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[NETLINK]: Introduce nlmsg_hdr() helper

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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
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4
fs/ecryptfs/netlink.c
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@@ -97,7 +97,7 @@ out:
*/
static int ecryptfs_process_nl_response(struct sk_buff *skb)
{
struct nlmsghdr *nlh = (struct nlmsghdr*)skb->data;
struct nlmsghdr *nlh = nlmsg_hdr(skb);
struct ecryptfs_message *msg = NLMSG_DATA(nlh);
int rc;
@@ -181,7 +181,7 @@ receive:
"rc = [%d]\n", rc);
return;
}
nlh = (struct nlmsghdr *)skb->data;
nlh = nlmsg_hdr(skb);
if (!NLMSG_OK(nlh, skb->len)) {
ecryptfs_printk(KERN_ERR, "Received corrupt netlink "
"message\n");