[NETLINK]: Fix sparse warnings

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/netlink.h

@@ -129,7 +129,7 @@ extern struct sock *netlink_kernel_create(int unit, unsigned int groups, void (*
 extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);
 extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock);
 extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 pid,
-			     __u32 group, int allocation);
+			     __u32 group, unsigned int __nocast allocation);
 extern void netlink_set_err(struct sock *ssk, __u32 pid, __u32 group, int code);
 extern int netlink_register_notifier(struct notifier_block *nb);
 extern int netlink_unregister_notifier(struct notifier_block *nb);

net/netlink/af_netlink.c

@@ -861,7 +861,7 @@ out:
 }
 
 int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
-		      u32 group, int allocation)
+		      u32 group, unsigned int __nocast allocation)
 {
 	struct netlink_broadcast_data info;
 	struct hlist_node *node;