From d1d5741d8568c268ec234a5b35af4a04498be6d8 Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Mon, 9 Jun 2008 16:33:57 -0700
Subject: [PATCH] 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 <svens@stackframe.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
drivers/net/macb.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 92dccd43bdca..e34630252cef 100644
--- 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)
--
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