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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-04-25 19:08:35 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:26:34 -0700
commitb529ccf2799c14346d1518e9bdf1f88f03643e99 (patch)
treef899a5a5d66d2ca21724c1871ee3afeda6c4a670 /net/ipv4
parent965ffea43d4ebe8cd7b9fee78d651268dd7d23c5 (diff)
downloadlinux-b529ccf2799c14346d1518e9bdf1f88f03643e99.tar.bz2
[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>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/fib_frontend.c2
-rw-r--r--net/ipv4/inet_diag.c2
-rw-r--r--net/ipv4/netfilter/ip_queue.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index cac06c43f004..3ff753c6f197 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -807,7 +807,7 @@ static void nl_fib_input(struct sock *sk, int len)
if (skb == NULL)
return;
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
if (skb->len < NLMSG_SPACE(0) || skb->len < nlh->nlmsg_len ||
nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*frn))) {
kfree_skb(skb);
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 37362cd1d07f..238999e6e871 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -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)
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 15e0d2002235..17f7c988460c 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -497,7 +497,7 @@ 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;