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| author |   Guillaume Nault <g.nault@alphalink.fr> | 2017-04-11 13:12:13 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-04-11 13:48:09 -0400 |
| commit | af87ae465abdc070de0dc35d6c6a9e7a8cd82987 (patch) | |
| tree | f2ad08326ed460dda75cd79019d781a0f9dd1441 /net/l2tp/l2tp_netlink.c | |
| parent | Merge branch 'net-remove-pci_enable_msix' (diff) | |
| download | linux-dev-af87ae465abdc070de0dc35d6c6a9e7a8cd82987.tar.xz linux-dev-af87ae465abdc070de0dc35d6c6a9e7a8cd82987.zip | |
l2tp: remove useless duplicate session detection in l2tp_netlink
There's no point in checking for duplicate sessions at the beginning of
l2tp_nl_cmd_session_create(); the ->session_create() callbacks already
return -EEXIST when the session already exists.
Furthermore, even if l2tp_session_find() returns NULL, a new session
might be created right after the test. So relying on ->session_create()
to avoid duplicate session is the only sane behaviour.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/l2tp/l2tp_netlink.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c index 7e3e669baac4..12cfcd0ca807 100644 --- a/net/l2tp/l2tp_netlink.c +++ b/net/l2tp/l2tp_netlink.c @@ -521,11 +521,6 @@ static int l2tp_nl_cmd_session_create(struct sk_buff *skb, struct genl_info *inf goto out; } session_id = nla_get_u32(info->attrs[L2TP_ATTR_SESSION_ID]); - session = l2tp_session_find(net, tunnel, session_id); - if (session) { - ret = -EEXIST; - goto out; - } if (!info->attrs[L2TP_ATTR_PEER_SESSION_ID]) { ret = -EINVAL; |