[NETLINK]: Introduce nlmsg_hdr() helper

For the common "(struct nlmsghdr *)skb->data" sequence, so that we reduce the
number of direct accesses to skb->data and for consistency with all the other
cast skb member helpers.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 5cfce218c5e1..275e625e4977 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -487,7 +487,7 @@ ipq_rcv_skb(struct sk_buff *skb)
         if (skblen < sizeof(*nlh))
                 return;
 
-        nlh = (struct nlmsghdr *)skb->data;
+        nlh = nlmsg_hdr(skb);
         nlmsglen = nlh->nlmsg_len;
         if (nlmsglen < sizeof(*nlh) || skblen < nlmsglen)
                 return;