NAME
atapi_check_dma - Check whether ATAPI DMA can be supported
SYNOPSIS
int atapi_check_dma(struct ata_queued_cmd * qc);
ARGUMENTS
qc
Metadata associated with taskfile to check
DESCRIPTION
Allow low-level driver to filter ATA PACKET commands, returning a status indicating whether or not it is OK to use DMA for the supplied PACKET command.
LOCKING: spin_lock_irqsave(host lock)
RETURN
0 when ATAPI DMA can be used nonzero otherwise
AUTHOR
Jeff Garzik
Author.