ide: make drive->id an union (take 2)

Make drive->id an unnamed union so id can be accessed either by using
'u16 *id' or 'struct hd_driveid *driveid'.  Then convert all existing
drive->id users accordingly (using 'u16 *id' when possible).

This is an intermediate step to make ide 'struct hd_driveid'-free.

While at it:

- Add missing KERN_CONTs in it821x.c.

- Use ATA_ID_WORDS and ATA_ID_*_LEN defines.

- Remove unnecessary checks for drive->id.

- s/drive_table/table/ in ide_in_drive_list().

- Cleanup ide_config_drive_speed() a bit.

- s/drive1/dev1/ & s/drive0/dev0/ in ide_undecoded_slave().

v2:
Fix typo in drivers/ide/ppc/pmac.c. (From Stephen Rothwell)

There should be no functional changes caused by this patch.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c
index 4fd91dcf1dc..6cea984776f 100644
--- a/drivers/ide/arm/palm_bk3710.c
+++ b/drivers/ide/arm/palm_bk3710.c
@@ -213,7 +213,8 @@ static void palm_bk3710_set_dma_mode(ide_drive_t *drive, u8 xferspeed)
 		palm_bk3710_setudmamode(base, is_slave,
 					xferspeed - XFER_UDMA_0);
 	} else {
-		palm_bk3710_setdmamode(base, is_slave, drive->id->eide_dma_min,
+		palm_bk3710_setdmamode(base, is_slave,
+				       drive->id[ATA_ID_EIDE_DMA_MIN],
 				       xferspeed);
 	}
 }