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Date:	Wed, 15 Sep 2010 13:07:12 +0200
From:	Jens Axboe <>
To:	Namhyung Kim <>
Subject: Re: [PATCH] block: fix an address space warning in blk-map.c

On 2010-09-14 17:42, Namhyung Kim wrote:
> Change type of 2nd parameter of blk_rq_aligned() into unsigned long
> and remove unnecessary casting. Now we can call it with 'uaddr'
> instead of 'ubuf' in __blk_rq_map_user() so that it can remove
> following warnings from sparse:
>  block/blk-map.c:57:31: warning: incorrect type in argument 2 (different address spaces)
>  block/blk-map.c:57:31:    expected void *addr
>  block/blk-map.c:57:31:    got void [noderef] <asn:1>*ubuf
> However blk_rq_map_kern() needs one more local variable to handle it.

Thanks, applied to for-2.6.37/core

Jens Axboe

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