[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

@ -3786,7 +3786,7 @@ static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
err = -EINVAL;
goto out;
}
nlh = (struct nlmsghdr *)skb->data;
nlh = nlmsg_hdr(skb);
err = selinux_nlmsg_lookup(isec->sclass, nlh->nlmsg_type, &perm);
if (err) {