[IPV6]: Make ndisc_dst_alloc() common for later use.

For later use, this patch is renaming ndisc_dst_alloc()
(and related function/structures) to icmp6_dst_alloc()
(and so on).  This patch also removing unused function-
pointer argument for it.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

3 files changed, 15 insertions, 16 deletions

diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index bab72b6f1444..c70fd38b54b7 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1464,7 +1464,7 @@ void fib6_run_gc(unsigned long dummy)
         }
         gc_args.more = 0;
 
-        ndisc_dst_gc(&gc_args.more);
+        icmp6_dst_gc(&gc_args.more);
         fib6_clean_all(fib6_age, 0, NULL);
 
         if (gc_args.more)
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 8db5f4a419aa..eb322959a3e1 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -462,7 +462,7 @@ static void __ndisc_send(struct net_device *dev,
         icmpv6_flow_init(ndisc_socket->sk, &fl, type,
                          saddr, daddr, dev->ifindex);
 
-        dst = ndisc_dst_alloc(dev, neigh, daddr, ip6_output);
+        dst = icmp6_dst_alloc(dev, neigh, daddr);
         if (!dst)
                 return;
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6abe7da45ef7..cd717450fb10 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -904,13 +904,12 @@ static inline unsigned int ipv6_advmss(unsigned int mtu)
         return mtu;
 }
 
-static struct dst_entry *ndisc_dst_gc_list;
-static DEFINE_SPINLOCK(ndisc_lock);
+static struct dst_entry *icmp6_dst_gc_list;
+static DEFINE_SPINLOCK(icmp6_dst_lock);
 
-struct dst_entry *ndisc_dst_alloc(struct net_device *dev,
+struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
                                   struct neighbour *neigh,
-                                  struct in6_addr *addr,
-                                  int (*output)(struct sk_buff *))
+                                  struct in6_addr *addr)
 {
         struct rt6_info *rt;
         struct inet6_dev *idev = in6_dev_get(dev);
@@ -937,7 +936,7 @@ struct dst_entry *ndisc_dst_alloc(struct net_device *dev,
         rt->u.dst.metrics[RTAX_HOPLIMIT-1] = 255;
         rt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(rt->rt6i_dev);
         rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&rt->u.dst));
-        rt->u.dst.output  = output;
+        rt->u.dst.output  = ip6_output;
 
 #if 0   /* there's no chance to use these for ndisc */
         rt->u.dst.flags   = ipv6_addr_type(addr) & IPV6_ADDR_UNICAST
@@ -947,10 +946,10 @@ struct dst_entry *ndisc_dst_alloc(struct net_device *dev,
         rt->rt6i_dst.plen = 128;
 #endif
 
-        spin_lock_bh(&ndisc_lock);
-        rt->u.dst.next = ndisc_dst_gc_list;
-        ndisc_dst_gc_list = &rt->u.dst;
-        spin_unlock_bh(&ndisc_lock);
+        spin_lock_bh(&icmp6_dst_lock);
+        rt->u.dst.next = icmp6_dst_gc_list;
+        icmp6_dst_gc_list = &rt->u.dst;
+        spin_unlock_bh(&icmp6_dst_lock);
 
         fib6_force_start_gc();
 
@@ -958,7 +957,7 @@ out:
         return &rt->u.dst;
 }
 
-int ndisc_dst_gc(int *more)
+int icmp6_dst_gc(int *more)
 {
         struct dst_entry *dst, *next, **pprev;
         int freed;
@@ -966,8 +965,8 @@ int ndisc_dst_gc(int *more)
         next = NULL;
         freed = 0;
 
-        spin_lock_bh(&ndisc_lock);
-        pprev = &ndisc_dst_gc_list;
+        spin_lock_bh(&icmp6_dst_lock);
+        pprev = &icmp6_dst_gc_list;
 
         while ((dst = *pprev) != NULL) {
                 if (!atomic_read(&dst->__refcnt)) {
@@ -980,7 +979,7 @@ int ndisc_dst_gc(int *more)
                 }
         }
 
-        spin_unlock_bh(&ndisc_lock);
+        spin_unlock_bh(&icmp6_dst_lock);
 
         return freed;
 }