1 files changed, 14 insertions, 14 deletions

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 3a3dad801354..7f03373b8c07 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -369,7 +369,6 @@ lookup_protocol:
         sock_init_data(sock, sk);
 
         sk->sk_destruct    = inet_sock_destruct;
-        sk->sk_family      = PF_INET;
         sk->sk_protocol    = protocol;
         sk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
 
@@ -1253,10 +1252,10 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
         int proto;
         int id;
 
-        if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
+        iph = skb_gro_header(skb, sizeof(*iph));
+        if (unlikely(!iph))
                 goto out;
 
-        iph = ip_hdr(skb);
         proto = iph->protocol & (MAX_INET_PROTOS - 1);
 
         rcu_read_lock();
@@ -1264,13 +1263,13 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
         if (!ops || !ops->gro_receive)
                 goto out_unlock;
 
-        if (iph->version != 4 || iph->ihl != 5)
+        if (*(u8 *)iph != 0x45)
                 goto out_unlock;
 
         if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
                 goto out_unlock;
 
-        flush = ntohs(iph->tot_len) != skb->len ||
+        flush = ntohs(iph->tot_len) != skb_gro_len(skb) ||
                 iph->frag_off != htons(IP_DF);
         id = ntohs(iph->id);
 
@@ -1282,24 +1281,25 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 
                 iph2 = ip_hdr(p);
 
-                if (iph->protocol != iph2->protocol ||
-                    iph->tos != iph2->tos ||
-                    memcmp(&iph->saddr, &iph2->saddr, 8)) {
+                if ((iph->protocol ^ iph2->protocol) |
+                    (iph->tos ^ iph2->tos) |
+                    (iph->saddr ^ iph2->saddr) |
+                    (iph->daddr ^ iph2->daddr)) {
                         NAPI_GRO_CB(p)->same_flow = 0;
                         continue;
                 }
 
                 /* All fields must match except length and checksum. */
                 NAPI_GRO_CB(p)->flush |=
-                        memcmp(&iph->frag_off, &iph2->frag_off, 4) ||
-                        (u16)(ntohs(iph2->id) + NAPI_GRO_CB(p)->count) != id;
+                        (iph->ttl ^ iph2->ttl) |
+                        ((u16)(ntohs(iph2->id) + NAPI_GRO_CB(p)->count) ^ id);
 
                 NAPI_GRO_CB(p)->flush |= flush;
         }
 
         NAPI_GRO_CB(skb)->flush |= flush;
-        __skb_pull(skb, sizeof(*iph));
-        skb_reset_transport_header(skb);
+        skb_gro_pull(skb, sizeof(*iph));
+        skb_set_transport_header(skb, skb_gro_offset(skb));
 
         pp = ops->gro_receive(head, skb);
 
@@ -1500,8 +1500,8 @@ static int ipv4_proc_init(void);
  *      IP protocol layer initialiser
  */
 
-static struct packet_type ip_packet_type = {
-        .type = __constant_htons(ETH_P_IP),
+static struct packet_type ip_packet_type __read_mostly = {
+        .type = cpu_to_be16(ETH_P_IP),
         .func = ip_rcv,
         .gso_send_check = inet_gso_send_check,
         .gso_segment = inet_gso_segment,