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authorChristoph Hellwig <hch@lst.de>2020-05-19 15:03:19 +0200
committerDavid S. Miller <davem@davemloft.net>2020-05-19 15:45:12 -0700
commit8e3db0bbb29aa8d135341c5327bae738e93932a7 (patch)
tree1148ec17b76494a9b1aeda934468477c7c43ba48 /net/ipv6/addrconf.c
parentipv6: streamline addrconf_set_dstaddr (diff)
downloadlinux-dev-8e3db0bbb29aa8d135341c5327bae738e93932a7.tar.xz
linux-dev-8e3db0bbb29aa8d135341c5327bae738e93932a7.zip
ipv6: use ->ndo_tunnel_ctl in addrconf_set_dstaddr
Use the new ->ndo_tunnel_ctl instead of overriding the address limit and using ->ndo_do_ioctl just to do a pointless user copy. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c827edf87741..09cfbf5dd7ce 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2787,8 +2787,6 @@ static int addrconf_set_sit_dstaddr(struct net *net, struct net_device *dev,
struct in6_ifreq *ireq)
{
struct ip_tunnel_parm p = { };
- mm_segment_t oldfs = get_fs();
- struct ifreq ifr;
int err;
if (!(ipv6_addr_type(&ireq->ifr6_addr) & IPV6_ADDR_COMPATv4))
@@ -2799,13 +2797,10 @@ static int addrconf_set_sit_dstaddr(struct net *net, struct net_device *dev,
p.iph.ihl = 5;
p.iph.protocol = IPPROTO_IPV6;
p.iph.ttl = 64;
- ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
- if (!dev->netdev_ops->ndo_do_ioctl)
+ if (!dev->netdev_ops->ndo_tunnel_ctl)
return -EOPNOTSUPP;
- set_fs(KERNEL_DS);
- err = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, SIOCADDTUNNEL);
- set_fs(oldfs);
+ err = dev->netdev_ops->ndo_tunnel_ctl(dev, &p, SIOCADDTUNNEL);
if (err)
return err;