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Commit 57279a7a authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

ide: remove try_to_flush_leftover_data() 



Just use the new & shiny ide_pad_transfer() helper instead.

Also remove the superfluous check for 'drive->media == ide_disk'
while at it (ide_ata_error() is used only for ide_disk devices).

Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 931ee0dc

drivers/ide/ide-io.c

+5 −27
Original line number Diff line number Diff line
@@ -358,31 +358,6 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) 


EXPORT_SYMBOL(ide_end_drive_cmd);



/**

 *	try_to_flush_leftover_data	-	flush junk

 *	@drive: drive to flush

 *

 *	try_to_flush_leftover_data() is invoked in response to a drive

 *	unexpectedly having its DRQ_STAT bit set.  As an alternative to

 *	resetting the drive, this routine tries to clear the condition

 *	by read a sector's worth of data from the drive.  Of course,

 *	this may not help if the drive is *waiting* for data from *us*.

 */

static void try_to_flush_leftover_data (ide_drive_t *drive)

{

	int i = (drive->mult_count ? drive->mult_count : 1) * SECTOR_WORDS;



	if (drive->media != ide_disk)

		return;

	while (i > 0) {

		u32 buffer[16];

		u32 wcount = (i > 16) ? 16 : i;



		i -= wcount;

		drive->hwif->input_data(drive, NULL, buffer, wcount * 4);

	}

}



static void ide_kill_rq(ide_drive_t *drive, struct request *rq)

{

	if (rq->rq_disk) {
@@ -422,8 +397,11 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 
	}



	if ((stat & DRQ_STAT) && rq_data_dir(rq) == READ &&

	    (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0)

		try_to_flush_leftover_data(drive);

	    (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) {

		int nsect = drive->mult_count ? drive->mult_count : 1;



		ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE);

	}



	if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) {

		ide_kill_rq(drive, rq);