net: phy: bugfixes: mv88E61xx compiler warnings fixed

1. mv88E61xx driver compiler warnings fixed
2. idstr if-else statements changed to switch() construct
   and added default case too.
   This fixed idstr may be uninitialized warning

Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

diff --git a/drivers/net/phy/mv88e61xx.c b/drivers/net/phy/mv88e61xx.c
index 29630f5bf566aad36d80abe6750bf2454c37e8d4..3754e8bdc43206760c184706ffbee78dc69fc398 100644 (file)
--- a/drivers/net/phy/mv88e61xx.c
+++ b/drivers/net/phy/mv88e61xx.c
@@ -38,7 +38,7 @@
  */
 static int mv88e61xx_busychk_multic(char *name, u32 devaddr)
 {
-       u32 reg = 0;
+       u16 reg = 0;
        u32 timeout = MV88E61XX_PHY_TIMEOUT;
 
        /* Poll till SMIBusy bit is clear */
@@ -54,8 +54,7 @@ static int mv88e61xx_busychk_multic(char *name, u32 devaddr)
 
 static void mv88e61xx_wr_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 data)
 {
-       u16 reg;
-       u32 mii_dev_addr;
+       u16 mii_dev_addr;
 
        /* command to read PHY dev address */
        if (miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) {
@@ -73,8 +72,7 @@ static void mv88e61xx_wr_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 data)
 
 static void mv88e61xx_rd_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 * data)
 {
-       u16 reg;
-       u32 mii_dev_addr;
+       u16 mii_dev_addr;
 
        /* command to read PHY dev address */
        if (miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) {
@@ -357,15 +355,22 @@ int mv88e61xx_switch_initialize(struct mv88e61xx_config *swconfig)
        }
 
        RD_PHY(name, MV88E61XX_PRT_OFST, PHY_PHYIDR2, &reg);
-       reg &= 0xfff0;
-       if (reg == 0x1610)
+       switch (reg &= 0xfff0) {
+       case 0x1610:
                idstr = "88E6161";
-       if (reg == 0x1650)
+               break;
+       case 0x1650:
                idstr = "88E6165";
-       if (reg == 0x1210) {
+               break;
+       case 0x1210:
                idstr = "88E6123";
                /* ports 2,3,4 not available */
                swconfig->ports_enabled &= 0x023;
+               break;
+       default:
+               /* Could not detect switch id */
+               idstr = "88E61??";
+               break;
        }
 
        /* Port based VLANs configuration */