[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>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-04-25 19:08:35 -07:00
committed by David S. Miller
parent 965ffea43d
commit b529ccf279
15 changed files with 23 additions and 18 deletions

View File

@@ -847,7 +847,7 @@ static inline void inet_diag_rcv_skb(struct sk_buff *skb)
{
if (skb->len >= NLMSG_SPACE(0)) {
int err;
struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;
struct nlmsghdr *nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(*nlh) ||
skb->len < nlh->nlmsg_len)