linux-kernel - Re: [PATCH 2/2] Fix copy-paste bug: assign from src struct not dest

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Message-ID: <54ADBC13.70100@broadcom.com>
Date:	Thu, 8 Jan 2015 00:06:59 +0100
From:	Arend van Spriel <arend@...adcom.com>
To:	Johannes Berg <johannes@...solutions.net>
CC:	Giel van Schijndel <me@...tis.eu>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	<linux-kernel@...r.kernel.org>, Kalle Valo <kvalo@...eaurora.org>,
	Eliad Peller <eliad@...ery.com>,
	"John W. Linville" <linville@...driver.com>,
	Arik Nemtsov <arik@...ery.com>,
	"open list:TI WILINK WIRELES..." <linux-wireless@...r.kernel.org>,
	open list: "NETWORKING DRIVERS" <netdev@...r.kernel.org>, ;
Subject: Re: [PATCH 2/2] Fix copy-paste bug: assign from src struct not dest

On 01/07/15 23:16, Johannes Berg wrote:
> On Wed, 2015-01-07 at 20:18 +0100, Giel van Schijndel wrote:
>
>> IMO the aligned block of code has the significant advantage of taking
>> advantage of humans' ability to spot things that break a pattern. Which
>> in this case becomes *very* visible when properly aligned, because
>> without the alignment there is no (visual) pattern (or at least not one
>> very suitable for my "visual processing system", I know the same applies
>> to at least some others).
>
> Yeah, well, but why even invoke that "visual processing system"?
>
> If you look, for example, at the __skb_clone function it just uses a
> macro:
>
> #define C(x) n->x = skb->x

This requires fixed names so I generally prefer to add them:

#define C(d, s, f)	(d)->f = (s)->f

> and then
>
> 	C(len);
> 	C(data_len);

	C(acx, conf, window_size);
	C(acx, conf, increase_time);

Regards,
Arend

>
> etc.
>
> johannes
>
> --
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