tree dbfe0b9499abc8c0f658ee1c92dbf4d9dd89de6f
parent aa44323e1c4d2e896f5f271c202a13f4c45e5b40
author Nikolay Aleksandrov <nikolay@nvidia.com> 1643202625 +0200
committer David S. Miller <davem@davemloft.net> 1643291297 +0000

net: bridge: vlan: fix single net device option dumping

When dumping vlan options for a single net device we send the same
entries infinitely because user-space expects a 0 return at the end but
we keep returning skb->len and restarting the dump on retry. Fix it by
returning the value from br_vlan_dump_dev() if it completed or there was
an error. The only case that must return skb->len is when the dump was
incomplete and needs to continue (-EMSGSIZE).

Reported-by: Benjamin Poirier <bpoirier@nvidia.com>
Fixes: 8dcea187088b ("net: bridge: vlan: add rtm definitions and dump support")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>