1 files changed, 20 insertions, 5 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index c945fba4f543..c4132c1b63a8 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -132,6 +132,8 @@ struct net;
  *      @skc_rcv_saddr: Bound local IPv4 addr
  *      @skc_hash: hash value used with various protocol lookup tables
  *      @skc_u16hashes: two u16 hash values used by UDP lookup tables
+ *      @skc_dport: placeholder for inet_dport/tw_dport
+ *      @skc_num: placeholder for inet_num/tw_num
  *      @skc_family: network address family
  *      @skc_state: Connection state
  *      @skc_reuse: %SO_REUSEADDR setting
@@ -149,16 +151,29 @@ struct net;
  *      for struct sock and struct inet_timewait_sock.
  */
 struct sock_common {
-        /* skc_daddr and skc_rcv_saddr must be grouped :
-         * cf INET_MATCH() and INET_TW_MATCH()
+        /* skc_daddr and skc_rcv_saddr must be grouped on a 8 bytes aligned
+         * address on 64bit arches : cf INET_MATCH() and INET_TW_MATCH()
          */
-        __be32                  skc_daddr;
-        __be32                  skc_rcv_saddr;
-
+        union {
+                unsigned long   skc_addrpair;
+                struct {
+                        __be32  skc_daddr;
+                        __be32  skc_rcv_saddr;
+                };
+        };
         union  {
                 unsigned int    skc_hash;
                 __u16           skc_u16hashes[2];
         };
+        /* skc_dport && skc_num must be grouped as well */
+        union {
+                u32             skc_portpair;
+                struct {
+                        __be16  skc_dport;
+                        __u16   skc_num;
+                };
+        };
+
         unsigned short          skc_family;
         volatile unsigned char  skc_state;
         unsigned char           skc_reuse;