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ide: ide_id_has_flush_cache() -> ata_id_flush_enabled()

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* Add ata_id_flush_enabled() inline helper to <linux/ata.h>.

* ide_id_has_flush_cache() -> ata_id_flush_enabled()

  The latter one also checks if the command is marked as
  supported in word 83 and validity of words 83 & 86.

Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-10-10 22:39:30 +02:00
parent 1a4e4d4d2c
commit 4b58f17d7c
4 changed files with 13 additions and 7 deletions
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3
include/linux/ide.h
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@ -1453,9 +1453,6 @@ extern struct mutex ide_cfg_mtx;
extern struct bus_type ide_bus_type;
extern struct class *ide_port_class;
/* check if CACHE FLUSH command is supported (as defined in ATA-6) */
#define ide_id_has_flush_cache(id) ((id)[ATA_ID_CFS_ENABLE_2] & 0x1000)
/* some Maxtor disks have bit 13 defined incorrectly so check bit 10 too */
#define ide_id_has_flush_cache_ext(id) \
(((id)[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400)