Re: [PATCH] Fix build error with strict mm checking

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At Wed, 13 Jun 2007 00:18:57 +0100,
Martin Habets wrote:
> 
> Turning on STRICT_MM_TYPECHECKS in include/asm/page.h causes a
> build error for sparc32. This patch against 2.6.21 fixes this.

Are you sure that this fix is needed for the latest 2.6.22-rc?
PAGE_KERNEL is basically defined like __pgprot(__PAGE_KERNEL) on most
architectures.  If you need extra __pgprot() there, then it must be a
bug specific to sparc32 arch.


Takashi

> 
> Martin
> 
> 	Signed-off-by: Martin Habets <errandir_news@xxxxxxxxxxxxxxxxx>
> ---
> --- linux/sound/core/sgbuf.c.orig	2007-06-06 23:53:34.000000000 +0100
> +++ linux/sound/core/sgbuf.c	2007-06-06 23:54:45.000000000 +0100
> @@ -96,7 +96,7 @@ void *snd_malloc_sgbuf_pages(struct devi
>  	}
>  
>  	sgbuf->size = size;
> -	dmab->area = vmap(sgbuf->page_table, sgbuf->pages, VM_MAP, PAGE_KERNEL);
> +	dmab->area = vmap(sgbuf->page_table, sgbuf->pages, VM_MAP, __pgprot(PAGE_KERNEL));
>  	if (! dmab->area)
>  		goto _failed;
>  	return dmab->area;
> 
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