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011f2c26f1
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
40 lines
1.7 KiB
Diff
40 lines
1.7 KiB
Diff
From 0f77e8585ca73daddcc386ec45c9e5d5649de0fa Mon Sep 17 00:00:00 2001
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From: Craig Roberts <cjr@craigroberts.net>
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Date: Tue, 16 Feb 2016 10:03:42 +0000
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Subject: [PATCH] Updated smsc95xx driver to check for a valid MAC address in
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eeprom before using smsc95xx.macaddr parameter passed on command line.
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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,
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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
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meaning they don't end up with the same MAC address as the built-in RPi adaptor.
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---
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drivers/net/usb/smsc95xx.c | 10 +++++-----
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1 file changed, 5 insertions(+), 5 deletions(-)
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--- a/drivers/net/usb/smsc95xx.c
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+++ b/drivers/net/usb/smsc95xx.c
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@@ -817,10 +817,6 @@ static int smsc95xx_is_macaddr_param(str
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static void smsc95xx_init_mac_address(struct usbnet *dev)
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{
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- /* Check module parameters */
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- if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr))
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- return;
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-
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/* try reading mac address from EEPROM */
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if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
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dev->net->dev_addr) == 0) {
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@@ -831,7 +827,11 @@ static void smsc95xx_init_mac_address(st
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}
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}
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- /* no eeprom, or eeprom values are invalid. generate random MAC */
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+ /* Check module parameters */
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+ if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr))
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+ return;
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+
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+ /* no eeprom, or eeprom values are invalid, and no module parameter specified to set MAC. Generate random MAC */
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eth_hw_addr_random(dev->net);
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netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
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}
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