[PATCH 08/10] ipconfig: use dev_set_mtu()

[Al Viro]

From: Al Viro <v...@zeniv.linux.org.uk>

Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
---
 net/ipv4/ipconfig.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 5f396afaa08d..f75802ad960f 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -329,17 +329,6 @@ set_sockaddr(struct sockaddr_in *sin, __be32 addr, __be16 
port)
        sin->sin_port = port;
 }
 
-static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
-{
-       int res;
-
-       mm_segment_t oldfs = get_fs();
-       set_fs(get_ds());
-       res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
-       set_fs(oldfs);
-       return res;
-}
-
 /*
  *     Set up interface addresses and routes.
  */
@@ -375,11 +364,11 @@ static int __init ic_setup_if(void)
         * out, we'll try to muddle along.
         */
        if (ic_dev_mtu != 0) {
-               strcpy(ir.ifr_name, ic_dev->dev->name);
-               ir.ifr_mtu = ic_dev_mtu;
-               if ((err = ic_dev_ioctl(SIOCSIFMTU, &ir)) < 0)
+               rtnl_lock();
+               if ((err = dev_set_mtu(ic_dev->dev, ic_dev_mtu)) < 0)
                        pr_err("IP-Config: Unable to set interface mtu to %d 
(%d)\n",
                               ic_dev_mtu, err);
+               rtnl_unlock();
        }
        return 0;
 }
-- 
2.11.0