diff options
| author |   Christoph Hellwig <hch@lst.de> | 2020-05-19 15:03:14 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-05-19 15:45:12 -0700 |
| commit | c7e3670516042bfd8147151d9008b5874a6eb73e (patch) | |
| tree | 83ef88c2305ed56ec5985b0e1b626d42723fb54a /net/ipv4/ipmr.c | |
| parent | net: add a new ndo_tunnel_ioctl method (diff) | |
| download | wireguard-linux-c7e3670516042bfd8147151d9008b5874a6eb73e.tar.xz wireguard-linux-c7e3670516042bfd8147151d9008b5874a6eb73e.zip | |
impr: use ->ndo_tunnel_ctl in ipmr_new_tunnel
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/ipv4/ipmr.c')
| -rw-r--r-- | net/ipv4/ipmr.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index cd1a3260a99a..d3e9b80a57de 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -442,8 +442,6 @@ static struct net_device *ipmr_new_tunnel(struct net *net, struct vifctl *v) { struct net_device *tunnel_dev, *new_dev; struct ip_tunnel_parm p = { }; - mm_segment_t oldfs = get_fs(); - struct ifreq ifr; int err; tunnel_dev = __dev_get_by_name(net, "tunl0"); @@ -456,15 +454,11 @@ static struct net_device *ipmr_new_tunnel(struct net *net, struct vifctl *v) p.iph.ihl = 5; p.iph.protocol = IPPROTO_IPIP; sprintf(p.name, "dvmrp%d", v->vifc_vifi); - ifr.ifr_ifru.ifru_data = (__force void __user *)&p; - if (!tunnel_dev->netdev_ops->ndo_do_ioctl) + if (!tunnel_dev->netdev_ops->ndo_tunnel_ctl) goto out; - - set_fs(KERNEL_DS); - err = tunnel_dev->netdev_ops->ndo_do_ioctl(tunnel_dev, &ifr, + err = tunnel_dev->netdev_ops->ndo_tunnel_ctl(tunnel_dev, &p, SIOCADDTUNNEL); - set_fs(oldfs); if (err) goto out; @@ -481,10 +475,8 @@ static struct net_device *ipmr_new_tunnel(struct net *net, struct vifctl *v) err = dev_set_allmulti(new_dev, 1); if (err) { dev_close(new_dev); - set_fs(KERNEL_DS); - tunnel_dev->netdev_ops->ndo_do_ioctl(tunnel_dev, &ifr, + tunnel_dev->netdev_ops->ndo_tunnel_ctl(tunnel_dev, &p, SIOCDELTUNNEL); - set_fs(oldfs); dev_put(new_dev); new_dev = ERR_PTR(err); } |