[PATCH -next] ftrace: Use list_move instead of list_del/list_add

From: Baokun Li
Date: Mon Jun 07 2021 - 23:02:10 EST


Using list_move() instead of list_del() + list_add().

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
---
kernel/trace/ftrace.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 2e8a3fde7104..2c0374056637 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4206,8 +4206,7 @@ static void process_mod_list(struct list_head *head, struct ftrace_ops *ops,
if (!func) /* warn? */
continue;

- list_del(&ftrace_mod->list);
- list_add(&ftrace_mod->list, &process_mods);
+ list_move(&ftrace_mod->list, &process_mods);

/* Use the newly allocated func, as it may be "*" */
kfree(ftrace_mod->func);