From: Florian Fainelli <florian@openwrt.org>
Date: Thu, 8 Jan 2009 15:04:45 +0000 (+0000)
Subject: r6040: generate random ethernet MAC address when not initialized
X-Git-Tag: firefly_0821_release~15891^2~34
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9f1136182f732f6e847fc43bd88b579739d5c211;p=firefly-linux-kernel-4.4.55.git

r6040: generate random ethernet MAC address when not initialized

This patch makes the ethernet driver assign a random ethernet
MAC address when the bootloader does not set it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index b59837e80750..8b5d50927ebf 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -1153,8 +1153,10 @@ static int __devinit r6040_init_one(struct pci_dev *pdev,
 
 	/* Some bootloader/BIOSes do not initialize
 	 * MAC address, warn about that */
-	if (!(adrp[0] || adrp[1] || adrp[2]))
-		printk(KERN_WARNING DRV_NAME ": MAC address not initialized\n");
+	if (!(adrp[0] || adrp[1] || adrp[2])) {
+		printk(KERN_WARNING DRV_NAME ": MAC address not initialized, generating random\n");
+		random_ether_addr(dev->dev_addr);
+	}
 
 	/* Link new device into r6040_root_dev */
 	lp->pdev = pdev;