1 files changed, 1 insertions, 0 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 182ca99405ad..5a34e2f03657 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -664,6 +664,7 @@ enum sock_flags {
                      * Will use last 4 bytes of packet sent from
                      * user-space instead.
                      */
+        SOCK_FILTER_LOCKED, /* Filter cannot be changed anymore */
 };
 
 static inline void sock_copy_flags(struct sock *nsk, struct sock *osk)