[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>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index e57683d424f7..fbfa96754417 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1822,7 +1822,7 @@ static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
                 return -EINVAL;
         default:
                 IRDA_DEBUG(1, "%s(), doing device ioctl!\n", __FUNCTION__);
-                return dev_ioctl(cmd, (void __user *) arg);
+                return -ENOIOCTLCMD;
         }
 
         /*NOTREACHED*/