23 lines
983 B
Diff
23 lines
983 B
Diff
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
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index 934b8bacfeeb..f41d23c5f5cb 100644
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--- a/drivers/usb/gadget/u_ether.c
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+++ b/drivers/usb/gadget/u_ether.c
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@@ -1224,8 +1224,17 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN],
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dev_warn(&g->dev,
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"using random %s ethernet address\n", "self");
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#ifdef CONFIG_USB_ANDROID_SAMSUNG_COMPOSITE
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+ if ((ethaddr[0] == 0x00) && (ethaddr[1] == 0x00) &&
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+ (ethaddr[2] == 0x00) && (ethaddr[3] == 0x00) &&
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+ (ethaddr[4] == 0x00) && (ethaddr[5] == 0x00)) {
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+ printk(KERN_DEBUG "%s: no unique host MAC was set, generate random\n", __func__);
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+ /* we can use random_ether_addr() from include/linux/etherdevice.h */
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+ random_ether_addr(ethaddr);
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+ } else {
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+ printk(KERN_DEBUG "%s: set unique host mac\n", __func__);
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+ }
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memcpy(dev->host_mac, ethaddr, ETH_ALEN);
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- printk(KERN_DEBUG "usb: set unique host mac\n");
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+
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#else
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if (get_ether_addr(host_addr, dev->host_mac))
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dev_warn(&g->dev,
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