dnet: mark methods static and annotate for correct endianness

Their doesn't appear to be bugs with the endianness handling here, just get the
annotations right to keep sparse happy.

Suppresses the following sparse warnings:
drivers/net/dnet.c:30:5: warning: symbol 'dnet_readw_mac' was not declared. Should it be static?
drivers/net/dnet.c:49:6: warning: symbol 'dnet_writew_mac' was not declared. Should it be static?
drivers/net/dnet.c:364:5: warning: symbol 'dnet_phy_marvell_fixup' was not declared. Should it be static?
drivers/net/dnet.c:66:13: warning: incorrect type in assignment (different base types)
drivers/net/dnet.c:66:13:    expected unsigned short [unsigned] [usertype] tmp
drivers/net/dnet.c:66:13:    got restricted __be16 [usertype] <noident>
drivers/net/dnet.c:68:13: warning: incorrect type in assignment (different base types)
drivers/net/dnet.c:68:13:    expected unsigned short [unsigned] [usertype] tmp
drivers/net/dnet.c:68:13:    got restricted __be16 [usertype] <noident>
drivers/net/dnet.c:70:13: warning: incorrect type in assignment (different base types)
drivers/net/dnet.c:70:13:    expected unsigned short [unsigned] [usertype] tmp
drivers/net/dnet.c:70:13:    got restricted __be16 [usertype] <noident>
drivers/net/dnet.c:92:27: warning: cast to restricted __be16
drivers/net/dnet.c:94:33: warning: cast to restricted __be16
drivers/net/dnet.c:96:33: warning: cast to restricted __be16

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dnet.c

@@ -27,7 +27,7 @@
 #undef DEBUG
 
 /* function for reading internal MAC register */
-u16 dnet_readw_mac(struct dnet *bp, u16 reg)
+static u16 dnet_readw_mac(struct dnet *bp, u16 reg)
 {
 	u16 data_read;
 
@@ -46,7 +46,7 @@ u16 dnet_readw_mac(struct dnet *bp, u16 reg)
 }
 
 /* function for writing internal MAC register */
-void dnet_writew_mac(struct dnet *bp, u16 reg, u16 val)
+static void dnet_writew_mac(struct dnet *bp, u16 reg, u16 val)
 {
 	/* load data to write */
 	dnet_writel(bp, val, MACREG_DATA);
@@ -63,11 +63,11 @@ static void __dnet_set_hwaddr(struct dnet *bp)
 {
 	u16 tmp;
 
-	tmp = cpu_to_be16(*((u16 *) bp->dev->dev_addr));
+	tmp = be16_to_cpup((__be16 *)bp->dev->dev_addr);
 	dnet_writew_mac(bp, DNET_INTERNAL_MAC_ADDR_0_REG, tmp);
-	tmp = cpu_to_be16(*((u16 *) (bp->dev->dev_addr + 2)));
+	tmp = be16_to_cpup((__be16 *)(bp->dev->dev_addr + 2));
 	dnet_writew_mac(bp, DNET_INTERNAL_MAC_ADDR_1_REG, tmp);
-	tmp = cpu_to_be16(*((u16 *) (bp->dev->dev_addr + 4)));
+	tmp = be16_to_cpup((__be16 *)(bp->dev->dev_addr + 4));
 	dnet_writew_mac(bp, DNET_INTERNAL_MAC_ADDR_2_REG, tmp);
 }
 
@@ -89,11 +89,11 @@ static void __devinit dnet_get_hwaddr(struct dnet *bp)
 	 * Mac_addr[15:0]).
 	 */
 	tmp = dnet_readw_mac(bp, DNET_INTERNAL_MAC_ADDR_0_REG);
-	*((u16 *) addr) = be16_to_cpu(tmp);
+	*((__be16 *)addr) = cpu_to_be16(tmp);
 	tmp = dnet_readw_mac(bp, DNET_INTERNAL_MAC_ADDR_1_REG);
-	*((u16 *) (addr + 2)) = be16_to_cpu(tmp);
+	*((__be16 *)(addr + 2)) = cpu_to_be16(tmp);
 	tmp = dnet_readw_mac(bp, DNET_INTERNAL_MAC_ADDR_2_REG);
-	*((u16 *) (addr + 4)) = be16_to_cpu(tmp);
+	*((__be16 *)(addr + 4)) = cpu_to_be16(tmp);
 
 	if (is_valid_ether_addr(addr))
 		memcpy(bp->dev->dev_addr, addr, sizeof(addr));
@@ -361,7 +361,7 @@ err_out:
 }
 
 /* For Neptune board: LINK1000 as Link LED and TX as activity LED */
-int dnet_phy_marvell_fixup(struct phy_device *phydev)
+static int dnet_phy_marvell_fixup(struct phy_device *phydev)
 {
 	return phy_write(phydev, 0x18, 0x4148);
 }