diff options
| author | MINOURA Makoto / 箕浦 真 <minoura@valinux.co.jp> | 2016-02-25 14:20:48 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-02-26 15:04:02 -0500 |
| commit | 472681d57a5dde7c6d16b05469be57f1c4ed9d99 (patch) | |
| tree | 2163ac3883c3c89c2a77abc356139edac189d966 /drivers/net/vxlan.c | |
| parent | 4c0b6eaf373a5323f03a3a20c42fc435715b073d (diff) | |
| download | lwn-472681d57a5dde7c6d16b05469be57f1c4ed9d99.tar.gz lwn-472681d57a5dde7c6d16b05469be57f1c4ed9d99.zip | |
net: ndo_fdb_dump should report -EMSGSIZE to rtnl_fdb_dump.
When the send skbuff reaches the end, nlmsg_put and friends returns
-EMSGSIZE but it is silently thrown away in ndo_fdb_dump. It is called
within a for_each_netdev loop and the first fdb entry of a following
netdev could fit in the remaining skbuff. This breaks the mechanism
of cb->args[0] and idx to keep track of the entries that are already
dumped, which results missing entries in bridge fdb show command.
Signed-off-by: Minoura Makoto <minoura@valinux.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index e6944b29588e..b601139a145a 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -931,8 +931,10 @@ static int vxlan_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, cb->nlh->nlmsg_seq, RTM_NEWNEIGH, NLM_F_MULTI, rd); - if (err < 0) + if (err < 0) { + cb->args[1] = err; goto out; + } skip: ++idx; } |