ide: sanitize handling of IDE_HFLAG_NO_SET_MODE host flag

* Check for IDE_HFLAG_NO_SET_MODE host flag in ide_set_pio(),
  ide_set_[pio,dma]_mode(), ide_set_xfer_rate() and set_pio_mode().

* Remove no longer needed IDE_HFLAG_NO_SET_MODE host flag checking
  from ide_tune_dma().

* Remove superfluous ->set_pio_mode checking from do_special().

This is a part of preparations for adding 'struct ide_port_ops'.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 31e5afadb7e9..51d181ee9cf7 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -726,10 +726,6 @@ static ide_startstop_t do_special (ide_drive_t *drive)
                 s->b.set_tune = 0;
 
                 if (set_pio_mode_abuse(drive->hwif, req_pio)) {
-
-                        if (hwif->set_pio_mode == NULL)
-                                return ide_stopped;
-
                         /*
                          * take ide_lock for drive->[no_]unmask/[no_]io_32bit
                          */