vrf_rt6_release() and vrf_rtable_release() changes dst->dev
Instead of
dev_hold(ndev);
dev_put(odev);
We should use
dev_replace_track(odev, ndev, &dst->dev_tracker, GFP_KERNEL);
If we do not transfer dst->dev_tracker to the new device,
we will get warnings from ref_tracker_dir_exit() when odev
is finally dismantled.
Fixes:
9038c320001d ("net: dst: add net device refcount tracking to dst_entry")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211207055603.1926372-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
*/
if (rt6) {
dst = &rt6->dst;
- dev_put(dst->dev);
+ dev_replace_track(dst->dev, net->loopback_dev,
+ &dst->dev_tracker, GFP_KERNEL);
dst->dev = net->loopback_dev;
- dev_hold(dst->dev);
dst_release(dst);
}
}
*/
if (rth) {
dst = &rth->dst;
- dev_put(dst->dev);
+ dev_replace_track(dst->dev, net->loopback_dev,
+ &dst->dev_tracker, GFP_KERNEL);
dst->dev = net->loopback_dev;
- dev_hold(dst->dev);
dst_release(dst);
}
}