linux-kernel - Re: [PATCH] Staging: comedi: comedidev: Fixed a macro definition code style issue

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Message-ID: <4C4970BC.1070901@gmail.com>
Date:	Fri, 23 Jul 2010 12:36:44 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Michael Jensen <emjay1988@...il.com>
CC:	gregkh@...e.de, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Staging: comedi: comedidev: Fixed a macro definition
 code style issue

On 07/23/2010 11:17 AM, Michael Jensen wrote:
> On Fri, Jul 23, 2010 at 6:53 PM, Jiri Slaby <jirislaby@...il.com> wrote:
>>
> <snip>
>> Hmm, does this compile?
>>
> I did build the comedi directory (as per Greg's "Write and submit your
> first kernel patch" video), and didn't get any errors (once I'd done
> the configuration)...
> 
> Did I miss something?

Then the macro is probably unused (or unused in your configuration).
Either way, the macro seems to be intended for use in the top-level
scope, so do { } while (0) cannot be used there.

-- 
js
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