From b5e5fa5e093e42cab4ee3d6dcbc4f450ad29a723 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 3 Jan 2006 14:18:33 -0800 Subject: [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 Signed-off-by: David S. Miller --- net/socket.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'net/socket.c') diff --git a/net/socket.c b/net/socket.c index 0dde6dade2b..06fa217f58a 100644 --- a/net/socket.c +++ b/net/socket.c @@ -900,6 +900,13 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) break; default: err = sock->ops->ioctl(sock, cmd, arg); + + /* + * If this ioctl is unknown try to hand it down + * to the NIC driver. + */ + if (err == -ENOIOCTLCMD) + err = dev_ioctl(cmd, argp); break; } return err; -- cgit v1.2.3