ipv4: Don't store a rule pointer in fib_result.

We only use it to fetch the rule's tclassid, so just store the
tclassid there instead.

This also decreases the size of fib_result by a full 8 bytes on
64-bit.  On 32-bits it's a wash.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 4 deletions

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 9319bf1f8354..aad21819316d 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1735,7 +1735,7 @@ static void rt_set_nexthop(struct rtable *rt, const struct flowi4 *fl4,
 
 #ifdef CONFIG_IP_ROUTE_CLASSID
 #ifdef CONFIG_IP_MULTIPLE_TABLES
-        set_class_tag(rt, fib_rules_tclass(res));
+        set_class_tag(rt, res->tclassid);
 #endif
         set_class_tag(rt, itag);
 #endif
@@ -2353,11 +2353,9 @@ static struct rtable *ip_route_output_slow(struct net *net, struct flowi4 *fl4)
         __be32 orig_saddr;
         int orig_oif;
 
+        res.tclassid    = 0;
         res.fi          = NULL;
         res.table       = NULL;
-#ifdef CONFIG_IP_MULTIPLE_TABLES
-        res.r           = NULL;
-#endif
 
         orig_daddr = fl4->daddr;
         orig_saddr = fl4->saddr;