diff --git a/drivers/net/7990.c b/drivers/net/7990.c
index d396f99..0877fc3 100644
--- a/drivers/net/7990.c
+++ b/drivers/net/7990.c
@@ -565,9 +565,9 @@
         ib->btx_ring [entry].length = (-len) | 0xf000;
         ib->btx_ring [entry].misc = 0;
 
-    	if (skb->len < ETH_ZLEN)
-    		memset((char *)&ib->tx_buf[entry][0], 0, ETH_ZLEN);
-        skb_copy_from_linear_data(skb, &ib->tx_buf[entry][0], skblen);
+	if (skb->len < ETH_ZLEN)
+		memset((void *)&ib->tx_buf[entry][0], 0, ETH_ZLEN);
+        skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen);
 
         /* Now, give the packet to the lance */
         ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c
index 37534f3..81d5a37 100644
--- a/drivers/net/a2065.c
+++ b/drivers/net/a2065.c
@@ -597,11 +597,11 @@
 	ib->btx_ring [entry].length = (-len) | 0xf000;
 	ib->btx_ring [entry].misc = 0;
 
-	skb_copy_from_linear_data(skb, &ib->tx_buf [entry][0], skblen);
+	skb_copy_from_linear_data(skb, (void *)&ib->tx_buf [entry][0], skblen);
 
 	/* Clear the slack of the packet, do I need this? */
 	if (len != skblen)
-		memset ((char *) &ib->tx_buf [entry][skblen], 0, len - skblen);
+		memset ((void *) &ib->tx_buf [entry][skblen], 0, len - skblen);
 
 	/* Now, give the packet to the lance */
 	ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
diff --git a/drivers/net/sun3_82586.c b/drivers/net/sun3_82586.c
index 396c3d9..a123ea8 100644
--- a/drivers/net/sun3_82586.c
+++ b/drivers/net/sun3_82586.c
@@ -1023,10 +1023,11 @@
 	{
 		len = skb->len;
 		if (len < ETH_ZLEN) {
-			memset((char *)p->xmit_cbuffs[p->xmit_count], 0, ETH_ZLEN);
+			memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
+			       ETH_ZLEN);
 			len = ETH_ZLEN;
 		}
-		skb_copy_from_linear_data(skb, p->xmit_cbuffs[p->xmit_count], skb->len);
+		skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len);
 
 #if (NUM_XMIT_BUFFS == 1)
 #	ifdef NO_NOPCOMMANDS