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Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index cee640281e02..6cb7cff22db9 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1981,7 +1981,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
u32 itag = 0;
struct rtable *rth;
struct flowi4 fl4;
- bool do_cache;
+ bool do_cache = true;
/* IP on this device is disabled. */
@@ -2058,6 +2058,9 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
if (res->type == RTN_BROADCAST) {
if (IN_DEV_BFORWARD(in_dev))
goto make_route;
+ /* not do cache if bc_forwarding is enabled */
+ if (IPV4_DEVCONF_ALL(net, BC_FORWARDING))
+ do_cache = false;
goto brd_input;
}
@@ -2095,18 +2098,15 @@ brd_input:
RT_CACHE_STAT_INC(in_brd);
local_input:
- do_cache = false;
- if (res->fi) {
- if (!itag) {
- struct fib_nh_common *nhc = FIB_RES_NHC(*res);
+ do_cache &= res->fi && !itag;
+ if (do_cache) {
+ struct fib_nh_common *nhc = FIB_RES_NHC(*res);
- rth = rcu_dereference(nhc->nhc_rth_input);
- if (rt_cache_valid(rth)) {
- skb_dst_set_noref(skb, &rth->dst);
- err = 0;
- goto out;
- }
- do_cache = true;
+ rth = rcu_dereference(nhc->nhc_rth_input);
+ if (rt_cache_valid(rth)) {
+ skb_dst_set_noref(skb, &rth->dst);
+ err = 0;
+ goto out;
}
}