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Commit b16aabc9 authored by Borislav Petkov's avatar Borislav Petkov Committed by Bartlomiej Zolnierkiewicz
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ide-atapi: start dma in a drive-specific way 



There should be no functionality change resulting from this patch.

Signed-off-by: default avatarBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 06cc2778

drivers/ide/ide-atapi.c

+11 −4
Original line number Diff line number Diff line
@@ -489,7 +489,7 @@ static int ide_delayed_transfer_pc(ide_drive_t *drive) 


static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)

{

	struct ide_atapi_pc *pc = drive->pc;

	struct ide_atapi_pc *uninitialized_var(pc);

	ide_hwif_t *hwif = drive->hwif;

	struct request *rq = hwif->hwgroup->rq;

	ide_expiry_t *expiry;
@@ -518,6 +518,8 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) 
		timeout = rq->timeout;

		expiry  = ide_cd_expiry;

	} else {

		pc = drive->pc;



		cmd_len = ATAPI_MIN_CDB_BYTES;



		/*
@@ -550,10 +552,15 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) 
	ide_set_handler(drive, ide_pc_intr, timeout, expiry);



	/* Begin DMA, if necessary */

	if (dev_is_idecd(drive)) {

		if (drive->dma)

			hwif->dma_ops->dma_start(drive);

	} else {

		if (pc->flags & PC_FLAG_DMA_OK) {

			pc->flags |= PC_FLAG_DMA_IN_PROGRESS;

			hwif->dma_ops->dma_start(drive);

		}

	}



	/* Send the actual packet */

	if ((drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) == 0)