->cmdline_idx to 0.

Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
---
 kernel/trace/trace_sched_switch.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index cb49f7279dc8..518dfc74347a 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -224,7 +224,6 @@ static struct saved_cmdlines_buffer *allocate_cmdlines_buffer(unsigned int val)
 	/* Place map_cmdline_to_pid array right after saved_cmdlines */
 	s->map_cmdline_to_pid = (unsigned *)&s->saved_cmdlines[val * TASK_COMM_LEN];
 
-	s->cmdline_idx = 0;
 	memset(&s->map_pid_to_cmdline, NO_CMDLINE_MAP,
 	       sizeof(s->map_pid_to_cmdline));
 	memset(s->map_cmdline_to_pid, NO_CMDLINE_MAP,
-- 
2.34.1