Hi All,
I am seeing following type of code for MAC address write for a network device.
net/eth-uclass.c eth_post_probe() or net/eth_legacy.c eth_write_hwaddr()
eth_env_get_enetaddr_by_index("eth", dev->seq, env_enetaddr);
if (!is_zero_ethaddr(env_enetaddr)) {
if (!is_zero_ethaddr(pdata->enetaddr) &&
memcmp(pdata->enetaddr, env_enetaddr, ARP_HLEN)) {
printf("\nWarning: %s MAC addresses don't match:\n",
dev->name);
printf("Address in ROM is %pM\n",
pdata->enetaddr);
printf("Address in environment is %pM\n",
env_enetaddr);
}
/* Override the ROM MAC address */
memcpy(pdata->enetaddr, env_enetaddr, ARP_HLEN);
Why ROM MAC address getting overwritten by environment env MAC address.
MAC address is something unique and assigned to a particular device. So one
should never change its MAC address.
Please suggest.
Regards,
Prabhakar
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