netdev - [PATCHv2 net-next] dn_route: set rt neigh to blackhole_netdev instead of loopback

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Message-Id: <0cdf10e5a4af509024f08644919121fb71645bc2.1652751029.git.lucien.xin@gmail.com>
Date:   Mon, 16 May 2022 21:30:29 -0400
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>
Cc:     davem@...emloft.net, kuba@...nel.org,
        Eric Dumazet <edumazet@...gle.com>
Subject: [PATCHv2 net-next] dn_route: set rt neigh to blackhole_netdev instead of loopback_dev in ifdown

Like other places in ipv4/6 dst ifdown, change to use blackhole_netdev
instead of pernet loopback_dev in dn dst ifdown.

v1->v2:
  - remove the improper fixes tag as Eric noticed.
  - aim at net-next.

Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 net/decnet/dn_route.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index d1d78a463a06..552a53f1d5d0 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -159,7 +159,7 @@ static void dn_dst_ifdown(struct dst_entry *dst, struct net_device *dev, int how
 		struct neighbour *n = rt->n;
 
 		if (n && n->dev == dev) {
-			n->dev = dev_net(dev)->loopback_dev;
+			n->dev = blackhole_netdev;
 			dev_hold(n->dev);
 			dev_put(dev);
 		}
-- 
2.31.1