Commit c2e8471d authored by Roopa Prabhu's avatar Roopa Prabhu Committed by David S. Miller

mpls: fix clearing of dead nh_flags on link up

recent fixes to use WRITE_ONCE for nh_flags on link up,
accidently ended up leaving the deadflags on a nh. This patch
fixes the WRITE_ONCE to use freshly evaluated nh_flags.

Fixes: 39eb8cd1 ("net: mpls: rt_nhn_alive and nh_flags should be accessed using READ_ONCE")
Reported-by: default avatarSatish Ashok <>
Signed-off-by: default avatarRoopa Prabhu <>
Acked-by: default avatarDavid Ahern <>
Signed-off-by: default avatarDavid S. Miller <>
parent e8f4ae85
......@@ -1418,7 +1418,7 @@ static void mpls_ifup(struct net_device *dev, unsigned int flags)
nh_flags &= ~flags;
WRITE_ONCE(nh->nh_flags, flags);
WRITE_ONCE(nh->nh_flags, nh_flags);
} endfor_nexthops(rt);
WRITE_ONCE(rt->rt_nhn_alive, alive);
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment