[DECnet]: Endian annotation and fixes for DECnet.

The typedef for dn_address has been removed in favour of using __le16
or __u16 directly as appropriate. All the DECnet header files are
updated accordingly.

The byte ordering of dn_eth2dn() and dn_dn2eth() are both changed
since just about all their callers wanted network order rather than
host order, so the conversion is now done in the functions themselves.

Several missed endianess conversions have been picked up during the
conversion process. The nh_gw field in struct dn_fib_info has been
changed from a 32 bit field to 16 bits as it ought to be.

One or two cases of using htons rather than dn_htons in the routing
code have been found and fixed.

There are still a few warnings to fix, but this patch deals with the
important cases.

Signed-off-by: Steven Whitehouse <steve@chygwyn.com>
Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 12 deletions

diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index 33ab256cfd4a..7c8692c26bfe 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -95,7 +95,7 @@ static struct neigh_ops dn_phase3_ops = {
 struct neigh_table dn_neigh_table = {
 	.family =			PF_DECnet,
 	.entry_size =			sizeof(struct dn_neigh),
-	.key_len =			sizeof(dn_address),
+	.key_len =			sizeof(__le16),
 	.hash =				dn_neigh_hash,
 	.constructor =			dn_neigh_construct,
 	.id =				"dn_neigh_cache",
@@ -123,7 +123,7 @@ struct neigh_table dn_neigh_table = {
 
 static u32 dn_neigh_hash(const void *pkey, const struct net_device *dev)
 {
-	return jhash_2words(*(dn_address *)pkey, 0, dn_neigh_table.hash_rnd);
+	return jhash_2words(*(__u16 *)pkey, 0, dn_neigh_table.hash_rnd);
 }
 
 static int dn_neigh_construct(struct neighbour *neigh)
@@ -249,14 +249,14 @@ static int dn_long_output(struct sk_buff *skb)
 	data = skb_push(skb, sizeof(struct dn_long_packet) + 3);
 	lp = (struct dn_long_packet *)(data+3);
 
-	*((unsigned short *)data) = dn_htons(skb->len - 2);
+	*((__le16 *)data) = dn_htons(skb->len - 2);
 	*(data + 2) = 1 | DN_RT_F_PF; /* Padding */
 
 	lp->msgflg   = DN_RT_PKT_LONG|(cb->rt_flags&(DN_RT_F_IE|DN_RT_F_RQR|DN_RT_F_RTS));
 	lp->d_area   = lp->d_subarea = 0;
-	dn_dn2eth(lp->d_id, dn_ntohs(cb->dst));
+	dn_dn2eth(lp->d_id, cb->dst);
 	lp->s_area   = lp->s_subarea = 0;
-	dn_dn2eth(lp->s_id, dn_ntohs(cb->src));
+	dn_dn2eth(lp->s_id, cb->src);
 	lp->nl2      = 0;
 	lp->visit_ct = cb->hops & 0x3f;
 	lp->s_class  = 0;
@@ -293,7 +293,7 @@ static int dn_short_output(struct sk_buff *skb)
         }
 
 	data = skb_push(skb, sizeof(struct dn_short_packet) + 2);
-	*((unsigned short *)data) = dn_htons(skb->len - 2);
+	*((__le16 *)data) = dn_htons(skb->len - 2);
 	sp = (struct dn_short_packet *)(data+2);
 
 	sp->msgflg     = DN_RT_PKT_SHORT|(cb->rt_flags&(DN_RT_F_RQR|DN_RT_F_RTS));
@@ -335,7 +335,7 @@ static int dn_phase3_output(struct sk_buff *skb)
 	}
 
 	data = skb_push(skb, sizeof(struct dn_short_packet) + 2);
-	*((unsigned short *)data) = dn_htons(skb->len - 2);
+	*((__le16 *)data) = dn_htons(skb->len - 2);
 	sp = (struct dn_short_packet *)(data + 2);
 
 	sp->msgflg   = DN_RT_PKT_SHORT|(cb->rt_flags&(DN_RT_F_RQR|DN_RT_F_RTS));
@@ -373,9 +373,9 @@ int dn_neigh_router_hello(struct sk_buff *skb)
 	struct neighbour *neigh;
 	struct dn_neigh *dn;
 	struct dn_dev *dn_db;
-	dn_address src;
+	__le16 src;
 
-	src = dn_htons(dn_eth2dn(msg->id));
+	src = dn_eth2dn(msg->id);
 
 	neigh = __neigh_lookup(&dn_neigh_table, &src, skb->dev, 1);
 
@@ -409,7 +409,7 @@ int dn_neigh_router_hello(struct sk_buff *skb)
 		}
 
 		/* Only use routers in our area */
-		if ((dn_ntohs(src)>>10) == dn_ntohs((decnet_address)>>10)) {
+		if ((dn_ntohs(src)>>10) == (dn_ntohs((decnet_address))>>10)) {
 			if (!dn_db->router) {
 				dn_db->router = neigh_clone(neigh);
 			} else {
@@ -433,9 +433,9 @@ int dn_neigh_endnode_hello(struct sk_buff *skb)
 	struct endnode_hello_message *msg = (struct endnode_hello_message *)skb->data;
 	struct neighbour *neigh;
 	struct dn_neigh *dn;
-	dn_address src;
+	__le16 src;
 
-	src = dn_htons(dn_eth2dn(msg->id));
+	src = dn_eth2dn(msg->id);
 
 	neigh = __neigh_lookup(&dn_neigh_table, &src, skb->dev, 1);