linux-kernel - Re: [PATCH net-next v2 2/4] net: macb: Add ARP support to WOL

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Date: Fri, 23 Feb 2024 10:16:26 +0530
From: Vineeth Karumanchi <vineeth.karumanchi@....com>
To: Andrew Lunn <andrew@...n.ch>
Cc: nicolas.ferre@...rochip.com, claudiu.beznea@...on.dev,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, linux@...linux.org.uk, vadim.fedorenko@...ux.dev,
 netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, git@....com
Subject: Re: [PATCH net-next v2 2/4] net: macb: Add ARP support to WOL

Hi Andrew,

On 23/02/24 1:02 am, Andrew Lunn wrote:
>>   	u32			wol;
>> +	u32			wolopts;
> 
>> +	wol->supported |= (bp->wol & MACB_WOL_HAS_MAGIC_PACKET) ? WAKE_MAGIC : 0;
>> +	wol->supported |= (bp->wol & MACB_WOL_HAS_ARP_PACKET) ? WAKE_ARP : 0;
> 
>> +	if (bp->caps & MACB_CAPS_WOL)
>> +		bp->wol |= (MACB_WOL_HAS_ARP_PACKET | MACB_WOL_HAS_MAGIC_PACKET);
> 
> So bp->wol is the capabilities of the hardware?
> 

Yes, it holds the supported capabilities.

> And bp->wolopts is what has been enabled via ethtool?
> 

Yes, it holds the selected options through ethtool.

> I just wounder if it would be easier to understand is bp->wol was
> renamed wol_caps, similar to bp->caps?
> 
> 	Andrew

Sure, I will make the change.

🙏 vineeth