netlink: constify nlmsghdr arguments
Consitfy nlmsghdr arguments to a couple of functions as preparation
for the next patch, which will constify the netlink message data in
all nfnetlink users.
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 5ba398e..0fbecbb 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -217,12 +217,13 @@
struct netlink_callback
{
- struct sk_buff *skb;
- struct nlmsghdr *nlh;
- int (*dump)(struct sk_buff * skb, struct netlink_callback *cb);
- int (*done)(struct netlink_callback *cb);
- int family;
- long args[6];
+ struct sk_buff *skb;
+ const struct nlmsghdr *nlh;
+ int (*dump)(struct sk_buff * skb,
+ struct netlink_callback *cb);
+ int (*done)(struct netlink_callback *cb);
+ int family;
+ long args[6];
};
struct netlink_notify
@@ -258,7 +259,7 @@
NLMSG_NEW(skb, pid, seq, type, len, 0)
extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
- struct nlmsghdr *nlh,
+ const struct nlmsghdr *nlh,
int (*dump)(struct sk_buff *skb, struct netlink_callback*),
int (*done)(struct netlink_callback*));