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>

1 files changed, 14 insertions, 10 deletions

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 0a2fd3b37ac4..cec744cbbde0 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -647,7 +647,7 @@ u8 eighty_ninty_three (ide_drive_t *drive)
                 return 1;
 
 no_80w:
-        if (drive->udma33_warned == 1)
+        if (drive->dev_flags & IDE_DFLAG_UDMA33_WARNED)
                 return 0;
 
         printk(KERN_WARNING "%s: %s side 80-wire cable detection failed, "
@@ -655,7 +655,7 @@ no_80w:
                             drive->name,
                             hwif->cbl == ATA_CBL_PATA80 ? "drive" : "host");
 
-        drive->udma33_warned = 1;
+        drive->dev_flags |= IDE_DFLAG_UDMA33_WARNED;
 
         return 0;
 }
@@ -711,7 +711,7 @@ int ide_driveid_update(ide_drive_t *drive)
 
         kfree(id);
 
-        if (drive->using_dma && ide_id_dma_bug(drive))
+        if ((drive->dev_flags & IDE_DFLAG_USING_DMA) && ide_id_dma_bug(drive))
                 ide_dma_off(drive);
 
         return 1;
@@ -790,7 +790,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
 
  skip:
 #ifdef CONFIG_BLK_DEV_IDEDMA
-        if (speed >= XFER_SW_DMA_0 && drive->using_dma)
+        if (speed >= XFER_SW_DMA_0 && (drive->dev_flags & IDE_DFLAG_USING_DMA))
                 hwif->dma_ops->dma_host_set(drive, 1);
         else if (hwif->dma_ops) /* check if host supports DMA */
                 ide_dma_off_quietly(drive);
@@ -1016,9 +1016,13 @@ static void ide_disk_pre_reset(ide_drive_t *drive)
         drive->special.all = 0;
         drive->special.b.set_geometry = legacy;
         drive->special.b.recalibrate  = legacy;
+
         drive->mult_count = 0;
-        if (!drive->keep_settings && !drive->using_dma)
+
+        if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 &&
+            (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0)
                 drive->mult_req = 0;
+
         if (drive->mult_req != drive->mult_count)
                 drive->special.b.set_multmode = 1;
 }
@@ -1030,18 +1034,18 @@ static void pre_reset(ide_drive_t *drive)
         if (drive->media == ide_disk)
                 ide_disk_pre_reset(drive);
         else
-                drive->post_reset = 1;
+                drive->dev_flags |= IDE_DFLAG_POST_RESET;
 
-        if (drive->using_dma) {
+        if (drive->dev_flags & IDE_DFLAG_USING_DMA) {
                 if (drive->crc_count)
                         ide_check_dma_crc(drive);
                 else
                         ide_dma_off(drive);
         }
 
-        if (!drive->keep_settings) {
-                if (!drive->using_dma) {
-                        drive->unmask = 0;
+        if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) {
+                if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) {
+                        drive->dev_flags &= ~IDE_DFLAG_UNMASK;
                         drive->io_32bit = 0;
                 }
                 return;