drivers/net: fix sparse warnings: make do-while a compound statement

While at it insert some extra curly braces and fix formatting.

Fix this sparse warnings:

  drivers/net/atp.c:811:8: warning: do-while statement is not a compound statement
  drivers/net/atp.c:813:8: warning: do-while statement is not a compound statement
  drivers/net/atp.c:815:11: warning: do-while statement is not a compound statement
  drivers/net/atp.c:817:11: warning: do-while statement is not a compound statement
  drivers/net/plip.c:642:4: warning: do-while statement is not a compound statement
  drivers/net/plip.c:647:4: warning: do-while statement is not a compound statement
  drivers/net/plip.c:820:4: warning: do-while statement is not a compound statement
  drivers/net/plip.c:825:4: warning: do-while statement is not a compound statement
  drivers/net/starfire.c:886:3: warning: do-while statement is not a compound statement
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/atp.c

@@ -802,19 +802,20 @@ static void net_rx(struct net_device *dev)
 
 static void read_block(long ioaddr, int length, unsigned char *p, int data_mode)
 {
-
 	if (data_mode <= 3) { /* Mode 0 or 1 */
 		outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
 		outb(length == 8  ?  RdAddr | HNib | MAR  :  RdAddr | MAR,
 			 ioaddr + PAR_DATA);
 		if (data_mode <= 1) { /* Mode 0 or 1 */
-			do  *p++ = read_byte_mode0(ioaddr);  while (--length > 0);
-		} else	/* Mode 2 or 3 */
-			do  *p++ = read_byte_mode2(ioaddr);  while (--length > 0);
-	} else if (data_mode <= 5)
-		do      *p++ = read_byte_mode4(ioaddr);  while (--length > 0);
-	else
-		do      *p++ = read_byte_mode6(ioaddr);  while (--length > 0);
+			do { *p++ = read_byte_mode0(ioaddr); } while (--length > 0);
+		} else { /* Mode 2 or 3 */
+			do { *p++ = read_byte_mode2(ioaddr); } while (--length > 0);
+		}
+	} else if (data_mode <= 5) {
+		do { *p++ = read_byte_mode4(ioaddr); } while (--length > 0);
+	} else {
+		do { *p++ = read_byte_mode6(ioaddr); } while (--length > 0);
+	}
 
 	outb(EOC+HNib+MAR, ioaddr + PAR_DATA);
 	outb(Ctrl_SelData, ioaddr + PAR_CONTROL);

drivers/net/plip.c

@@ -638,14 +638,14 @@ plip_receive_packet(struct net_device *dev, struct net_local *nl,
 
 	case PLIP_PK_DATA:
 		lbuf = rcv->skb->data;
-		do
+		do {
 			if (plip_receive(nibble_timeout, dev,
 					 &rcv->nibble, &lbuf[rcv->byte]))
 				return TIMEOUT;
-		while (++rcv->byte < rcv->length.h);
-		do
+		} while (++rcv->byte < rcv->length.h);
+		do {
 			rcv->checksum += lbuf[--rcv->byte];
-		while (rcv->byte);
+		} while (rcv->byte);
 		rcv->state = PLIP_PK_CHECKSUM;
 
 	case PLIP_PK_CHECKSUM:
@@ -816,14 +816,14 @@ plip_send_packet(struct net_device *dev, struct net_local *nl,
 		snd->checksum = 0;
 
 	case PLIP_PK_DATA:
-		do
+		do {
 			if (plip_send(nibble_timeout, dev,
 				      &snd->nibble, lbuf[snd->byte]))
 				return TIMEOUT;
-		while (++snd->byte < snd->length.h);
-		do
+		} while (++snd->byte < snd->length.h);
+		do {
 			snd->checksum += lbuf[--snd->byte];
-		while (snd->byte);
+		} while (snd->byte);
 		snd->state = PLIP_PK_CHECKSUM;
 
 	case PLIP_PK_CHECKSUM:

drivers/net/starfire.c

@@ -880,9 +880,9 @@ static int mdio_read(struct net_device *dev, int phy_id, int location)
 	void __iomem *mdio_addr = np->base + MIICtrl + (phy_id<<7) + (location<<2);
 	int result, boguscnt=1000;
 	/* ??? Should we add a busy-wait here? */
-	do
+	do {
 		result = readl(mdio_addr);
-	while ((result & 0xC0000000) != 0x80000000 && --boguscnt > 0);
+	} while ((result & 0xC0000000) != 0x80000000 && --boguscnt > 0);
 	if (boguscnt == 0)
 		return 0;
 	if ((result & 0xffff) == 0xffff)