ide: add ->dma_timer_expiry method and remove ->dma_exec_cmd one (v2)

* Rename dma_timer_expiry() to ide_dma_sff_timer_expiry() and export it.

* Add ->dma_timer_expiry method and use it to set hwif->expiry for
  ATA_PROT_DMA protocol in do_rw_taskfile().

* Initialize ->dma_timer_expiry to ide_dma_sff_timer_expiry() for SFF hosts.

* Move setting hwif->expiry from ide_execute_command() to its users and drop
  'expiry' argument.

* Use ide_execute_command() instead of ->dma_exec_cmd in do_rw_taskfile().

* Remove ->dma_exec_cmd method and its implementations.

* Unexport ide_execute_command() and ide_dma_intr().

v2:
* Fix CONFIG_BLK_DEV_IDEDMA=n build (noticed by Randy Dunlap).

* Fix *dma_expiry naming (suggested by Sergei Shtylyov).

There should be no functional changes caused by this patch.

Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-27 12:46:47 +01:00
parent 60c0cd02b2
commit 22117d6eaa
23 changed files with 33 additions and 71 deletions

View file

@ -504,11 +504,11 @@ static const struct ide_port_ops ali_port_ops = {
static const struct ide_dma_ops ali_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ali15x3_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};

View file

@ -290,13 +290,6 @@ static void auide_dma_start(ide_drive_t *drive )
}
static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
/* issue cmd to drive */
ide_execute_command(drive, command, &ide_dma_intr,
(2*WAIT_CMD), NULL);
}
static int auide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
{
if (auide_build_dmatable(drive, cmd) == 0) {
@ -356,7 +349,6 @@ static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize, u32 de
static const struct ide_dma_ops au1xxx_dma_ops = {
.dma_host_set = auide_dma_host_set,
.dma_setup = auide_dma_setup,
.dma_exec_cmd = auide_dma_exec_cmd,
.dma_start = auide_dma_start,
.dma_end = auide_dma_end,
.dma_test_irq = auide_dma_test_irq,

View file

@ -379,11 +379,11 @@ static const struct ide_port_ops cmd64x_port_ops = {
static const struct ide_dma_ops cmd64x_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = cmd64x_dma_end,
.dma_test_irq = cmd64x_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};
@ -391,11 +391,11 @@ static const struct ide_dma_ops cmd64x_dma_ops = {
static const struct ide_dma_ops cmd646_rev1_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = cmd646_1_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};
@ -403,11 +403,11 @@ static const struct ide_dma_ops cmd646_rev1_dma_ops = {
static const struct ide_dma_ops cmd648_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = cmd648_dma_end,
.dma_test_irq = cmd648_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};

View file

@ -231,11 +231,11 @@ static const struct ide_port_ops cs5536_port_ops = {
static const struct ide_dma_ops cs5536_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = cs5536_dma_start,
.dma_end = cs5536_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
};

View file

@ -1418,11 +1418,11 @@ static const struct ide_port_ops hpt3xx_port_ops = {
static const struct ide_dma_ops hpt37x_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = hpt374_dma_end,
.dma_test_irq = hpt374_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};
@ -1430,11 +1430,11 @@ static const struct ide_dma_ops hpt37x_dma_ops = {
static const struct ide_dma_ops hpt370_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = hpt370_dma_start,
.dma_end = hpt370_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = hpt370_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};
@ -1442,11 +1442,11 @@ static const struct ide_dma_ops hpt370_dma_ops = {
static const struct ide_dma_ops hpt36x_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = hpt366_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};

View file

@ -351,12 +351,6 @@ static int icside_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
return 0;
}
static void icside_dma_exec_cmd(ide_drive_t *drive, u8 cmd)
{
/* issue cmd to drive */
ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD, NULL);
}
static int icside_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
@ -380,7 +374,6 @@ static int icside_dma_init(ide_hwif_t *hwif, const struct ide_port_info *d)
static const struct ide_dma_ops icside_v6_dma_ops = {
.dma_host_set = icside_dma_host_set,
.dma_setup = icside_dma_setup,
.dma_exec_cmd = icside_dma_exec_cmd,
.dma_start = icside_dma_start,
.dma_end = icside_dma_end,
.dma_test_irq = icside_dma_test_irq,

View file

@ -691,8 +691,9 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd)
if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
if (drive->dma)
drive->waiting_for_dma = 0;
hwif->expiry = expiry;
ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc,
timeout, expiry);
timeout);
return ide_started;
} else {
ide_execute_pkt_cmd(drive);

View file

@ -224,7 +224,7 @@ int ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
EXPORT_SYMBOL_GPL(ide_dma_setup);
/**
* dma_timer_expiry - handle a DMA timeout
* ide_dma_sff_timer_expiry - handle a DMA timeout
* @drive: Drive that timed out
*
* An IDE DMA transfer timed out. In the event of an error we ask
@ -237,7 +237,7 @@ EXPORT_SYMBOL_GPL(ide_dma_setup);
* This can occur if an interrupt is lost or due to hang or bugs.
*/
static int dma_timer_expiry(ide_drive_t *drive)
int ide_dma_sff_timer_expiry(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif);
@ -261,14 +261,7 @@ static int dma_timer_expiry(ide_drive_t *drive)
return 0; /* Status is unknown -- reset the bus */
}
void ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
/* issue cmd to drive */
ide_execute_command(drive, command, &ide_dma_intr, 2 * WAIT_CMD,
dma_timer_expiry);
}
EXPORT_SYMBOL_GPL(ide_dma_exec_cmd);
EXPORT_SYMBOL_GPL(ide_dma_sff_timer_expiry);
void ide_dma_start(ide_drive_t *drive)
{
@ -342,10 +335,10 @@ EXPORT_SYMBOL_GPL(ide_dma_test_irq);
const struct ide_dma_ops sff_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
.dma_sff_read_status = ide_dma_sff_read_status,

View file

@ -110,7 +110,6 @@ ide_startstop_t ide_dma_intr(ide_drive_t *drive)
}
return ide_error(drive, "dma_intr", stat);
}
EXPORT_SYMBOL_GPL(ide_dma_intr);
int ide_dma_good_drive(ide_drive_t *drive)
{

View file

@ -454,7 +454,6 @@ EXPORT_SYMBOL(ide_set_handler);
* @command: command byte to write
* @handler: handler for next phase
* @timeout: timeout for command
* @expiry: handler to run on timeout
*
* Helper function to issue an IDE command. This handles the
* atomicity requirements, command timing and ensures that the
@ -463,13 +462,11 @@ EXPORT_SYMBOL(ide_set_handler);
*/
void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
unsigned timeout, ide_expiry_t *expiry)
unsigned timeout)
{
ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
hwif->expiry = expiry;
spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout);
hwif->tp_ops->exec_command(hwif, cmd);
@ -482,7 +479,6 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
ndelay(400);
spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL(ide_execute_command);
void ide_execute_pkt_cmd(ide_drive_t *drive)
{

View file

@ -98,14 +98,16 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
if (handler == NULL)
handler = task_no_data_intr;
ide_execute_command(drive, tf->command, handler,
WAIT_WORSTCASE, NULL);
WAIT_WORSTCASE);
return ide_started;
case ATA_PROT_DMA:
if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 ||
ide_build_sglist(drive, cmd) == 0 ||
dma_ops->dma_setup(drive, cmd))
return ide_stopped;
dma_ops->dma_exec_cmd(drive, tf->command);
hwif->expiry = dma_ops->dma_timer_expiry;
ide_execute_command(drive, tf->command, ide_dma_intr,
2 * WAIT_CMD);
dma_ops->dma_start(drive);
default:
return ide_started;

View file

@ -508,10 +508,10 @@ static void it821x_quirkproc(ide_drive_t *drive)
static struct ide_dma_ops it821x_pass_through_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = it821x_dma_start,
.dma_end = it821x_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
.dma_sff_read_status = ide_dma_sff_read_status,

View file

@ -301,11 +301,11 @@ static const struct ide_port_ops ns87415_port_ops = {
static const struct ide_dma_ops ns87415_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ns87415_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = ns87415_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = superio_dma_sff_read_status,
};

View file

@ -331,11 +331,11 @@ static const struct ide_port_ops pdc2026x_port_ops = {
static const struct ide_dma_ops pdc20246_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = pdc202xx_dma_test_irq,
.dma_lost_irq = pdc202xx_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = pdc202xx_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};
@ -343,11 +343,11 @@ static const struct ide_dma_ops pdc20246_dma_ops = {
static const struct ide_dma_ops pdc2026x_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = pdc202xx_dma_start,
.dma_end = pdc202xx_dma_end,
.dma_test_irq = pdc202xx_dma_test_irq,
.dma_lost_irq = pdc202xx_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = pdc202xx_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};

View file

@ -1527,13 +1527,6 @@ static int pmac_ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
return 0;
}
static void
pmac_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
/* issue cmd to drive */
ide_execute_command(drive, command, &ide_dma_intr, 2*WAIT_CMD, NULL);
}
/*
* Kick the DMA controller into life after the DMA command has been issued
* to the drive.
@ -1654,7 +1647,6 @@ pmac_ide_dma_lost_irq (ide_drive_t *drive)
static const struct ide_dma_ops pmac_dma_ops = {
.dma_host_set = pmac_ide_dma_host_set,
.dma_setup = pmac_ide_dma_setup,
.dma_exec_cmd = pmac_ide_dma_exec_cmd,
.dma_start = pmac_ide_dma_start,
.dma_end = pmac_ide_dma_end,
.dma_test_irq = pmac_ide_dma_test_irq,

View file

@ -286,11 +286,11 @@ static const struct ide_port_ops sc1200_port_ops = {
static const struct ide_dma_ops sc1200_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = sc1200_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};

View file

@ -868,12 +868,12 @@ static const struct ide_port_ops scc_port_ops = {
static const struct ide_dma_ops scc_dma_ops = {
.dma_host_set = scc_dma_host_set,
.dma_setup = scc_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = scc_dma_start,
.dma_end = scc_dma_end,
.dma_test_irq = scc_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timeout = ide_dma_timeout,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_sff_read_status = scc_dma_sff_read_status,
};

View file

@ -711,10 +711,10 @@ static const struct ide_port_ops sil_sata_port_ops = {
static const struct ide_dma_ops sil_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = siimage_dma_test_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
.dma_sff_read_status = ide_dma_sff_read_status,

View file

@ -293,11 +293,11 @@ static const struct ide_port_ops sl82c105_port_ops = {
static const struct ide_dma_ops sl82c105_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = sl82c105_dma_start,
.dma_end = sl82c105_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = sl82c105_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = sl82c105_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};

View file

@ -182,11 +182,11 @@ static const struct ide_port_ops tc86c001_port_ops = {
static const struct ide_dma_ops tc86c001_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = tc86c001_dma_start,
.dma_end = ide_dma_end,
.dma_test_irq = ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = ide_dma_sff_read_status,
};

View file

@ -176,11 +176,6 @@ static void trm290_selectproc (ide_drive_t *drive)
trm290_prepare_drive(drive, !!(drive->dev_flags & IDE_DFLAG_USING_DMA));
}
static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
ide_execute_command(drive, command, &ide_dma_intr, WAIT_CMD, NULL);
}
static int trm290_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
{
ide_hwif_t *hwif = drive->hwif;
@ -315,7 +310,6 @@ static const struct ide_port_ops trm290_port_ops = {
static struct ide_dma_ops trm290_dma_ops = {
.dma_host_set = trm290_dma_host_set,
.dma_setup = trm290_dma_setup,
.dma_exec_cmd = trm290_dma_exec_cmd,
.dma_start = trm290_dma_start,
.dma_end = trm290_dma_end,
.dma_test_irq = trm290_dma_test_irq,

View file

@ -627,11 +627,11 @@ static const struct ide_port_ops tx4939ide_port_ops = {
static const struct ide_dma_ops tx4939ide_dma_ops = {
.dma_host_set = tx4939ide_dma_host_set,
.dma_setup = tx4939ide_dma_setup,
.dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = ide_dma_start,
.dma_end = tx4939ide_dma_end,
.dma_test_irq = tx4939ide_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
.dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_timeout = ide_dma_timeout,
.dma_sff_read_status = tx4939ide_dma_sff_read_status,
};

View file

@ -715,11 +715,11 @@ struct ide_port_ops {
struct ide_dma_ops {
void (*dma_host_set)(struct ide_drive_s *, int);
int (*dma_setup)(struct ide_drive_s *, struct ide_cmd *);
void (*dma_exec_cmd)(struct ide_drive_s *, u8);
void (*dma_start)(struct ide_drive_s *);
int (*dma_end)(struct ide_drive_s *);
int (*dma_test_irq)(struct ide_drive_s *);
void (*dma_lost_irq)(struct ide_drive_s *);
int (*dma_timer_expiry)(struct ide_drive_s *);
void (*dma_timeout)(struct ide_drive_s *);
/*
* The following method is optional and only required to be
@ -1138,8 +1138,7 @@ void ide_kill_rq(ide_drive_t *, struct request *);
void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int,
ide_expiry_t *);
void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int);
void ide_execute_pkt_cmd(ide_drive_t *);
@ -1453,10 +1452,10 @@ int config_drive_for_dma(ide_drive_t *);
int ide_build_dmatable(ide_drive_t *, struct ide_cmd *);
void ide_dma_host_set(ide_drive_t *, int);
int ide_dma_setup(ide_drive_t *, struct ide_cmd *);
void ide_dma_exec_cmd(ide_drive_t *, u8);
extern void ide_dma_start(ide_drive_t *);
int ide_dma_end(ide_drive_t *);
int ide_dma_test_irq(ide_drive_t *);
int ide_dma_sff_timer_expiry(ide_drive_t *);
u8 ide_dma_sff_read_status(ide_hwif_t *);
extern const struct ide_dma_ops sff_dma_ops;
#else
@ -1477,6 +1476,7 @@ static inline void ide_dma_on(ide_drive_t *drive) { ; }
static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; }
static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; }
static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; }
static inline int ide_build_sglist(ide_drive_t *drive,