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, 5 insertions, 4 deletions

diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c
index 5123ea291d07..c7e5c2246b79 100644
--- a/drivers/ide/legacy/ht6560b.c
+++ b/drivers/ide/legacy/ht6560b.c
@@ -120,7 +120,8 @@ static void ht6560b_selectproc (ide_drive_t *drive)
          * Need to enforce prefetch sometimes because otherwise
          * it'll hang (hard).
          */
-        if (drive->media != ide_disk || !drive->present)
+        if (drive->media != ide_disk ||
+            (drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
                 select |= HT_PREFETCH_MODE;
 
         if (select != current_select || timing != current_timing) {
@@ -249,11 +250,11 @@ static void ht_set_prefetch(ide_drive_t *drive, u8 state)
          */
         if (state) {
                 drive->drive_data |= t;   /* enable prefetch mode */
-                drive->no_unmask = 1;
-                drive->unmask = 0;
+                drive->dev_flags |= IDE_DFLAG_NO_UNMASK;
+                drive->dev_flags &= ~IDE_DFLAG_UNMASK;
         } else {
                 drive->drive_data &= ~t;  /* disable prefetch mode */
-                drive->no_unmask = 0;
+                drive->dev_flags &= ~IDE_DFLAG_NO_UNMASK;
         }
 
         spin_unlock_irqrestore(&ht6560b_lock, flags);