Re: [PATCH 1/1] dma: pl330: Convert to devm_ioremap_resource()

From: Greg Kroah-Hartman
Date: Thu Jan 31 2013 - 02:28:16 EST


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@xxxxxxxxxx>
> Cc: Vinod Koul <vinod.koul@xxxxxxxxx>
> Cc: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> ---
> 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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