ide: remove drive->driveid

* Factor out HDIO_[OBSOLETE,GET]_IDENTITY ioctls handling
  to ide_get_identity_ioctl().

* Use temporary buffer in ide_get_identity_ioctl() instead
  of accessing drive->id directly.

* Add ide_id_to_hd_driveid() inline to convert raw id into
  struct hd_driveid format (needed on big-endian).

* Use ide_id_to_hd_driveid() in ide_get_identity_ioctl(),
  cleanup ide_fix_driveid() and switch ide to use use raw id.

* Remove no longer needed drive->driveid.

  This leaves us with 3 users of struct hd_driveid in tree:
  - arch/um/drivers/ubd_kern.c
  - drivers/block/xsysace.c
  - drivers/usb/storage/isd200.c

While at it:

* Use ata_id_u{32,64}() and ata_id_has_{dma,lba,iordy}() macros.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 3066d7e75c73..738c007a04d3 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -102,14 +102,14 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
         if (pio_mode != -1) {
                 printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
         } else {
-                pio_mode = drive->driveid->tPIO;
+                pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
                 if (pio_mode > 2) {     /* 2 is maximum allowed tPIO value */
                         pio_mode = 2;
                         overridden = 1;
                 }
 
                 if (id[ATA_ID_FIELD_VALID] & 2) {             /* ATA2? */
-                        if (drive->driveid->capability & 8) { /* IORDY sup? */
+                        if (ata_id_has_iordy(id)) {
                                 if (id[ATA_ID_PIO_MODES] & 7) {
                                         overridden = 0;
                                         if (id[ATA_ID_PIO_MODES] & 4)