From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> Subject: [PATCH] ide: remove ->data_phase field from ide_hwif_t * Always use hwif->task->data_phase and remove ->data_phase field from ide_hwif_t. * Remove superfluous REQ_TYPE_ATA_TASKFILE check from ide_pio_datablock() while at it. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> --- drivers/ide/ide-disk.c | 3 --- drivers/ide/ide-io.c | 5 +---- drivers/ide/ide-park.c | 2 +- drivers/ide/ide-taskfile.c | 18 ++++++++---------- include/linux/ide.h | 3 --- 5 files changed, 10 insertions(+), 21 deletions(-) Index: b/drivers/ide/ide-disk.c =================================================================== --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -160,8 +160,6 @@ static ide_startstop_t __ide_do_rw_disk( task.tf_flags |= IDE_TFLAG_WRITE; ide_tf_set_cmd(drive, &task, dma); - if (!dma) - hwif->data_phase = task.data_phase; task.rq = rq; rc = do_rw_taskfile(drive, &task); @@ -170,7 +168,6 @@ static ide_startstop_t __ide_do_rw_disk( /* fallback to PIO */ task.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK; ide_tf_set_cmd(drive, &task, 0); - hwif->data_phase = task.data_phase; ide_init_sg_cmd(drive, rq); rc = do_rw_taskfile(drive, &task); } Index: b/drivers/ide/ide-io.c =================================================================== --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -306,13 +306,10 @@ EXPORT_SYMBOL_GPL(ide_init_sg_cmd); static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, struct request *rq) { - ide_hwif_t *hwif = drive->hwif; ide_task_t *task = rq->special; if (task) { - hwif->data_phase = task->data_phase; - - switch (hwif->data_phase) { + switch (task->data_phase) { case TASKFILE_MULTI_OUT: case TASKFILE_OUT: case TASKFILE_MULTI_IN: Index: b/drivers/ide/ide-park.c =================================================================== --- a/drivers/ide/ide-park.c +++ b/drivers/ide/ide-park.c @@ -81,7 +81,7 @@ ide_startstop_t ide_do_park_unpark(ide_d task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE; task.rq = rq; - drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA; + task.data_phase = TASKFILE_NO_DATA; return do_rw_taskfile(drive, &task); } Index: b/drivers/ide/ide-taskfile.c =================================================================== --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -261,21 +261,18 @@ static void ide_pio_multi(ide_drive_t *d static void ide_pio_datablock(ide_drive_t *drive, struct request *rq, unsigned int write) { + ide_task_t *task = &drive->hwif->task; u8 saved_io_32bit = drive->io_32bit; if (rq->bio) /* fs request */ rq->errors = 0; - if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { - ide_task_t *task = rq->special; - - if (task->tf_flags & IDE_TFLAG_IO_16BIT) - drive->io_32bit = 0; - } + if (task->tf_flags & IDE_TFLAG_IO_16BIT) + drive->io_32bit = 0; touch_softlockup_watchdog(); - switch (drive->hwif->data_phase) { + switch (task->data_phase) { case TASKFILE_MULTI_IN: case TASKFILE_MULTI_OUT: ide_pio_multi(drive, rq, write); @@ -293,9 +290,10 @@ static ide_startstop_t task_error(ide_dr { if (rq->bio) { ide_hwif_t *hwif = drive->hwif; + ide_task_t *task = &hwif->task; int sectors = hwif->nsect - hwif->nleft; - switch (hwif->data_phase) { + switch (task->data_phase) { case TASKFILE_IN: if (hwif->nleft) break; @@ -427,14 +425,14 @@ static ide_startstop_t task_out_intr (id static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq) { - ide_hwif_t *hwif = drive->hwif; + ide_task_t *task = &drive->hwif->task; ide_startstop_t startstop; if (ide_wait_stat(&startstop, drive, ATA_DRQ, drive->bad_wstat, WAIT_DRQ)) { printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n", drive->name, - hwif->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "", + task->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "", (drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : ""); return startstop; } Index: b/include/linux/ide.h =================================================================== --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -767,9 +767,6 @@ typedef struct hwif_s { int sg_nents; /* Current number of entries in it */ int sg_dma_direction; /* dma transfer direction */ - /* data phase of the active command (currently only valid for PIO/DMA) */ - int data_phase; - struct ide_task_s task; /* current command */ unsigned int nsect; -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html