1 files changed, 4 insertions, 0 deletions

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index bf9541648b96..0286d78c589c 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -422,6 +422,10 @@ static struct ip_tunnel *ipgre_tunnel_locate(struct net *net,
         if (register_netdevice(dev) < 0)
                 goto failed_free;
 
+        /* Can use a lockless transmit, unless we generate output sequences */
+        if (!(nt->parms.o_flags & GRE_SEQ))
+                dev->features |= NETIF_F_LLTX;
+
         dev_hold(dev);
         ipgre_tunnel_link(ign, nt);
         return nt;