---

yaml
---
r: 117773
b: refs/heads/master
c: e1564ec
h: refs/heads/master
i:
  117771: 2fbc1b0
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cd926c7330ae76b620853533e68654a1ef0c2347
+refs/heads/master: e1564ec938b759268d6e67f24b5d6f429da4a5a9

trunk/drivers/net/r8169.c

@@ -81,6 +81,10 @@ static const int multicast_filter_limit = 32;
 #define RTL8169_TX_TIMEOUT	(6*HZ)
 #define RTL8169_PHY_TIMEOUT	(10*HZ)
 
+#define RTL_EEPROM_SIG		cpu_to_le32(0x8129)
+#define RTL_EEPROM_SIG_MASK	cpu_to_le32(0xffff)
+#define RTL_EEPROM_SIG_ADDR	0x0000
+
 /* write/read MMIO register */
 #define RTL_W8(reg, val8)	writeb ((val8), ioaddr + (reg))
 #define RTL_W16(reg, val16)	writew ((val16), ioaddr + (reg))
@@ -1944,9 +1948,10 @@ static void rtl_init_mac_address(struct rtl8169_private *tp,
 				 void __iomem *ioaddr)
 {
 	struct pci_dev *pdev = tp->pci_dev;
-	u8 cfg1;
 	int vpd_cap;
+	__le32 sig;
 	u8 mac[8];
+	u8 cfg1;
 
 	cfg1 = RTL_R8(Config1);
 	if (!(cfg1  & VPD)) {
@@ -1961,7 +1966,16 @@ static void rtl_init_mac_address(struct rtl8169_private *tp,
 	if (!vpd_cap)
 		return;
 
-	/* MAC address is stored in EEPROM at offset 0x0e
+	if (rtl_eeprom_read(pdev, vpd_cap, RTL_EEPROM_SIG_ADDR, &sig) < 0)
+		return;
+
+	if ((sig & RTL_EEPROM_SIG_MASK) != RTL_EEPROM_SIG) {
+		dev_info(&pdev->dev, "Missing EEPROM signature: %08x\n", sig);
+		return;
+	}
+
+	/*
+	 * MAC address is stored in EEPROM at offset 0x0e
 	 * Realtek says: "The VPD address does not have to be a DWORD-aligned
 	 * address as defined in the PCI 2.2 Specifications, but the VPD data
 	 * is always consecutive 4-byte data starting from the VPD address
@@ -1983,8 +1997,8 @@ static void rtl_init_mac_address(struct rtl8169_private *tp,
 			 print_mac(buf, mac));
 	}
 
-	/* Write MAC address */
-	rtl_rar_set(tp, mac);
+	if (is_valid_ether_addr(mac))
+		rtl_rar_set(tp, mac);
 }
 
 static int __devinit