From fadac4060c0456ce0a190ee581746ae8663f84e1 Mon Sep 17 00:00:00 2001 From: Gabriel Paubert Date: Fri, 23 Mar 2007 12:03:52 -0700 Subject: [PATCH] mv643xx_eth: Fix use of uninitialized port_num field In this driver, the default ethernet address is first set by by calling eth_port_uc_addr_get() which reads the relevant registers of the corresponding port as initially set by firmware. However that function used the port_num field accessed through the private area of net_dev before it was set. The result was that one board I have ended up with the unicast address set to 00:00:00:00:00:00 (only port 1 is connected on this board). The problem appeared after commit 84dd619e4dc3b0b1c40dafd98c90fd950bce7bc5. This patch fixes the bug by setting mp->port_num prior to calling eth_port_uc_get_addr(). Signed-off-by: Gabriel Paubert Signed-off-by: Dale Farnsworth Signed-off-by: Jeff Garzik --- drivers/net/mv643xx_eth.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index c9f55bc57edb..8015a7c5b0c9 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -1379,7 +1379,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev) spin_lock_init(&mp->lock); - port_num = pd->port_number; + port_num = mp->port_num = pd->port_number; /* set default config values */ eth_port_uc_addr_get(dev, dev->dev_addr); @@ -1411,8 +1411,6 @@ static int mv643xx_eth_probe(struct platform_device *pdev) duplex = pd->duplex; speed = pd->speed; - mp->port_num = port_num; - /* Hook up MII support for ethtool */ mp->mii.dev = dev; mp->mii.mdio_read = mv643xx_mdio_read; -- 2.20.1