linux-kernel - Re: [PATCH net] net: dlink: handle copy

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Message-Id: <DCSE8SBC2ZD1.Z7BOJYSEIELY@gmail.com>
Date: Sun, 14 Sep 2025 17:51:54 +0900
From: "Yeounsu Moon" <yyyynoom@...il.com>
To: "Andrew Lunn" <andrew@...n.ch>
Cc: "Andrew Lunn" <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, "Eric Dumazet" <edumazet@...gle.com>, "Jakub
 Kicinski" <kuba@...nel.org>, "Paolo Abeni" <pabeni@...hat.com>,
 <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net] net: dlink: handle copy_thresh allocation failure

On Sat Sep 13, 2025 at 5:39 AM KST, Andrew Lunn wrote:
>> -				skb_copy_to_linear_data (skb,
>> +				skb_copy_to_linear_data(skb,
>>  						  np->rx_skbuff[entry]->data,
>>  						  pkt_len);
>> -				skb_put (skb, pkt_len);
>> +				skb_put(skb, pkt_len);
>
> Please don't include white space changes with other changes. It makes
> the patch harder to review.
>
>     Andrew
Thank you for reviewing!

As you mentioned, it indeed becomes harder to see what the real changes
are. I have a few questions related to that:

1. If I remove the whitespace between the funciton name and the
parenthesis, `checkpatch.pl` will warn about it. Of course, I understand
that we don't need to follow such rules in a mindessly robotic way.

2. However, I also read in the netdev FAQ that cleanup-only patches are
discouraged. So I thought it would be better to include the cleanup
together with the patch. But I see your point, and I'll be more careful
not to send patches that cause such confusion in the future.

3. This is more of a personal curiosity: in that case, what would be the
proper way to handle cleanup patches?

	Yeounsu Moon