[PATCH] PXA DMA-capable PATA driver
Tejun Heo
htejun at gmail.com
Thu May 20 04:48:51 EDT 2010
On 05/18/2010 12:53 AM, Marek Vasut wrote:
> 4766 /**
> 4767 * atapi_check_dma - Check whether ATAPI DMA can be supported
> 4768 * @qc: Metadata associated with taskfile to check
> 4769 *
> 4770 * Allow low-level driver to filter ATA PACKET commands, returning
> 4771 * a status indicating whether or not it is OK to use DMA for the
> 4772 * supplied PACKET command.
> 4773 *
> 4774 * LOCKING:
> 4775 * spin_lock_irqsave(host lock)
> 4776 *
> 4777 * RETURNS: 0 when ATAPI DMA can be used
> 4778 * nonzero otherwise
> 4779 */
>
> this is from libata-core.c FYI and -EOPNOTSUPP is non-zero.
Argh... that method needs to be changed to return bool.
--
tejun
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