Re: [RFC] Implement dma_boundary in the generic device

[Matthew Wilcox <willy@debian.org>]

On Sun, Feb 29, 2004 at 09:56:21AM -0600, James Bottomley wrote:
> ===== drivers/scsi/hosts.c 1.96 vs edited =====
> --- 1.96/drivers/scsi/hosts.c	Mon Dec 29 15:38:10 2003
> +++ edited/drivers/scsi/hosts.c	Sun Feb 29 09:08:09 2004
> @@ -111,6 +111,9 @@
>  	if (!shost->shost_gendev.parent)
>  		shost->shost_gendev.parent = dev ? dev : &platform_bus;
>  
> +	if(dev)

<nitpick style=janitor> Space between "if" and "(" </nitpick>

> ===== include/linux/dma-mapping.h 1.1 vs edited =====
> --- 1.1/include/linux/dma-mapping.h	Sat Dec 21 22:37:05 2002
> +++ edited/include/linux/dma-mapping.h	Sun Feb 29 09:12:02 2004
> @@ -12,6 +12,15 @@
>  
>  #include <asm/dma-mapping.h>
>  
> +#ifndef ARCH_HAS_DMA_SET_BOUNDARY
> +static inline void
> +dma_set_boundary(struct device *dev, u64 boundary)
> +{
> +	dev->dma_boundary = boundary;
> +}
> +#endif

Don't all architectures want a limit to 4GB boundaries, to avoid crossing
the first 4GB?

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