Subject: Re: [PATCH 3/4] net: macb: Drop nvmem_get_mac_address usage

From: Andrew Lunn <[email-masked]>
Date: Sat, 27 Apr 2019 18:44:08 +0200

On Sat, Apr 27, 2019 at 01:06:41AM +0200, Petr Štetiar wrote:
> of_get_mac_address now uses NVMEM under the hood, so it's not necessary
> to call it manually anymore.
> 
> Signed-off-by: Petr Štetiar <[email-masked]>
> ---
>  drivers/net/ethernet/cadence/macb_main.c | 12 +++---------
>  1 file changed, 3 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index 3da2795..1b98bc8 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -4172,16 +4172,10 @@ static int macb_probe(struct platform_device *pdev)
>  		bp->rx_intr_mask |= MACB_BIT(RXUBR);
>  
>  	mac = of_get_mac_address(np);
> -	if (mac) {
> +	if (mac)
>  		ether_addr_copy(bp->dev->dev_addr, mac);
> -	} else {
> -		err = nvmem_get_mac_address(&pdev->dev, bp->dev->dev_addr);
> -		if (err) {
> -			if (err == -EPROBE_DEFER)
> -				goto err_out_free_netdev;
> -			macb_get_hwaddr(bp);
> -		}
> -	}

Here we have an ordering problem. The current code looks for NVMEM
after local-mac-address and mac-address. You change will make it look
for NVMEM first.

    Andrew