netdev - Re: [PATCH v6 net-next 12/19] ionic: Add Rx filter and rx

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Date:   Thu, 29 Aug 2019 16:06:10 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Shannon Nelson <snelson@...sando.io>
Cc:     netdev@...r.kernel.org, davem@...emloft.net
Subject: Re: [PATCH v6 net-next 12/19] ionic: Add Rx filter and rx_mode ndo
 support

On Thu, 29 Aug 2019 11:27:13 -0700, Shannon Nelson wrote:
> @@ -588,8 +866,26 @@ static int ionic_set_features(struct net_device *netdev,
>  
>  static int ionic_set_mac_address(struct net_device *netdev, void *sa)
>  {
> -	netdev_info(netdev, "%s: stubbed\n", __func__);
> -	return 0;
> +	struct sockaddr *addr = sa;
> +	u8 *mac;
> +
> +	mac = (u8 *)addr->sa_data;
> +	if (ether_addr_equal(netdev->dev_addr, mac))
> +		return 0;
> +
> +	if (!is_valid_ether_addr(mac))
> +		return -EADDRNOTAVAIL;
> +
> +	if (!is_zero_ether_addr(netdev->dev_addr)) {
> +		netdev_info(netdev, "deleting mac addr %pM\n",
> +			    netdev->dev_addr);
> +		ionic_addr_del(netdev, netdev->dev_addr);
> +	}
> +
> +	memcpy(netdev->dev_addr, mac, netdev->addr_len);
> +	netdev_info(netdev, "updating mac addr %pM\n", mac);
> +
> +	return ionic_addr_add(netdev, mac);
>  }

Please use the eth_prepare_mac_addr_change() and
eth_commit_mac_addr_change() helpers.