netdev - Re: [PATCH net-next v2 2/4] can: cc770: add legacy ISA bus driver for the CC770 and AN82527

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Message-ID: <4ED3960F.4040508@pengutronix.de>
Date:	Mon, 28 Nov 2011 15:09:19 +0100
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	David Laight <David.Laight@...LAB.COM>
CC:	Wolfgang Grandegger <wg@...ndegger.com>, netdev@...r.kernel.org,
	linux-can@...r.kernel.org, socketcan-users@...ts.berlios.de,
	IreneV <boir1@...dex.ru>,
	Stanislav Yelenskiy <stanislavelensky@...oo.com>
Subject: Re: [PATCH net-next v2 2/4] can: cc770: add legacy ISA bus driver
 for the CC770 and AN82527

On 11/28/2011 03:03 PM, David Laight wrote:
>>>> +	for (idx = 0; idx < MAXDEV; idx++) {
>>> ARRAY_SIZE?
>>
>> Well, I think ARRAY_SIZE is useful to derive the number of 
>> elements from a static array of the type:
>>
>>   static const int array[] = { 1, 2, 3, 4, }
>>
>> but not if its declared as:
>>
>>   static array[MAXDEV]:
>>
>> ... or have I missed something?
> 
> Yes - if you use ARRAY_SIZE() then someone reading the code
> doesn't need to find the array definition to ensure the loop
> upper bound is correct.

Yep, that
was my intention, too.

Marc

-- 
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