WorkStruct: make allyesconfig

Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c
index b32c52e..f0c61f3 100644
--- a/drivers/net/irda/mcs7780.c
+++ b/drivers/net/irda/mcs7780.c
@@ -560,9 +560,9 @@
 	return ret;
 }
 
-static void mcs_speed_work(void *arg)
+static void mcs_speed_work(struct work_struct *work)
 {
-	struct mcs_cb *mcs = arg;
+	struct mcs_cb *mcs = container_of(work, struct mcs_cb, work);
 	struct net_device *netdev = mcs->netdev;
 
 	mcs_speed_change(mcs);
@@ -927,7 +927,7 @@
 	irda_qos_bits_to_value(&mcs->qos);
 
 	/* Speed change work initialisation*/
-	INIT_WORK(&mcs->work, mcs_speed_work, mcs);
+	INIT_WORK(&mcs->work, mcs_speed_work);
 
 	/* Override the network functions we need to use */
 	ndev->hard_start_xmit = mcs_hard_xmit;