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xfrm interface: ifname may be wrong in logs

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[ Upstream commit e0aaa332e6a97dae57ad59cdb19e21f83c3d081c ]

The ifname is copied when the interface is created, but is never updated
later. In fact, this property is used only in one error message, where the
netdevice pointer is available, thus let's use it.

Fixes: f203b76d78 ("xfrm: Add virtual xfrm interfaces")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nicolas Dichtel 2019-07-15 12:00:21 +02:00 committed by Greg Kroah-Hartman
parent 8ce259e5b0
commit 6f8fa5c32d
2 changed files with 1 additions and 10 deletions
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1
include/net/xfrm.h
View file

@ -1054,7 +1054,6 @@ static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)
void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev);
struct xfrm_if_parms {
char name[IFNAMSIZ]; /* name of XFRM device */
int link; /* ifindex of underlying L2 interface */
u32 if_id; /* interface identifyer */
};

10
net/xfrm/xfrm_interface.c
View file

@ -145,8 +145,6 @@ static int xfrmi_create(struct net_device *dev)
if (err < 0)
goto out;
strcpy(xi->p.name, dev->name);
dev_hold(dev);
xfrmi_link(xfrmn, xi);
@ -293,7 +291,7 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
if (tdev == dev) {
stats->collisions++;
net_warn_ratelimited("%s: Local routing loop detected!\n",
xi->p.name);
dev->name);
goto tx_err_dst_release;
}
@ -648,12 +646,6 @@ static int xfrmi_newlink(struct net *src_net, struct net_device *dev,
int err;
xfrmi_netlink_parms(data, &p);
if (!tb[IFLA_IFNAME])
return -EINVAL;
nla_strlcpy(p.name, tb[IFLA_IFNAME], IFNAMSIZ);
xi = xfrmi_locate(net, &p);
if (xi)
return -EEXIST;