linux-kernel - Re: [PATCH] bsg: Fix warning with CONFIG_BLK_DEV

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Message-ID: <20070729105458.GH32258@kernel.dk>
Date:	Sun, 29 Jul 2007 12:54:58 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bsg: Fix warning with CONFIG_BLK_DEV_BSG=n

On Sat, Jul 28 2007, Roland Dreier wrote:
> The current stub definitions of bsg_register_queue() and
> bsg_unregister_queue() as macros leads to
> 
>     drivers/scsi/scsi_sysfs.c: In function 'scsi_sysfs_add_sdev':
>     drivers/scsi/scsi_sysfs.c:718: warning: unused variable 'rq'
> 
> because the first parameter of bsg_register_queue() is completely
> discarded.  As akpm says, "program in C, not in cpp."  We might as
> well get a little bit better type-checking when we fix this by
> converting the stubs to empty inline functions.

James should already have that patch queued for inclusion since last
week.

-- 
Jens Axboe

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