r8169: prevent bit sign expansion error in mdio_write

[linux-2.6-omap-h63xx.git] / drivers / net / r8169.c

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index e8960f294a6e04d8cfe5ed0b2cc5469bf4ebd918..1f647b9ce352128ae65fbc3d15d15062615adeea 100644 (file)
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -171,6 +171,8 @@ static struct pci_device_id rtl8169_pci_tbl[] = {
        { PCI_DEVICE(0x16ec,                    0x0116), 0, 0, RTL_CFG_0 },
        { PCI_VENDOR_ID_LINKSYS,                0x1032,
                PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
+       { 0x0001,                               0x8168,
+               PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
        {0,},
 };
 
@@ -392,7 +394,9 @@ struct rtl8169_private {
        void __iomem *mmio_addr;        /* memory map physical address */
        struct pci_dev *pci_dev;        /* Index of PCI device */
        struct net_device *dev;
+#ifdef CONFIG_R8169_NAPI
        struct napi_struct napi;
+#endif
        spinlock_t lock;                /* spin lock flag */
        u32 msg_enable;
        int chipset;
@@ -466,7 +470,7 @@ static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 {
        int i;
 
-       RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0xFF) << 16 | value);
+       RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
 
        for (i = 20; i > 0; i--) {
                /*
@@ -483,7 +487,7 @@ static int mdio_read(void __iomem *ioaddr, int reg_addr)
 {
        int i, value = -1;
 
-       RTL_W32(PHYAR, 0x0 | (reg_addr & 0xFF) << 16);
+       RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
 
        for (i = 20; i > 0; i--) {
                /*
@@ -491,7 +495,7 @@ static int mdio_read(void __iomem *ioaddr, int reg_addr)
                 * the specified MII register.
                 */
                if (RTL_R32(PHYAR) & 0x80000000) {
-                       value = (int) (RTL_R32(PHYAR) & 0xFFFF);
+                       value = RTL_R32(PHYAR) & 0xffff;
                        break;
                }
                udelay(25);
@@ -1243,16 +1247,6 @@ static void rtl8169sb_hw_phy_config(void __iomem *ioaddr)
 
        rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
 }
-static void rtl8168b_hw_phy_config(void __iomem *ioaddr)
-{
-       struct phy_reg phy_reg_init[] = {
-               { 0x1f, 0x0000 },
-               { 0x10, 0xf41b },
-               { 0x1f, 0x0000 }
-       };
-
-       rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init));
-}
 
 static void rtl8168cp_hw_phy_config(void __iomem *ioaddr)
 {
@@ -1322,11 +1316,6 @@ static void rtl_hw_phy_config(struct net_device *dev)
        case RTL_GIGA_MAC_VER_04:
                rtl8169sb_hw_phy_config(ioaddr);
                break;
-       case RTL_GIGA_MAC_VER_11:
-       case RTL_GIGA_MAC_VER_12:
-       case RTL_GIGA_MAC_VER_17:
-               rtl8168b_hw_phy_config(ioaddr);
-               break;
        case RTL_GIGA_MAC_VER_18:
                rtl8168cp_hw_phy_config(ioaddr);
                break;
@@ -1737,7 +1726,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
        RTL_W8(Cfg9346, Cfg9346_Lock);
 
-       if (RTL_R8(PHYstatus) & TBI_Enable) {
+       if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
+           (RTL_R8(PHYstatus) & TBI_Enable)) {
                tp->set_speed = rtl8169_set_speed_tbi;
                tp->get_settings = rtl8169_gset_tbi;
                tp->phy_reset_enable = rtl8169_tbi_reset_enable;
@@ -2989,13 +2979,16 @@ static void rtl8169_down(struct net_device *dev)
 {
        struct rtl8169_private *tp = netdev_priv(dev);
        void __iomem *ioaddr = tp->mmio_addr;
-       unsigned int poll_locked = 0;
        unsigned int intrmask;
 
        rtl8169_delete_timer(dev);
 
        netif_stop_queue(dev);
 
+#ifdef CONFIG_R8169_NAPI
+       napi_disable(&tp->napi);
+#endif
+
 core_down:
        spin_lock_irq(&tp->lock);
 
@@ -3009,11 +3002,6 @@ core_down:
 
        synchronize_irq(dev->irq);
 
-       if (!poll_locked) {
-               napi_disable(&tp->napi);
-               poll_locked++;
-       }
-
        /* Give a racing hard_start_xmit a few cycles to complete. */
        synchronize_sched();  /* FIXME: should this be synchronize_irq()? */