ipv6: remove parameter rt from fib6_prune_clones()

the parameter rt will be assigned to c.arg in function fib6_clean_tree(),
but function fib6_prune_clone() doesn't use c.arg, so we can remove it
safely.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 7 deletions

diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 34e0ded5c14b..6fefd44abbf5 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -71,8 +71,7 @@ static DEFINE_RWLOCK(fib6_walker_lock);
 #define FWS_INIT FWS_L
 #endif
 
-static void fib6_prune_clones(struct net *net, struct fib6_node *fn,
-                              struct rt6_info *rt);
+static void fib6_prune_clones(struct net *net, struct fib6_node *fn);
 static struct rt6_info *fib6_find_prefix(struct net *net, struct fib6_node *fn);
 static struct fib6_node *fib6_repair_tree(struct net *net, struct fib6_node *fn);
 static int fib6_walk(struct fib6_walker_t *w);
@@ -941,7 +940,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info,
         if (!err) {
                 fib6_start_gc(info->nl_net, rt);
                 if (!(rt->rt6i_flags & RTF_CACHE))
-                        fib6_prune_clones(info->nl_net, pn, rt);
+                        fib6_prune_clones(info->nl_net, pn);
         }
 
 out:
@@ -1375,7 +1374,7 @@ int fib6_del(struct rt6_info *rt, struct nl_info *info)
                         pn = pn->parent;
                 }
 #endif
-                fib6_prune_clones(info->nl_net, pn, rt);
+                fib6_prune_clones(info->nl_net, pn);
         }
 
         /*
@@ -1600,10 +1599,9 @@ static int fib6_prune_clone(struct rt6_info *rt, void *arg)
         return 0;
 }
 
-static void fib6_prune_clones(struct net *net, struct fib6_node *fn,
-                              struct rt6_info *rt)
+static void fib6_prune_clones(struct net *net, struct fib6_node *fn)
 {
-        fib6_clean_tree(net, fn, fib6_prune_clone, 1, rt);
+        fib6_clean_tree(net, fn, fib6_prune_clone, 1, NULL);
 }
 
 /*