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- From 0f77e8585ca73daddcc386ec45c9e5d5649de0fa Mon Sep 17 00:00:00 2001
- From: Craig Roberts <cjr@craigroberts.net>
- Date: Tue, 16 Feb 2016 10:03:42 +0000
- Subject: [PATCH] Updated smsc95xx driver to check for a valid MAC address in
- eeprom before using smsc95xx.macaddr parameter passed on command line.
- The built-in RPi adaptor will still get a MAC address based on the parameter passed on the command line as the RPi hardware does not have an eeprom,
- however usb->ethernet adaptors using the same driver should have an eeprom with MAC address as part of their hardware and therefore will use this
- meaning they don't end up with the same MAC address as the built-in RPi adaptor.
- ---
- drivers/net/usb/smsc95xx.c | 10 +++++-----
- 1 file changed, 5 insertions(+), 5 deletions(-)
- --- a/drivers/net/usb/smsc95xx.c
- +++ b/drivers/net/usb/smsc95xx.c
- @@ -820,10 +820,6 @@ static int smsc95xx_is_macaddr_param(str
-
- static void smsc95xx_init_mac_address(struct usbnet *dev)
- {
- - /* Check module parameters */
- - if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr))
- - return;
- -
- /* try reading mac address from EEPROM */
- if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
- dev->net->dev_addr) == 0) {
- @@ -834,7 +830,11 @@ static void smsc95xx_init_mac_address(st
- }
- }
-
- - /* no eeprom, or eeprom values are invalid. generate random MAC */
- + /* Check module parameters */
- + if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr))
- + return;
- +
- + /* no eeprom, or eeprom values are invalid, and no module parameter specified to set MAC. Generate random MAC */
- eth_hw_addr_random(dev->net);
- netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
- }
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