macb: use random mac if stored address in EEPROM is invalid

We should use a random mac address if the EEPROM doesn't contain a valid one. This makes life on Boards with unprogrammed EEPROM devices easier. Signed-off-by: Sven Schnelle <[email protected]> Cc: Haavard Skinnemoen <[email protected]> Cc: Jeff Garzik <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Jeff Garzik <[email protected]>
kyagi · Jun 12, 2008 · d1d5741 · d1d5741
1 parent 86a74ff
commit d1d5741
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
@@ -80,8 +80,12 @@ static void __init macb_get_hwaddr(struct macb *bp)
 	addr[4] = top & 0xff;
 	addr[5] = (top >> 8) & 0xff;
 
-	if (is_valid_ether_addr(addr))
+	if (is_valid_ether_addr(addr)) {
 		memcpy(bp->dev->dev_addr, addr, sizeof(addr));
+	} else {
+		dev_info(&bp->pdev->dev, "invalid hw address, using random\n");
+		random_ether_addr(bp->dev->dev_addr);
+	}
 }
 
 static int macb_mdio_read(struct mii_bus *bus, int mii_id, int regnum)