From: Bartlomiej Zolnierkiewicz Subject: [PATCH] ide: use IDE_TFLAG_LBA48 for REQ_TYPE_ATA_TASKFILE requests * Use IDE_TFLAG_LBA48 for REQ_TYPE_ATA_TASKFILE requests in ide_end_drive_cmd() to decide whether we need to read HOB taskfile registers. * Update execute_drive_cmd() accordingly. This is a preparation for the next patch which removes unnecessary writes to HOB taskfile registers for some ATA commands. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-io.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) Index: b/drivers/ide/ide-io.c =================================================================== --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -374,7 +374,7 @@ void ide_end_drive_cmd (ide_drive_t *dri tf->device = hwif->INB(IDE_SELECT_REG); tf->status = stat; - if (drive->addressing == 1) { + if (args->tf_flags & IDE_TFLAG_LBA48) { hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG); tf->hob_feature = hwif->INB(IDE_FEATURE_REG); tf->hob_nsect = hwif->INB(IDE_NSECTOR_REG); @@ -872,13 +872,15 @@ static ide_startstop_t execute_drive_cmd } task->tf_flags |= IDE_TFLAG_OUT_DEVICE; + if (drive->addressing == 1) + task->tf_flags |= IDE_TFLAG_LBA48; if (task->tf_flags & IDE_TFLAG_FLAGGED) return flagged_taskfile(drive, task); task->tf_flags |= IDE_TFLAG_OUT_TF; - if (drive->addressing == 1) - task->tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB); + if (task->tf_flags & IDE_TFLAG_LBA48) + task->tf_flags |= IDE_TFLAG_OUT_HOB; return do_rw_taskfile(drive, task); }