From: Ido Schimmel <idosch@nvidia.com>
Date: Thu, 29 Aug 2024 06:54:49 +0000 (+0300)
Subject: ipv4: Unmask upper DSCP bits in ip_route_output_key_hash()
X-Git-Tag: v6.12-rc1~232^2~133^2~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a63cef46adcbedd4f4ea7401773a310edca53131;p=thirdparty%2Fkernel%2Flinux.git

ipv4: Unmask upper DSCP bits in ip_route_output_key_hash()

Unmask the upper DSCP bits so that in the future output routes could be
looked up according to the full DSCP value.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index e4b45aa184701..5a77dc6d9c720 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2618,7 +2618,7 @@ struct rtable *ip_route_output_key_hash(struct net *net, struct flowi4 *fl4,
 	struct rtable *rth;
 
 	fl4->flowi4_iif = LOOPBACK_IFINDEX;
-	fl4->flowi4_tos &= IPTOS_RT_MASK;
+	fl4->flowi4_tos &= INET_DSCP_MASK;
 
 	rcu_read_lock();
 	rth = ip_route_output_key_hash_rcu(net, fl4, &res, skb);