[PATCH 3/6] ftrace: Assign RCU list variable with rcu_assign_ptr()

[Steven Rostedt]

From: "Steven Rostedt (Google)" <rost...@goodmis.org>

Use rcu_assign_ptr() to assign the list pointer as it is marked as RCU,
and this quiets the sparse warning:

   kernel/trace/ftrace.c:313:23: warning: incorrect type in assignment 
(different address spaces)
   kernel/trace/ftrace.c:313:23:    expected struct ftrace_ops [noderef] __rcu *
   kernel/trace/ftrace.c:313:23:    got struct ftrace_ops *

Signed-off-by: Steven Rostedt (Google) <rost...@goodmis.org>
---
 kernel/trace/ftrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 3af0b1feb873..a39842a53444 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -310,7 +310,7 @@ static int remove_ftrace_ops(struct ftrace_ops __rcu **list,
                        lockdep_is_held(&ftrace_lock)) == ops &&
            rcu_dereference_protected(ops->next,
                        lockdep_is_held(&ftrace_lock)) == &ftrace_list_end) {
-               *list = &ftrace_list_end;
+               rcu_assign_pointer(*list, &ftrace_list_end);
                return 0;
        }
 
-- 
2.43.0