X-Git-Url: http://git.agner.ch/gitweb/?p=linux-drm-fsl-dcu.git;a=blobdiff_plain;f=net%2Fipv6%2Fsit.c;h=4d3cf301e1fc92de72bec69dc34ebfd26d374196;hp=b481a4d780c239f229d9d28aae7c0239fc589f76;hb=574009c1a895aeeb85eaab29c235d75852b09eb8;hpb=12cbbd95e12e911b43afae7f6f4850f616223642

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index b481a4d780c2..4d3cf301e1fc 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -3,7 +3,7 @@
  *	Linux INET6 implementation
  *
  *	Authors:
- *	Pedro Roque		<roque@di.fc.ul.pt>	
+ *	Pedro Roque		<roque@di.fc.ul.pt>
  *	Alexey Kuznetsov	<kuznet@ms2.inr.ac.ru>
  *
  *	$Id: sit.c,v 1.53 2001/09/25 05:09:53 davem Exp $
@@ -60,7 +60,7 @@
  */
 
 #define HASH_SIZE  16
-#define HASH(addr) ((addr^(addr>>4))&0xF)
+#define HASH(addr) (((__force u32)addr^((__force u32)addr>>4))&0xF)
 
 static int ipip6_fb_tunnel_init(struct net_device *dev);
 static int ipip6_tunnel_init(struct net_device *dev);
@@ -76,7 +76,7 @@ static struct ip_tunnel **tunnels[4] = { tunnels_wc, tunnels_l, tunnels_r, tunne
 
 static DEFINE_RWLOCK(ipip6_lock);
 
-static struct ip_tunnel * ipip6_tunnel_lookup(u32 remote, u32 local)
+static struct ip_tunnel * ipip6_tunnel_lookup(__be32 remote, __be32 local)
 {
 	unsigned h0 = HASH(remote);
 	unsigned h1 = HASH(local);
@@ -102,8 +102,8 @@ static struct ip_tunnel * ipip6_tunnel_lookup(u32 remote, u32 local)
 
 static struct ip_tunnel ** ipip6_bucket(struct ip_tunnel *t)
 {
-	u32 remote = t->parms.iph.daddr;
-	u32 local = t->parms.iph.saddr;
+	__be32 remote = t->parms.iph.daddr;
+	__be32 local = t->parms.iph.saddr;
 	unsigned h = 0;
 	int prio = 0;
 
@@ -144,8 +144,8 @@ static void ipip6_tunnel_link(struct ip_tunnel *t)
 
 static struct ip_tunnel * ipip6_tunnel_locate(struct ip_tunnel_parm *parms, int create)
 {
-	u32 remote = parms->iph.daddr;
-	u32 local = parms->iph.saddr;
+	__be32 remote = parms->iph.daddr;
+	__be32 local = parms->iph.saddr;
 	struct ip_tunnel *t, **tp, *nt;
 	struct net_device *dev;
 	unsigned h = 0;
@@ -405,12 +405,12 @@ out:
 /* Returns the embedded IPv4 address if the IPv6 address
    comes from 6to4 (RFC 3056) addr space */
 
-static inline u32 try_6to4(struct in6_addr *v6dst)
+static inline __be32 try_6to4(struct in6_addr *v6dst)
 {
-	u32 dst = 0;
+	__be32 dst = 0;
 
 	if (v6dst->s6_addr16[0] == htons(0x2002)) {
-	        /* 6to4 v6 addr has 16 bits prefix, 32 v4addr, 16 SLA, ... */
+		/* 6to4 v6 addr has 16 bits prefix, 32 v4addr, 16 SLA, ... */
 		memcpy(&dst, &v6dst->s6_addr16[1], 4);
 	}
 	return dst;
@@ -432,9 +432,9 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct net_device *tdev;			/* Device to other host */
 	struct iphdr  *iph;			/* Our new IP header */
 	int    max_headroom;			/* The extra header space needed */
-	u32    dst = tiph->daddr;
+	__be32 dst = tiph->daddr;
 	int    mtu;
-	struct in6_addr *addr6;	
+	struct in6_addr *addr6;
 	int addr_type;
 
 	if (tunnel->recursion++) {
@@ -537,7 +537,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom);
 		if (!new_skb) {
 			ip_rt_put(rt);
-  			stats->tx_dropped++;
+			stats->tx_dropped++;
 			dev_kfree_skb(skb);
 			tunnel->recursion--;
 			return 0;
@@ -686,7 +686,8 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 				goto done;
 			dev = t->dev;
 		}
-		err = unregister_netdevice(dev);
+		unregister_netdevice(dev);
+		err = 0;
 		break;
 
 	default:
@@ -809,7 +810,7 @@ static void __exit sit_destroy_tunnels(void)
 	}
 }
 
-void __exit sit_cleanup(void)
+static void __exit sit_cleanup(void)
 {
 	inet_del_protocol(&sit_protocol, IPPROTO_IPV6);
 
@@ -819,7 +820,7 @@ void __exit sit_cleanup(void)
 	rtnl_unlock();
 }
 
-int __init sit_init(void)
+static int __init sit_init(void)
 {
 	int err;
 
@@ -830,7 +831,7 @@ int __init sit_init(void)
 		return -EAGAIN;
 	}
 
-	ipip6_fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "sit0", 
+	ipip6_fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "sit0",
 					   ipip6_tunnel_setup);
 	if (!ipip6_fb_tunnel_dev) {
 		err = -ENOMEM;
@@ -854,3 +855,4 @@ int __init sit_init(void)
 module_init(sit_init);
 module_exit(sit_cleanup);
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("sit0");