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ide: add ide_for_each_present_dev() iterator 

* Add ide_for_each_present_dev() iterator and convert IDE code to use it.

* Do some drive-by CodingStyle fixups in ide-acpi.c while at it.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-24 23:22:41 +01:00
parent 8cd3c60562
commit 7ed5b157d9
4 changed files with 29 additions and 48 deletions
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30
drivers/ide/ide-acpi.c
View File

@ -608,17 +608,17 @@ void ide_acpi_set_state(ide_hwif_t *hwif, int on)
DEBPRINT("no ACPI data for %s\n", hwif->name);
return;
}
/* channel first and then drives for power on and verse versa for power off */
if (on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0);
ide_port_for_each_dev(i, drive, hwif) {
if (drive->acpidata->obj_handle &&
(drive->dev_flags & IDE_DFLAG_PRESENT)) {
ide_port_for_each_present_dev(i, drive, hwif) {
if (drive->acpidata->obj_handle)
acpi_bus_set_power(drive->acpidata->obj_handle,
on? ACPI_STATE_D0: ACPI_STATE_D3);
}
on ? ACPI_STATE_D0 : ACPI_STATE_D3);
}
if (!on)
acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
}
@ -667,12 +667,9 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
hwif->devices[1]->acpidata = &hwif->acpidata->slave;
/* get _ADR info for each device */
ide_port_for_each_dev(i, drive, hwif) {
ide_port_for_each_present_dev(i, drive, hwif) {
acpi_handle dev_handle;
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
drive->name, hwif->channel, drive->dn & 1);
@ -685,13 +682,8 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
drive->acpidata->obj_handle = dev_handle;
}
/*
* Send IDENTIFY for each drive
*/
ide_port_for_each_dev(i, drive, hwif) {
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
/* send IDENTIFY for each device */
ide_port_for_each_present_dev(i, drive, hwif) {
err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff);
if (err)
DEBPRINT("identify device %s failed (%d)\n",
@ -711,9 +703,7 @@ void ide_acpi_port_init_devices(ide_hwif_t *hwif)
ide_acpi_get_timing(hwif);
ide_acpi_push_timing(hwif);
ide_port_for_each_dev(i, drive, hwif) {
if (drive->dev_flags & IDE_DFLAG_PRESENT)
/* Execute ACPI startup code */
ide_acpi_exec_tfs(drive);
ide_port_for_each_present_dev(i, drive, hwif) {
ide_acpi_exec_tfs(drive);
}
}

5
drivers/ide/ide-iops.c
View File

@ -1103,9 +1103,8 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE);
timeout = jiffies;
ide_port_for_each_dev(i, tdrive, hwif) {
if (tdrive->dev_flags & IDE_DFLAG_PRESENT &&
tdrive->dev_flags & IDE_DFLAG_PARKED &&
ide_port_for_each_present_dev(i, tdrive, hwif) {
if ((tdrive->dev_flags & IDE_DFLAG_PARKED) &&
time_after(tdrive->sleep, timeout))
timeout = tdrive->sleep;
}

38
drivers/ide/ide-probe.c
View File

@ -825,22 +825,18 @@ static void ide_port_tune_devices(ide_hwif_t *hwif)
ide_drive_t *drive;
int i;
ide_port_for_each_dev(i, drive, hwif) {
if (drive->dev_flags & IDE_DFLAG_PRESENT) {
if (port_ops && port_ops->quirkproc)
port_ops->quirkproc(drive);
}
ide_port_for_each_present_dev(i, drive, hwif) {
if (port_ops && port_ops->quirkproc)
port_ops->quirkproc(drive);
}
ide_port_for_each_dev(i, drive, hwif) {
if (drive->dev_flags & IDE_DFLAG_PRESENT) {
ide_set_max_pio(drive);
ide_port_for_each_present_dev(i, drive, hwif) {
ide_set_max_pio(drive);
drive->dev_flags |= IDE_DFLAG_NICE1;
drive->dev_flags |= IDE_DFLAG_NICE1;
if (hwif->dma_ops)
ide_set_dma(drive);
}
if (hwif->dma_ops)
ide_set_dma(drive);
}
}
@ -911,10 +907,7 @@ static int ide_port_setup_devices(ide_hwif_t *hwif)
int i, j = 0;
mutex_lock(&ide_cfg_mtx);
ide_port_for_each_dev(i, drive, hwif) {
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
ide_port_for_each_present_dev(i, drive, hwif) {
if (ide_init_queue(drive)) {
printk(KERN_ERR "ide: failed to init %s\n",
drive->name);
@ -1139,13 +1132,10 @@ static void hwif_register_devices(ide_hwif_t *hwif)
ide_drive_t *drive;
unsigned int i;
ide_port_for_each_dev(i, drive, hwif) {
ide_port_for_each_present_dev(i, drive, hwif) {
struct device *dev = &drive->gendev;
int ret;
if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
dev_set_name(dev, "%u.%u", hwif->index, i);
dev->parent = &hwif->gendev;
dev->bus = &ide_bus_type;
@ -1610,11 +1600,9 @@ static void __ide_port_unregister_devices(ide_hwif_t *hwif)
ide_drive_t *drive;
int i;
ide_port_for_each_dev(i, drive, hwif) {
if (drive->dev_flags & IDE_DFLAG_PRESENT) {
device_unregister(&drive->gendev);
wait_for_completion(&drive->gendev_rel_comp);
}
ide_port_for_each_present_dev(i, drive, hwif) {
device_unregister(&drive->gendev);
wait_for_completion(&drive->gendev_rel_comp);
}
}

4
include/linux/ide.h
View File

@ -1609,6 +1609,10 @@ static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
#define ide_port_for_each_dev(i, dev, port) \
for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)
#define ide_port_for_each_present_dev(i, dev, port) \
for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \
if ((dev)->dev_flags & IDE_DFLAG_PRESENT)
#define ide_host_for_each_port(i, port, host) \
for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++)