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, 4 insertions, 3 deletions

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index ef2f1504c0d5..2dacd802c72c 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -397,7 +397,7 @@ EXPORT_SYMBOL_GPL(ide_dma_host_set);
 
 void ide_dma_off_quietly(ide_drive_t *drive)
 {
-        drive->using_dma = 0;
+        drive->dev_flags &= ~IDE_DFLAG_USING_DMA;
         ide_toggle_bounce(drive, 0);
 
         drive->hwif->dma_ops->dma_host_set(drive, 0);
@@ -430,7 +430,7 @@ EXPORT_SYMBOL(ide_dma_off);
 
 void ide_dma_on(ide_drive_t *drive)
 {
-        drive->using_dma = 1;
+        drive->dev_flags |= IDE_DFLAG_USING_DMA;
         ide_toggle_bounce(drive, 1);
 
         drive->hwif->dma_ops->dma_host_set(drive, 1);
@@ -727,7 +727,8 @@ static int ide_tune_dma(ide_drive_t *drive)
         ide_hwif_t *hwif = drive->hwif;
         u8 speed;
 
-        if (drive->nodma || ata_id_has_dma(drive->id) == 0)
+        if (ata_id_has_dma(drive->id) == 0 ||
+            (drive->dev_flags & IDE_DFLAG_NODMA))
                 return 0;
 
         /* consult the list of known "bad" drives */