[PATCH] (1/7) chelsio sparse annotations

NULL noise removal, __iomem annotations, use of if_mii() instead of
open-coding it.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c
index 28ae478..349ebe7 100644
--- a/drivers/net/chelsio/cxgb2.c
+++ b/drivers/net/chelsio/cxgb2.c
@@ -824,7 +824,7 @@
 static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
 {
         struct adapter *adapter = dev->priv;
-        struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data;
+        struct mii_ioctl_data *data = if_mii(req);
 
 	switch (cmd) {
         case SIOCGMIIPHY: