[PATCH net-next 6/9] sit: implement ipip6_get_iflink()
From: Eric Dumazet <edumazet@google.com>
Date: 2026-09-07 07:58:58
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
SIT currently uses ip_tunnel_get_iflink() which reads tunnel->parms.link. In order to decouple SIT parameter handling from ip_tunnel, implement its own ndo_get_iflink callback. Signed-off-by: Eric Dumazet <edumazet@google.com> --- net/ipv6/sit.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 7cabcd3afbc4f06d9a08374e6d8df2fb1bfb9676..35c6695909014a2c335f1de7afb48f07b7c91c39 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c@@ -1444,12 +1444,19 @@ ipip6_tunnel_siocdevprivate(struct net_device *dev, struct ifreq *ifr, } } +static int ipip6_get_iflink(const struct net_device *dev) +{ + struct ip_tunnel *tunnel = netdev_priv(dev); + + return READ_ONCE(tunnel->parms.link); +} + static const struct net_device_ops ipip6_netdev_ops = { .ndo_init = ipip6_tunnel_init, .ndo_uninit = ipip6_tunnel_uninit, .ndo_start_xmit = sit_tunnel_xmit, .ndo_siocdevprivate = ipip6_tunnel_siocdevprivate, - .ndo_get_iflink = ip_tunnel_get_iflink, + .ndo_get_iflink = ipip6_get_iflink, .ndo_tunnel_ctl = ipip6_tunnel_ctl, };
--
2.55.0.979.g7e5102b832-goog