[SK_BUFF]: Use skb_reset_network_header where the skb_pull return was being used

But only in the cases where its a newly allocated skb, i.e. one where skb->tail
is equal to skb->data, or just after skb_reserve, where this requirement is
maintained.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 87e9c1618100..67e5e3c035c1 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -291,7 +291,9 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
         skb->priority = sk->sk_priority;
         skb->dst = dst_clone(&rt->u.dst);
 
-        skb->nh.iph = iph = (struct iphdr *)skb_put(skb, length);
+        skb_reset_network_header(skb);
+        iph = skb->nh.iph;
+        skb_put(skb, length);
 
         skb->ip_summed = CHECKSUM_NONE;