linux-kernel - Re: [PATCH] remove unused blkdev_dax

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Date:	Wed, 18 May 2016 08:01:14 -0600
From:	Toshi Kani <toshi.kani@....com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	dan.j.williams@...el.com, jack@...e.cz, david@...morbit.com,
	viro@...iv.linux.org.uk, axboe@...com, hch@...radead.org,
	boaz@...xistor.com, tytso@....edu, adilger.kernel@...ger.ca,
	ross.zwisler@...ux.intel.com, micah.parrish@....com,
	linux-nvdimm@...ts.01.org, linux-fsdevel@...r.kernel.org,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remove unused blkdev_dax_capable() function

On Wed, 2016-05-18 at 09:54 +0200, Arnd Bergmann wrote:
> The change from blkdev_dax_capable() to bdev_dax_capable() removed the
> only user of the former, so we now get a build warning:
> 
> fs/block_dev.c:1244:13: error: 'blkdev_dax_capable' defined but not used
> [-Werror=unused-function]
>  static bool blkdev_dax_capable(struct block_device *bdev)
> 
> This removes the now-unused function.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: a8078b1fc616 ("block: Update blkdev_dax_capable() for
> consistency")
 :
> It's not entirely from the patch description what the intention was here
> in keeping two slightly different implementations of the same function
> in one file, my best guess is that it was not intentional and we should
> just remove this.

Thanks for the build fix.  Looks like there was a conflict
between 8044aae6f374 and a8078b1fc616d, which resulted this build error.
Both patches moved blkdev_dax_capable() from block/ioctl.c
to fs/block_dev.c.

Acked-by: Toshi Kani <toshi.kani@....com>

Thanks,
-Toshi