[PATCH] [sparse] ip_rt_ioctl argument is user pointer

[Stephen Hemminger <shemminger@xxxxxxxx>]

The function ip_rt_ioctl expects a pointer to a user route structure, so define
it that way and cast as appropriate.

diff -Nru a/include/net/route.h b/include/net/route.h
--- a/include/net/route.h       2004-06-22 15:57:28 -07:00
+++ b/include/net/route.h       2004-06-22 15:57:28 -07:00
@@ -129,7 +129,7 @@
 
 extern unsigned                inet_addr_type(u32 addr);
 extern void            ip_rt_multicast_event(struct in_device *);
-extern int             ip_rt_ioctl(unsigned int cmd, void *arg);
+extern int             ip_rt_ioctl(unsigned int cmd, void __user *arg);
 extern void            ip_rt_get_source(u8 *src, struct rtable *rt);
 extern int             ip_rt_dump(struct sk_buff *skb,  struct 
netlink_callback *cb);
 
diff -Nru a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
--- a/net/ipv4/af_inet.c        2004-06-22 15:57:28 -07:00
+++ b/net/ipv4/af_inet.c        2004-06-22 15:57:28 -07:00
@@ -848,7 +848,7 @@
                case SIOCADDRT:
                case SIOCDELRT:
                case SIOCRTMSG:
-                       err = ip_rt_ioctl(cmd, (void *)arg);
+                       err = ip_rt_ioctl(cmd, (void __user *)arg);
                        break;
                case SIOCDARP:
                case SIOCGARP:
diff -Nru a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
--- a/net/ipv4/fib_frontend.c   2004-06-22 15:57:28 -07:00
+++ b/net/ipv4/fib_frontend.c   2004-06-22 15:57:28 -07:00
@@ -235,7 +235,7 @@
  *     Handle IP routing ioctl calls. These are used to manipulate the routing 
tables
  */
  
-int ip_rt_ioctl(unsigned int cmd, void *arg)
+int ip_rt_ioctl(unsigned int cmd, void __user *arg)
 {
        int err;
        struct kern_rta rta;
diff -Nru a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
--- a/net/ipv4/ipconfig.c       2004-06-22 15:57:28 -07:00
+++ b/net/ipv4/ipconfig.c       2004-06-22 15:57:28 -07:00
@@ -272,7 +272,7 @@
 
        mm_segment_t oldfs = get_fs();
        set_fs(get_ds());
-       res = devinet_ioctl(cmd, arg);
+       res = devinet_ioctl(cmd, (struct ifreq __user *) arg);
        set_fs(oldfs);
        return res;
 }
@@ -283,7 +283,7 @@
 
        mm_segment_t oldfs = get_fs();
        set_fs(get_ds());
-       res = ip_rt_ioctl(cmd, arg);
+       res = ip_rt_ioctl(cmd, (void __user *) arg);
        set_fs(oldfs);
        return res;
 }