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e1000e: alternate MAC address update

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If word 0x37 in the EEPROM is 0xFFFF _or_ 0x0000, then there is no
alternate MAC address in the EEPROM.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan 2011-07-29 05:53:07 +00:00 committed by Jeff Kirsher
parent 7f99ae6338
commit 244735f6eb
1 changed files with 2 additions and 2 deletions
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4
drivers/net/e1000e/lib.c
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@ -201,10 +201,10 @@ s32 e1000_check_alt_mac_addr_generic(struct e1000_hw *hw)
goto out;
}
if (nvm_alt_mac_addr_offset == 0xFFFF) {
if ((nvm_alt_mac_addr_offset == 0xFFFF) ||
(nvm_alt_mac_addr_offset == 0x0000))
/* There is no Alternate MAC Address */
goto out;
}
if (hw->bus.func == E1000_FUNC_1)
nvm_alt_mac_addr_offset += E1000_ALT_MAC_ADDRESS_OFFSET_LAN1;