net: split out ndo_siowandev ioctl

In order to further reduce the scope of ndo_do_ioctl(), move
out the SIOCWANDEV handling into a new network device operation
function.

Adjust the prototype to only pass the if_settings sub-structure
in place of the ifreq, and remove the redundant 'cmd' argument
in the process.

Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: "Jan \"Yenya\" Kasprzak" <kas@fi.muni.cz>
Cc: Kevin Curtis <kevin.curtis@farsite.co.uk>
Cc: Zhao Qiang <qiang.zhao@nxp.com>
Cc: Martin Schiller <ms@dev.tdt.de>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: linux-x25@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 11 deletions

diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index 39f05fabbfa4..cda1b4ce6b21 100644
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -674,31 +674,28 @@ static irqreturn_t ucc_hdlc_irq_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int uhdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int uhdlc_ioctl(struct net_device *dev, struct if_settings *ifs)
 {
 	const size_t size = sizeof(te1_settings);
 	te1_settings line;
 	struct ucc_hdlc_private *priv = netdev_priv(dev);
 
-	if (cmd != SIOCWANDEV)
-		return hdlc_ioctl(dev, ifr, cmd);
-
-	switch (ifr->ifr_settings.type) {
+	switch (ifs->type) {
 	case IF_GET_IFACE:
-		ifr->ifr_settings.type = IF_IFACE_E1;
-		if (ifr->ifr_settings.size < size) {
-			ifr->ifr_settings.size = size; /* data size wanted */
+		ifs->type = IF_IFACE_E1;
+		if (ifs->size < size) {
+			ifs->size = size; /* data size wanted */
 			return -ENOBUFS;
 		}
 		memset(&line, 0, sizeof(line));
 		line.clock_type = priv->clocking;
 
-		if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &line, size))
+		if (copy_to_user(ifs->ifs_ifsu.sync, &line, size))
 			return -EFAULT;
 		return 0;
 
 	default:
-		return hdlc_ioctl(dev, ifr, cmd);
+		return hdlc_ioctl(dev, ifs);
 	}
 }
 
@@ -1053,7 +1050,7 @@ static const struct net_device_ops uhdlc_ops = {
 	.ndo_open       = uhdlc_open,
 	.ndo_stop       = uhdlc_close,
 	.ndo_start_xmit = hdlc_start_xmit,
-	.ndo_do_ioctl   = uhdlc_ioctl,
+	.ndo_siocwandev = uhdlc_ioctl,
 	.ndo_tx_timeout	= uhdlc_tx_timeout,
 };