[NETLINK] genetlink: fix cmd type in genl_ops to be consistent to u8

Signed-off-by: Per Liden <per.liden@ericsson.com>
ACKed-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/genetlink.h

@@ -60,7 +60,7 @@ struct genl_info
  */
 struct genl_ops
 {
-	unsigned int		cmd;
+	u8			cmd;
 	unsigned int		flags;
 	struct nla_policy	*policy;
 	int		       (*doit)(struct sk_buff *skb,

net/netlink/genetlink.c

@@ -441,7 +441,7 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
 }
 
 static struct sk_buff *ctrl_build_msg(struct genl_family *family, u32 pid,
-				      int seq, int cmd)
+				      int seq, u8 cmd)
 {
 	struct sk_buff *skb;
 	int err;