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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 /kernel
parent965ffea43d4ebe8cd7b9fee78d651268dd7d23c5 (diff)
downloadlinux-linaro-stable-b529ccf2799c14346d1518e9bdf1f88f03643e99.tar.gz
[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 'kernel')
-rw-r--r--kernel/audit.c6
-rw-r--r--kernel/taskstats.c4
2 files changed, 5 insertions, 5 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index ea8521417d13..80a7457dadbf 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -151,7 +151,7 @@ struct audit_buffer {
static void audit_set_pid(struct audit_buffer *ab, pid_t pid)
{
- struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
nlh->nlmsg_pid = pid;
}
@@ -750,7 +750,7 @@ static void audit_receive_skb(struct sk_buff *skb)
u32 rlen;
while (skb->len >= NLMSG_SPACE(0)) {
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
return;
rlen = NLMSG_ALIGN(nlh->nlmsg_len);
@@ -1268,7 +1268,7 @@ void audit_log_end(struct audit_buffer *ab)
audit_log_lost("rate limit exceeded");
} else {
if (audit_pid) {
- struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
nlh->nlmsg_len = ab->skb->len - NLMSG_SPACE(0);
skb_queue_tail(&audit_skb_queue, ab->skb);
ab->skb = NULL;
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 4c3476fa058d..ad7d2392cb0e 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -102,7 +102,7 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
*/
static int send_reply(struct sk_buff *skb, pid_t pid)
{
- struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+ struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
void *reply = genlmsg_data(genlhdr);
int rc;
@@ -121,7 +121,7 @@ static int send_reply(struct sk_buff *skb, pid_t pid)
static void send_cpu_listeners(struct sk_buff *skb,
struct listener_list *listeners)
{
- struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+ struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
struct listener *s, *tmp;
struct sk_buff *skb_next, *skb_cur = skb;
void *reply = genlmsg_data(genlhdr);