Re: [git patches] libata fixes

[Andrew Morton]

On Wed, 27 Jun 2007 03:35:26 -0400 Jeff Garzik <jeff@xxxxxxxxxx> wrote:

> +	/* Don't allow DMA if it isn't multiple of 16 bytes.  Quite a
> +	 * few ATAPI devices choke on such DMA requests.
> +	 */
> +	if (unlikely(qc->nbytes & 15))
> +		return 1;

It might be worth emitting a diagnostic when this happens.
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