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l2tp: remove useless device duplication test in l2tp_eth_create()

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There's no need to verify that cfg->ifname is unique at this point.
register_netdev() will return -EEXIST if asked to create a device with
a name that's alrealy in use.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Guillaume Nault 2017-04-26 11:54:47 +02:00 • committed by David S. Miller
parent 0575c86b5d
commit 1514dc857f
1 changed files with 0 additions and 6 deletions
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6
net/l2tp/l2tp_eth.c
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@ -280,12 +280,6 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p
}
if (cfg->ifname) {
dev = dev_get_by_name(net, cfg->ifname);
if (dev) {
dev_put(dev);
rc = -EEXIST;
goto out;
}
strlcpy(name, cfg->ifname, IFNAMSIZ);
name_assign_type = NET_NAME_USER;
} else {