ide: add device flags
Add 'unsigned long dev_flags' to ide_drive_t and convert bitfields
to IDE_DFLAG_* flags.
While at it:
- IDE_DFLAG_ADDRESSING -> IDE_DFLAG_LBA48
- fixup some comments
- remove needless g->flags zeroing from ide*_probe()
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 237b987..57c7418 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -121,7 +121,8 @@
/* read 512 bytes of id info */
hwif->tp_ops->input_data(drive, NULL, id, SECTOR_SIZE);
- drive->id_read = 1;
+ drive->dev_flags |= IDE_DFLAG_ID_READ;
+
local_irq_enable();
#ifdef DEBUG
printk(KERN_INFO "%s: dumping identify data\n", drive->name);
@@ -153,8 +154,8 @@
printk(KERN_INFO "%s: %s, ", drive->name, m);
- drive->present = 1;
- drive->dead = 0;
+ drive->dev_flags |= IDE_DFLAG_PRESENT;
+ drive->dev_flags &= ~IDE_DFLAG_DEAD;
/*
* Check for an ATAPI device
@@ -172,14 +173,14 @@
printk(KERN_CONT "cdrom or floppy?, assuming ");
if (drive->media != ide_cdrom) {
printk(KERN_CONT "FLOPPY");
- drive->removable = 1;
+ drive->dev_flags |= IDE_DFLAG_REMOVABLE;
break;
}
}
/* Early cdrom models used zero */
type = ide_cdrom;
case ide_cdrom:
- drive->removable = 1;
+ drive->dev_flags |= IDE_DFLAG_REMOVABLE;
#ifdef CONFIG_PPC
/* kludge for Apple PowerBook internal zip */
if (!strstr(m, "CD-ROM") && strstr(m, "ZIP")) {
@@ -195,7 +196,7 @@
break;
case ide_optical:
printk(KERN_CONT "OPTICAL");
- drive->removable = 1;
+ drive->dev_flags |= IDE_DFLAG_REMOVABLE;
break;
default:
printk(KERN_CONT "UNKNOWN (type %d)", type);
@@ -216,7 +217,7 @@
/* CF devices are *not* removable in Linux definition of the term */
if (is_cfa == 0 && (id[ATA_ID_CONFIG] & (1 << 7)))
- drive->removable = 1;
+ drive->dev_flags |= IDE_DFLAG_REMOVABLE;
drive->media = ide_disk;
@@ -226,7 +227,7 @@
err_misc:
kfree(id);
- drive->present = 0;
+ drive->dev_flags &= ~IDE_DFLAG_PRESENT;
return;
}
@@ -426,16 +427,15 @@
ide_hwif_t *hwif = HWIF(drive);
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int rc;
- u8 stat;
+ u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat;
- if (drive->present) {
- /* avoid waiting for inappropriate probes */
- if (drive->media != ide_disk && cmd == ATA_CMD_ID_ATA)
- return 4;
- }
+ /* avoid waiting for inappropriate probes */
+ if (present && drive->media != ide_disk && cmd == ATA_CMD_ID_ATA)
+ return 4;
+
#ifdef DEBUG
printk(KERN_INFO "probing for %s: present=%d, media=%d, probetype=%s\n",
- drive->name, drive->present, drive->media,
+ drive->name, present, drive->media,
(cmd == ATA_CMD_ID_ATA) ? "ATA" : "ATAPI");
#endif
@@ -446,7 +446,7 @@
SELECT_DRIVE(drive);
msleep(50);
- if (ide_read_device(drive) != drive->select.all && !drive->present) {
+ if (ide_read_device(drive) != drive->select.all && present == 0) {
if (drive->select.b.unit != 0) {
/* exit with drive0 selected */
SELECT_DRIVE(&hwif->drives[0]);
@@ -460,7 +460,7 @@
stat = tp_ops->read_status(hwif);
if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) ||
- drive->present || cmd == ATA_CMD_ID_ATAPI) {
+ present || cmd == ATA_CMD_ID_ATAPI) {
/* send cmd and wait */
if ((rc = try_to_identify(drive, cmd))) {
/* failed: try again */
@@ -542,8 +542,8 @@
* and presents things to the user as needed.
*
* Returns: 0 no device was found
- * 1 device was found (note: drive->present might
- * still be 0)
+ * 1 device was found
+ * (note: IDE_DFLAG_PRESENT might still be not set)
*/
static inline u8 probe_for_drive (ide_drive_t *drive)
@@ -559,10 +559,10 @@
* Also note that 0 everywhere means "can't do X"
*/
+ drive->dev_flags &= ~IDE_DFLAG_ID_READ;
+
drive->id = kzalloc(SECTOR_SIZE, GFP_KERNEL);
- drive->id_read = 0;
- if(drive->id == NULL)
- {
+ if (drive->id == NULL) {
printk(KERN_ERR "ide: out of memory for id data.\n");
return 0;
}
@@ -571,14 +571,14 @@
strcpy(m, "UNKNOWN");
/* skip probing? */
- if (!drive->noprobe) {
+ if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0) {
retry:
/* if !(success||timed-out) */
if (do_probe(drive, ATA_CMD_ID_ATA) >= 2)
/* look for ATAPI device */
(void)do_probe(drive, ATA_CMD_ID_ATAPI);
- if (!drive->present)
+ if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
/* drive not found */
return 0;
@@ -588,7 +588,7 @@
}
/* identification failed? */
- if (!drive->id_read) {
+ if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
if (drive->media == ide_disk) {
printk(KERN_INFO "%s: non-IDE drive, CHS=%d/%d/%d\n",
drive->name, drive->cyl,
@@ -598,15 +598,17 @@
} else {
/* nuke it */
printk(KERN_WARNING "%s: Unknown device on bus refused identification. Ignoring.\n", drive->name);
- drive->present = 0;
+ drive->dev_flags &= ~IDE_DFLAG_PRESENT;
}
}
/* drive was found */
}
- if(!drive->present)
+
+ if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
return 0;
+
/* The drive wasn't being helpful. Add generic info only */
- if (drive->id_read == 0) {
+ if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
generic_id(drive);
return 1;
}
@@ -616,7 +618,7 @@
ide_disk_init_mult_count(drive);
}
- return drive->present;
+ return !!(drive->dev_flags & IDE_DFLAG_PRESENT);
}
static void hwif_release_dev(struct device *dev)
@@ -707,7 +709,8 @@
ide_drive_t *drive = &hwif->drives[unit];
/* Ignore disks that we will not probe for later. */
- if (!drive->noprobe || drive->present) {
+ if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0 ||
+ (drive->dev_flags & IDE_DFLAG_PRESENT)) {
SELECT_DRIVE(drive);
hwif->tp_ops->set_irq(hwif, 1);
mdelay(2);
@@ -739,7 +742,7 @@
{
ide_drive_t *dev0 = &dev1->hwif->drives[0];
- if ((dev1->dn & 1) == 0 || dev0->present == 0)
+ if ((dev1->dn & 1) == 0 || (dev0->dev_flags & IDE_DFLAG_PRESENT) == 0)
return;
/* If the models don't match they are not the same product */
@@ -759,7 +762,7 @@
/* Appears to be an IDE flash adapter with decode bugs */
printk(KERN_WARNING "ide-probe: ignoring undecoded slave\n");
- dev1->present = 0;
+ dev1->dev_flags &= ~IDE_DFLAG_PRESENT;
}
EXPORT_SYMBOL_GPL(ide_undecoded_slave);
@@ -772,7 +775,8 @@
BUG_ON(hwif->present);
- if (hwif->drives[0].noprobe && hwif->drives[1].noprobe)
+ if ((hwif->drives[0].dev_flags & IDE_DFLAG_NOPROBE) &&
+ (hwif->drives[1].dev_flags & IDE_DFLAG_NOPROBE))
return -EACCES;
/*
@@ -796,7 +800,7 @@
ide_drive_t *drive = &hwif->drives[unit];
drive->dn = (hwif->channel ? 2 : 0) + unit;
(void) probe_for_drive(drive);
- if (drive->present)
+ if (drive->dev_flags & IDE_DFLAG_PRESENT)
rc = 0;
}
@@ -820,17 +824,19 @@
for (unit = 0; unit < MAX_DRIVES; unit++) {
ide_drive_t *drive = &hwif->drives[unit];
- if (drive->present && port_ops && port_ops->quirkproc)
- port_ops->quirkproc(drive);
+ if (drive->dev_flags & IDE_DFLAG_PRESENT) {
+ if (port_ops && port_ops->quirkproc)
+ port_ops->quirkproc(drive);
+ }
}
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
- if (drive->present) {
+ if (drive->dev_flags & IDE_DFLAG_PRESENT) {
ide_set_max_pio(drive);
- drive->nice1 = 1;
+ drive->dev_flags |= IDE_DFLAG_NICE1;
if (hwif->dma_ops)
ide_set_dma(drive);
@@ -840,10 +846,11 @@
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
- if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT)
- drive->no_io_32bit = 1;
+ if ((hwif->host_flags & IDE_HFLAG_NO_IO_32BIT) ||
+ drive->id[ATA_ID_DWORD_IO])
+ drive->dev_flags |= IDE_DFLAG_NO_IO_32BIT;
else
- drive->no_io_32bit = drive->id[ATA_ID_DWORD_IO] ? 1 : 0;
+ drive->dev_flags &= ~IDE_DFLAG_NO_IO_32BIT;
}
}
@@ -957,7 +964,7 @@
for (i = 0; i < MAX_DRIVES; i++) {
ide_drive_t *drive = &hwif->drives[i];
- if (!drive->present)
+ if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
if (ide_init_queue(drive)) {
@@ -1151,12 +1158,13 @@
ide_hwif_t *hwif = data;
int unit = *part >> PARTN_BITS;
ide_drive_t *drive = &hwif->drives[unit];
- if (!drive->present)
+
+ if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
return NULL;
if (drive->media == ide_disk)
request_module("ide-disk");
- if (drive->scsi)
+ if (drive->dev_flags & IDE_DFLAG_SCSI)
request_module("ide-scsi");
if (drive->media == ide_cdrom || drive->media == ide_optical)
request_module("ide-cd");
@@ -1246,7 +1254,7 @@
ide_remove_drive_from_hwgroup(drive);
kfree(drive->id);
drive->id = NULL;
- drive->present = 0;
+ drive->dev_flags &= ~IDE_DFLAG_PRESENT;
/* Messed up locking ... */
spin_unlock_irq(&ide_lock);
blk_cleanup_queue(drive->queue);
@@ -1325,7 +1333,7 @@
struct device *dev = &drive->gendev;
int ret;
- if (!drive->present)
+ if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
continue;
snprintf(dev->bus_id, BUS_ID_SIZE, "%u.%u", hwif->index, i);
@@ -1352,9 +1360,9 @@
if (hwif->host_flags & IDE_HFLAG_IO_32BIT)
drive->io_32bit = 1;
if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS)
- drive->unmask = 1;
+ drive->dev_flags |= IDE_DFLAG_UNMASK;
if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS)
- drive->no_unmask = 1;
+ drive->dev_flags |= IDE_DFLAG_NO_UNMASK;
if (port_ops && port_ops->init_dev)
port_ops->init_dev(drive);