From 8c754a04ff11a9c1107c134ad5a858e9dc08c1de Mon Sep 17 00:00:00 2001 From: Chris Snook Date: Wed, 28 Mar 2007 20:51:51 -0400 Subject: atl1: save mac address on remove Some atl1 boards get their MAC address written directly to the register by the BIOS during POST, rather than storing it in EEPROM that's accessible to the driver. If the MAC register on one of these boards is changed and then the module is unloaded, the permanent MAC address will be forgotten until the box is rebooted. We should save the permanent address during removal if we've been messing with it. Signed-off-by: Chris Snook Signed-off-by: Jeff Garzik --- drivers/net/atl1/atl1_main.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/atl1/atl1_main.c b/drivers/net/atl1/atl1_main.c index dee3638ad744..8606eac5bec8 100644 --- a/drivers/net/atl1/atl1_main.c +++ b/drivers/net/atl1/atl1_main.c @@ -2320,6 +2320,16 @@ static void __devexit atl1_remove(struct pci_dev *pdev) return; adapter = netdev_priv(netdev); + + /* Some atl1 boards lack persistent storage for their MAC, and get it + * from the BIOS during POST. If we've been messing with the MAC + * address, we need to save the permanent one. + */ + if (memcmp(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, ETH_ALEN)) { + memcpy(adapter->hw.mac_addr, adapter->hw.perm_mac_addr, ETH_ALEN); + atl1_set_mac_addr(&adapter->hw); + } + iowrite16(0, adapter->hw.hw_addr + REG_GPHY_ENABLE); unregister_netdev(netdev); pci_iounmap(pdev, adapter->hw.hw_addr); -- cgit v1.2.2