[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/packet/af_packet.c b/net/packet/af_packet.c
index deda6fd..f69e5ed 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1521,7 +1521,7 @@
#endif
default:
- return dev_ioctl(cmd, (void __user *)arg);
+ return -ENOIOCTLCMD;
}
return 0;
}