From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sven Schnelle Subject: [PATCH] macb: use random mac if stored address in EEPROM is invalid Date: Wed, 04 Jun 2008 19:44:20 +0200 Message-ID: <87wsl56qob.fsf@apollo.stackframe.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: hskinnemoen@atmel.com Return-path: Received: from smtp.eurescom.eu ([89.31.1.171]:41130 "EHLO smtp.eurescom.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756050AbYFDRxN (ORCPT ); Wed, 4 Jun 2008 13:53:13 -0400 Sender: netdev-owner@vger.kernel.org List-ID: 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 --- drivers/net/macb.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 92dccd4..e346302 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)