[NET]: Add a dev_ioctl() fallback to sock_ioctl()
Currently all network protocols need to call dev_ioctl as the default
fallback in their ioctl implementations. This patch adds a fallback
to dev_ioctl to sock_ioctl if the protocol returned -ENOIOCTLCMD.
This way all the procotol ioctl handlers can be simplified and we don't
need to export dev_ioctl.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 296f186..a5144e4 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1763,7 +1763,7 @@
*/
static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
- int rc = -EINVAL;
+ int rc = -ENOIOCTLCMD;
struct sock *sk = sock->sk;
void __user *argp = (void __user *)arg;
@@ -1813,23 +1813,6 @@
rc = atif_ioctl(cmd, argp);
rtnl_unlock();
break;
- /* Physical layer ioctl calls */
- case SIOCSIFLINK:
- case SIOCGIFHWADDR:
- case SIOCSIFHWADDR:
- case SIOCGIFFLAGS:
- case SIOCSIFFLAGS:
- case SIOCGIFTXQLEN:
- case SIOCSIFTXQLEN:
- case SIOCGIFMTU:
- case SIOCGIFCONF:
- case SIOCADDMULTI:
- case SIOCDELMULTI:
- case SIOCGIFCOUNT:
- case SIOCGIFINDEX:
- case SIOCGIFNAME:
- rc = dev_ioctl(cmd, argp);
- break;
}
return rc;