[PATCH] sysctl: quiet unused variable warning in fs/proc/proc_sysctl.c:init_header()

The init_header() function uses list_for_each_table_entry() without
using the entry argument. This causes a warning when building with W=1.
Since the code is correct, mark the associated variable as
__maybe_unused.

Signed-off-by: Ethan Nelson-Moore <[email protected]>
---
 fs/proc/proc_sysctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 04a382178c65..d0d76c31d330 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -206,7 +206,7 @@ static void init_header(struct ctl_table_header *head,
 	head->node = node;
 	INIT_HLIST_HEAD(&head->inodes);
 	if (node) {
-		const struct ctl_table *entry;
+		const struct ctl_table *entry __maybe_unused;
 
 		list_for_each_table_entry(entry, head) {
 			node->header = head;
-- 
2.43.0