[PATCH] libata-dev: Remove ATA_PROT_PIO_MULT

Remove the ATA_PROT_PIO_MULT protocol.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/scsi/libata-core.c

@@ -3909,7 +3909,6 @@ static inline int ata_should_dma_map(struct ata_queued_cmd *qc)
 
 	case ATA_PROT_ATAPI:
 	case ATA_PROT_PIO:
-	case ATA_PROT_PIO_MULT:
 		if (ap->flags & ATA_FLAG_PIO_DMA)
 			return 1;
 

drivers/scsi/libata-scsi.c

@@ -2379,9 +2379,6 @@ ata_scsi_map_proto(u8 byte1)
 
 		case 4:		/* PIO Data-in */
 		case 5:		/* PIO Data-out */
-			if (byte1 & 0xe0) {
-				return ATA_PROT_PIO_MULT;
-			}
 			return ATA_PROT_PIO;
 
 		case 10:	/* Device Reset */
@@ -2420,6 +2417,10 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd)
 	if ((tf->protocol = ata_scsi_map_proto(scsicmd[1])) == ATA_PROT_UNKNOWN)
 		goto invalid_fld;
 
+	if (scsicmd[1] & 0xe0)
+		/* PIO multi not supported yet */
+		goto invalid_fld;
+
 	/*
 	 * 12 and 16 byte CDBs use different offsets to
 	 * provide the various register values.

include/linux/ata.h

@@ -204,7 +204,6 @@ enum ata_tf_protocols {
 	ATA_PROT_UNKNOWN,	/* unknown/invalid */
 	ATA_PROT_NODATA,	/* no data */
 	ATA_PROT_PIO,		/* PIO single sector */
-	ATA_PROT_PIO_MULT,	/* PIO multiple sector */
 	ATA_PROT_DMA,		/* DMA */
 	ATA_PROT_ATAPI,		/* packet command, PIO data xfer*/
 	ATA_PROT_ATAPI_NODATA,	/* packet command, no data */