From: Stephen Hemminger <shemminger@vyatta.com>
Date: Thu, 20 Nov 2008 05:52:05 +0000 (-0800)
Subject: ip: convert to net_device_ops for ioctl
X-Git-Tag: v2.6.29-rc1~581^2~669
X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=commitdiff_plain;h=5bc3eb7e2f0026f246d939851109df99e8e9f64a

ip: convert to net_device_ops for ioctl

Convert to net_device_ops function table pointer for ioctl.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 05ed336..ed372f3 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -124,8 +124,8 @@ static void ipmr_del_tunnel(struct net_device *dev, struct vifctl *v)
 
 	dev = __dev_get_by_name(&init_net, "tunl0");
 	if (dev) {
+		const struct net_device_ops *ops = dev->netdev_ops;
 		struct ifreq ifr;
-		mm_segment_t	oldfs;
 		struct ip_tunnel_parm p;
 
 		memset(&p, 0, sizeof(p));
@@ -137,9 +137,13 @@ static void ipmr_del_tunnel(struct net_device *dev, struct vifctl *v)
 		sprintf(p.name, "dvmrp%d", v->vifc_vifi);
 		ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
 
-		oldfs = get_fs(); set_fs(KERNEL_DS);
-		dev->do_ioctl(dev, &ifr, SIOCDELTUNNEL);
-		set_fs(oldfs);
+		if (ops->ndo_do_ioctl) {
+			mm_segment_t oldfs = get_fs();
+
+			set_fs(KERNEL_DS);
+			ops->ndo_do_ioctl(dev, &ifr, SIOCDELTUNNEL);
+			set_fs(oldfs);
+		}
 	}
 }
 
@@ -151,9 +155,9 @@ struct net_device *ipmr_new_tunnel(struct vifctl *v)
 	dev = __dev_get_by_name(&init_net, "tunl0");
 
 	if (dev) {
+		const struct net_device_ops *ops = dev->netdev_ops;
 		int err;
 		struct ifreq ifr;
-		mm_segment_t	oldfs;
 		struct ip_tunnel_parm p;
 		struct in_device  *in_dev;
 
@@ -166,9 +170,14 @@ struct net_device *ipmr_new_tunnel(struct vifctl *v)
 		sprintf(p.name, "dvmrp%d", v->vifc_vifi);
 		ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
 
-		oldfs = get_fs(); set_fs(KERNEL_DS);
-		err = dev->do_ioctl(dev, &ifr, SIOCADDTUNNEL);
-		set_fs(oldfs);
+		if (ops->ndo_do_ioctl) {
+			mm_segment_t oldfs = get_fs();
+
+			set_fs(KERNEL_DS);
+			err = ops->ndo_do_ioctl(dev, &ifr, SIOCADDTUNNEL);
+			set_fs(oldfs);
+		} else
+			err = -EOPNOTSUPP;
 
 		dev = NULL;
 
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 0e41f1b..e92ad84 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2031,8 +2031,8 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
 
 #if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
 	if (dev->type == ARPHRD_SIT) {
+		const struct net_device_ops *ops = dev->netdev_ops;
 		struct ifreq ifr;
-		mm_segment_t	oldfs;
 		struct ip_tunnel_parm p;
 
 		err = -EADDRNOTAVAIL;
@@ -2048,9 +2048,14 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
 		p.iph.ttl = 64;
 		ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
 
-		oldfs = get_fs(); set_fs(KERNEL_DS);
-		err = dev->do_ioctl(dev, &ifr, SIOCADDTUNNEL);
-		set_fs(oldfs);
+		if (ops->ndo_do_ioctl) {
+			mm_segment_t oldfs = get_fs();
+
+			set_fs(KERNEL_DS);
+			err = ops->ndo_do_ioctl(dev, &ifr, SIOCADDTUNNEL);
+			set_fs(oldfs);
+		} else
+			err = -EOPNOTSUPP;
 
 		if (err == 0) {
 			err = -ENOBUFS;