phonet: sparse annotations of protocol, remove forward declaration

net/phonet/af_phonet.c:38:36: error: marked inline, but without a definition
net/phonet/pep-gprs.c:63:10: warning: incorrect type in return expression (different base types)
net/phonet/pep-gprs.c:63:10:    expected int
net/phonet/pep-gprs.c:63:10:    got restricted __be16 [usertype] <noident>
net/phonet/pep-gprs.c:65:10: warning: incorrect type in return expression (different base types)
net/phonet/pep-gprs.c:65:10:    expected int
net/phonet/pep-gprs.c:65:10:    got restricted __be16 [usertype] <noident>
net/phonet/pep-gprs.c:124:16: warning: incorrect type in assignment (different base types)
net/phonet/pep-gprs.c:124:16:    expected restricted __be16 [usertype] protocol
net/phonet/pep-gprs.c:124:16:    got unsigned short [unsigned] [usertype] protocol

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/phonet/af_phonet.c

@@ -35,7 +35,11 @@
 
 static struct net_proto_family phonet_proto_family;
 static struct phonet_protocol *phonet_proto_get(int protocol);
-static inline void phonet_proto_put(struct phonet_protocol *pp);
+
+static inline void phonet_proto_put(struct phonet_protocol *pp)
+{
+	module_put(pp->prot->owner);
+}
 
 /* protocol family functions */
 
@@ -428,11 +432,6 @@ static struct phonet_protocol *phonet_proto_get(int protocol)
 	return pp;
 }
 
-static inline void phonet_proto_put(struct phonet_protocol *pp)
-{
-	module_put(pp->prot->owner);
-}
-
 /* Module registration */
 static int __init phonet_init(void)
 {

net/phonet/pep-gprs.c

@@ -49,14 +49,14 @@ struct gprs_dev {
 	unsigned		tx_max;
 };
 
-static int gprs_type_trans(struct sk_buff *skb)
+static __be16 gprs_type_trans(struct sk_buff *skb)
 {
 	const u8 *pvfc;
 	u8 buf;
 
 	pvfc = skb_header_pointer(skb, 0, 1, &buf);
 	if (!pvfc)
-		return 0;
+		return htons(0);
 	/* Look at IP version field */
 	switch (*pvfc >> 4) {
 	case 4:
@@ -64,7 +64,7 @@ static int gprs_type_trans(struct sk_buff *skb)
 	case 6:
 		return htons(ETH_P_IPV6);
 	}
-	return 0;
+	return htons(0);
 }
 
 /*
@@ -84,7 +84,7 @@ static void gprs_state_change(struct sock *sk)
 static int gprs_recv(struct gprs_dev *dev, struct sk_buff *skb)
 {
 	int err = 0;
-	u16 protocol = gprs_type_trans(skb);
+	__be16 protocol = gprs_type_trans(skb);
 
 	if (!protocol) {
 		err = -EINVAL;