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ide: remove try_to_flush_leftover_data()

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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: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-07-15 21:21:47 +02:00
parent 931ee0dc5c
commit 57279a7a40
1 changed files with 5 additions and 27 deletions
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32
drivers/ide/ide-io.c
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@ -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);