--- a/module/netatop.c
+++ b/module/netatop.c
@@ -1617,7 +1617,7 @@ getsockopt(struct sock *sk, int cmd, void __user *user, int *len)
case NETATOP_GETCNT_TGID:
tasktype = 'g';
- // fall through
+ fallthrough;
case NETATOP_GETCNT_PID:
if (*len < sizeof(pid_t))
return -EINVAL;