diff mbox series

[net-next,08/12] ipv4: Unmask upper DSCP bits in input route lookup

Message ID 20240821125251.1571445-9-idosch@nvidia.com
State Handled Elsewhere, archived
Headers show
Series Unmask upper DSCP bits - part 1 | expand

Commit Message

Ido Schimmel Aug. 21, 2024, 12:52 p.m. UTC 
Unmask the upper DSCP bits in input route lookup so that in the future
the lookup could be performed according to the full DSCP value.

No functional changes intended since the upper DSCP bits are masked when
comparing against the TOS selectors in FIB rules and routes.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 net/ipv4/route.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Guillaume Nault Aug. 21, 2024, 4:28 p.m. UTC | #1 
On Wed, Aug 21, 2024 at 03:52:47PM +0300, Ido Schimmel wrote:
> Unmask the upper DSCP bits in input route lookup so that in the future
> the lookup could be performed according to the full DSCP value.

Reviewed-by: Guillaume Nault <gnault@redhat.com>
diff mbox series

Patch

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 9b6528b7b562..73bb61162445 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2470,7 +2470,7 @@  int ip_route_input_noref(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	struct fib_result res;
 	int err;
 
-	tos &= IPTOS_RT_MASK;
+	tos &= INET_DSCP_MASK;
 	rcu_read_lock();
 	err = ip_route_input_rcu(skb, daddr, saddr, tos, dev, &res);
 	rcu_read_unlock();