3 files changed, 14 insertions, 14 deletions

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 743f5542d65a..d6770f295d5b 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1253,10 +1253,10 @@ 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();
@@ -1270,7 +1270,7 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
         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);
 
@@ -1298,8 +1298,8 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
         }
 
         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);
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0cd71b84e483..1cd608253940 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2481,19 +2481,19 @@ struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
         unsigned int mss = 1;
         int flush = 1;
 
-        if (!pskb_may_pull(skb, sizeof(*th)))
+        th = skb_gro_header(skb, sizeof(*th));
+        if (unlikely(!th))
                 goto out;
 
-        th = tcp_hdr(skb);
         thlen = th->doff * 4;
         if (thlen < sizeof(*th))
                 goto out;
 
-        if (!pskb_may_pull(skb, thlen))
+        th = skb_gro_header(skb, thlen);
+        if (unlikely(!th))
                 goto out;
 
-        th = tcp_hdr(skb);
-        __skb_pull(skb, thlen);
+        skb_gro_pull(skb, thlen);
 
         flags = tcp_flag_word(th);
 
@@ -2521,10 +2521,10 @@ found:
         flush |= th->ack_seq != th2->ack_seq || th->window != th2->window;
         flush |= memcmp(th + 1, th2 + 1, thlen - sizeof(*th));
 
-        total = p->len;
+        total = skb_gro_len(p);
         mss = skb_shinfo(p)->gso_size;
 
-        flush |= skb->len > mss || skb->len <= 0;
+        flush |= skb_gro_len(skb) > mss || !skb_gro_len(skb);
         flush |= ntohl(th2->seq) + total != ntohl(th->seq);
 
         if (flush || skb_gro_receive(head, skb)) {
@@ -2537,7 +2537,7 @@ found:
         tcp_flag_word(th2) |= flags & (TCP_FLAG_FIN | TCP_FLAG_PSH);
 
 out_check_final:
-        flush = skb->len < mss;
+        flush = skb_gro_len(skb) < mss;
         flush |= flags & (TCP_FLAG_URG | TCP_FLAG_PSH | TCP_FLAG_RST |
                           TCP_FLAG_SYN | TCP_FLAG_FIN);
 
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 19d7b429a262..f6b962f56ab4 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2355,7 +2355,7 @@ struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 
         switch (skb->ip_summed) {
         case CHECKSUM_COMPLETE:
-                if (!tcp_v4_check(skb->len, iph->saddr, iph->daddr,
+                if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr,
                                   skb->csum)) {
                         skb->ip_summed = CHECKSUM_UNNECESSARY;
                         break;