libata: implement protocol tests

Implement protocol tests - ata_is_atapi(), ata_is_nodata(),
ata_is_pio(), ata_is_dma(), ata_is_ncq() and ata_is_data() and use
them to replace is_atapi_taskfile() and hard coded protocol tests.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index ef5e6b6e6e69..5eee91c73c90 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1511,7 +1511,7 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc)
 {
         struct ata_port *ap = qc->ap;
         struct ahci_port_priv *pp = ap->private_data;
-        int is_atapi = is_atapi_taskfile(&qc->tf);
+        int is_atapi = ata_is_atapi(qc->tf.protocol);
         void *cmd_tbl;
         u32 opts;
         const u32 cmd_fis_len = 5; /* five dwords */