linux-kernel - Re: [PATCH 1/1] dma: pl330: Convert to devm_ioremap

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Date:	Thu, 31 Jan 2013 08:30:05 +0100
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Sachin Kamat <sachin.kamat@...aro.org>
Cc:	linux-kernel@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
	Thierry Reding <thierry.reding@...onic-design.de>
Subject: Re: [PATCH 1/1] dma: pl330: Convert to devm_ioremap_resource()

On Thu, Jan 31, 2013 at 12:37:04PM +0530, Sachin Kamat wrote:
> Use the newly introduced devm_ioremap_resource() instead of
> devm_request_and_ioremap() which provides more consistent error handling.
> 
> Signed-off-by: Sachin Kamat <sachin.kamat@...aro.org>
> Cc: Vinod Koul <vinod.koul@...el.com>
> Cc: Thierry Reding <thierry.reding@...onic-design.de>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> ---
> This change is based against linux-next tree (20130128).
> This change however introduces the followign sparse warning:
> drivers/dma/pl330.c:2883:22: warning: incorrect type in argument 1 (different address spaces)
> drivers/dma/pl330.c:2883:22:    expected void const *ptr
> drivers/dma/pl330.c:2883:22:    got void [noderef] <asn:2>*base
> drivers/dma/pl330.c:2884:34: warning: incorrect type in argument 1 (different address spaces)
> drivers/dma/pl330.c:2884:34:    expected void const *ptr
> drivers/dma/pl330.c:2884:34:    got void [noderef] <asn:2>*base

These are known, a patch has been posted for both the kernel and sparse
to fix this up.

thanks,

greg k-h
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