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>
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index aaece2c..8757e5e 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -706,9 +706,6 @@
if (!speed)
return 0;
- if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
- return 1;
-
if (ide_set_dma_mode(drive, speed))
return 0;
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 31e5afa..51d181e 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -726,10 +726,6 @@
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
*/
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index fa4c194..c859de7 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -290,7 +290,8 @@
ide_hwif_t *hwif = drive->hwif;
u8 host_pio, pio;
- if (hwif->set_pio_mode == NULL)
+ if (hwif->set_pio_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
return;
BUG_ON(hwif->pio_mask == 0x00);
@@ -343,6 +344,9 @@
{
ide_hwif_t *hwif = drive->hwif;
+ if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
+ return 0;
+
if (hwif->set_pio_mode == NULL)
return -1;
@@ -370,6 +374,9 @@
{
ide_hwif_t *hwif = drive->hwif;
+ if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
+ return 0;
+
if (hwif->set_dma_mode == NULL)
return -1;
@@ -400,7 +407,8 @@
{
ide_hwif_t *hwif = drive->hwif;
- if (hwif->set_dma_mode == NULL)
+ if (hwif->set_dma_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
return -1;
rate = ide_rate_filter(drive, rate);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index f04b53c..d868ca4 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -584,11 +584,13 @@
int set_pio_mode(ide_drive_t *drive, int arg)
{
struct request rq;
+ ide_hwif_t *hwif = drive->hwif;
if (arg < 0 || arg > 255)
return -EINVAL;
- if (drive->hwif->set_pio_mode == NULL)
+ if (hwif->set_pio_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
return -ENOSYS;
if (drive->special.b.set_tune)