linux-kernel - Re: [PATCH 10/19] workqueue: update cwq alignement and make one more flag bit available

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Message-ID: <15216.1254414054@redhat.com>
Date:	Thu, 01 Oct 2009 17:20:54 +0100
From:	David Howells <dhowells@...hat.com>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	dhowells@...hat.com, Tejun Heo <tj@...nel.org>, mingo@...e.hu,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	jens.axboe@...cle.com, rusty@...tcorp.com.au,
	cl@...ux-foundation.org, arjan@...ux.intel.com
Subject: Re: [PATCH 10/19] workqueue: update cwq alignement and make one more flag bit available

Jeff Garzik <jeff@...zik.org> wrote:

> The quoted code is a standard kernel technique for creating typed constants
> that are visible to the C compiler (rather than CPP) and debugger.
> 
> It is found in a great many Linux kernel drivers at this point, and is
> definitely not abuse, IMO.

Just because it's common practice, and just because you like it, doesn't make
it not abuse.  But that's a side issue, and fairly irrelevant to the actual
implementation.

David
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