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

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Date:	Mon, 28 Nov 2011 14:03:27 -0000
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Wolfgang Grandegger" <wg@...ndegger.com>,
	"Marc Kleine-Budde" <mkl@...gutronix.de>
Cc:	<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

 
...
> >> +	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.

	David


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