[PATCH 3/4] r6040: warn about MAC address being unset

[Florian Fainelli <florian@openwrt.org>]

From: Florian Fainelli <florian@openwrt.org>
Subject: [PATCH 3/4] r6040: warn about MAC address being unset

Some bootloader/BIOSes do not set the MAC
address, warn about that.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index a59efbd..ce619d3 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -1127,6 +1127,11 @@ static int __devinit r6040_init_one(struct pci_dev *pdev,
 	adrp[1] = ioread16(ioaddr + MID_0M);
 	adrp[2] = ioread16(ioaddr + MID_0H);
 
+	/* Some bootloader/BIOSes do not initialize
+	 * MAC address, warn about that */
+	if (!(adrp[0] || adrp[1] || adrp[2]))
+		printk(KERN_WARNING DRV_NAME ": MAC address not initialized\n");
+
 	/* Link new device into r6040_root_dev */
 	lp->pdev = pdev;
 	lp->dev = dev;