diff --git a/include/net/sock.h b/include/net/sock.h
index 442cbb1..69afda6 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -389,6 +389,21 @@ struct sock {
 	 * Because of non atomicity rules, all
 	 * changes are protected by socket lock.
 	 */
+	unsigned int		__sk_flags_offset[0];
+#ifdef __BIG_ENDIAN_BITFIELD
+#define SK_FL_PROTO_SHIFT  16
+#define SK_FL_PROTO_MASK   0x00ff0000
+
+#define SK_FL_TYPE_SHIFT   0
+#define SK_FL_TYPE_MASK    0x0000ffff
+#else
+#define SK_FL_PROTO_SHIFT  8
+#define SK_FL_PROTO_MASK   0x0000ff00
+
+#define SK_FL_TYPE_SHIFT   16
+#define SK_FL_TYPE_MASK    0xffff0000
+#endif
+
 	kmemcheck_bitfield_begin(flags);
 	unsigned int		sk_padding : 2,
 				sk_no_check_tx : 1,