ipv4: Pass fib_nh_common to rt_cache_route
Now that the cached routes are in fib_nh_common, pass it to
rt_cache_route and simplify its callers. For rt_set_nexthop,
the tclassid becomes the last user of fib_nh so move the
container_of under the #ifdef CONFIG_IP_ROUTE_CLASSID.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 662ac9b..9b50d04 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1470,9 +1470,8 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe,
return ret;
}
-static bool rt_cache_route(struct fib_nh *nh, struct rtable *rt)
+static bool rt_cache_route(struct fib_nh_common *nhc, struct rtable *rt)
{
- struct fib_nh_common *nhc = &nh->nh_common;
struct rtable *orig, *prev, **p;
bool ret = true;
@@ -1576,7 +1575,6 @@ static void rt_set_nexthop(struct rtable *rt, __be32 daddr,
if (fi) {
struct fib_nh_common *nhc = FIB_RES_NHC(*res);
- struct fib_nh *nh;
if (nhc->nhc_gw_family && nhc->nhc_scope == RT_SCOPE_LINK) {
rt->rt_gw_family = nhc->nhc_gw_family;
@@ -1589,15 +1587,19 @@ static void rt_set_nexthop(struct rtable *rt, __be32 daddr,
ip_dst_init_metrics(&rt->dst, fi->fib_metrics);
- nh = container_of(nhc, struct fib_nh, nh_common);
#ifdef CONFIG_IP_ROUTE_CLASSID
- rt->dst.tclassid = nh->nh_tclassid;
+ {
+ struct fib_nh *nh;
+
+ nh = container_of(nhc, struct fib_nh, nh_common);
+ rt->dst.tclassid = nh->nh_tclassid;
+ }
#endif
- rt->dst.lwtstate = lwtstate_get(nh->fib_nh_lws);
+ rt->dst.lwtstate = lwtstate_get(nhc->nhc_lwtstate);
if (unlikely(fnhe))
cached = rt_bind_exception(rt, fnhe, daddr, do_cache);
else if (do_cache)
- cached = rt_cache_route(nh, rt);
+ cached = rt_cache_route(nhc, rt);
if (unlikely(!cached)) {
/* Routes we intend to cache in nexthop exception or
* FIB nexthop have the DST_NOCACHE bit clear.
@@ -2139,7 +2141,6 @@ out: return err;
if (do_cache) {
struct fib_nh_common *nhc = FIB_RES_NHC(*res);
- struct fib_nh *nh;
rth->dst.lwtstate = lwtstate_get(nhc->nhc_lwtstate);
if (lwtunnel_input_redirect(rth->dst.lwtstate)) {
@@ -2148,8 +2149,7 @@ out: return err;
rth->dst.input = lwtunnel_input;
}
- nh = container_of(nhc, struct fib_nh, nh_common);
- if (unlikely(!rt_cache_route(nh, rth)))
+ if (unlikely(!rt_cache_route(nhc, rth)))
rt_add_uncached_list(rth);
}
skb_dst_set(skb, &rth->dst);