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, 11 insertions, 10 deletions

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 2521677e1f48..a1d8c3557a42 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -261,7 +261,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
         ide_expiry_t *expiry;
         unsigned int timeout, temp;
         u16 bcount;
-        u8 stat, ireason, scsi = drive->scsi, dsc = 0;
+        u8 stat, ireason, scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI), dsc = 0;
 
         debug_log("Enter %s - interrupt handler\n", __func__);
 
@@ -494,7 +494,8 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
         }
 
         ireason = ide_read_ireason(drive);
-        if (drive->media == ide_tape && !drive->scsi)
+        if (drive->media == ide_tape &&
+            (drive->dev_flags & IDE_DFLAG_SCSI) == 0)
                 ireason = ide_wait_ireason(drive, ireason);
 
         if ((ireason & ATAPI_COD) == 0 || (ireason & ATAPI_IO)) {
@@ -512,7 +513,7 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
                 timeout = drive->pc_delay;
                 expiry = &ide_delayed_transfer_pc;
         } else {
-                if (drive->scsi) {
+                if (drive->dev_flags & IDE_DFLAG_SCSI) {
                         timeout = ide_scsi_get_timeout(pc);
                         expiry = ide_scsi_expiry;
                 } else {
@@ -544,14 +545,14 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
         struct ide_atapi_pc *pc = drive->pc;
         ide_hwif_t *hwif = drive->hwif;
         u16 bcount;
-        u8 dma = 0;
+        u8 dma = 0, scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI);
 
         /* We haven't transferred any data yet */
         pc->xferred = 0;
         pc->cur_pos = pc->buf;
 
         /* Request to transfer the entire buffer at once */
-        if (drive->media == ide_tape && !drive->scsi)
+        if (drive->media == ide_tape && scsi == 0)
                 bcount = pc->req_xfer;
         else
                 bcount = min(pc->req_xfer, 63 * 1024);
@@ -561,19 +562,19 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
                 ide_dma_off(drive);
         }
 
-        if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) {
-                if (drive->scsi)
+        if ((pc->flags & PC_FLAG_DMA_OK) &&
+            (drive->dev_flags & IDE_DFLAG_USING_DMA)) {
+                if (scsi)
                         hwif->sg_mapped = 1;
                 dma = !hwif->dma_ops->dma_setup(drive);
-                if (drive->scsi)
+                if (scsi)
                         hwif->sg_mapped = 0;
         }
 
         if (!dma)
                 pc->flags &= ~PC_FLAG_DMA_OK;
 
-        ide_pktcmd_tf_load(drive, drive->scsi ? 0 : IDE_TFLAG_OUT_DEVICE,
-                           bcount, dma);
+        ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, dma);
 
         /* Issue the packet command */
         if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {