diff options
| author |   Tejun Heo <htejun@gmail.com> | 2006-04-02 17:54:46 +0900 |
|---|---|---|
| committer |   Jeff Garzik <jeff@garzik.org> | 2006-04-02 10:02:57 -0400 |
| commit | 002c8054fa8d0f1afce2b0c728be32d338b9293a (patch) | |
| tree | 3ca1bddacad6bb08b8f9b27ef6ebfbdb4cee4d46 /include/linux | |
| parent | [PATCH] libata: preserve SATA SPD setting over hard resets (diff) | |
[PATCH] libata: implement ata_dev_absent()
For the time being we cannot use ata_dev_present() as it was renamed
to ata_dev_enabled() but we still need presence test. Implement
negation of the test. Conveniently, the negated result is needed in
more places. This is suggested by Jeff Garzik.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/libata.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index c6883ba8cba9..0f8e3720edd9 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -682,6 +682,11 @@ static inline unsigned int ata_class_disabled(unsigned int class) return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP; } +static inline unsigned int ata_class_absent(unsigned int class) +{ + return !ata_class_enabled(class) && !ata_class_disabled(class); +} + static inline unsigned int ata_dev_enabled(const struct ata_device *dev) { return ata_class_enabled(dev->class); @@ -692,6 +697,11 @@ static inline unsigned int ata_dev_disabled(const struct ata_device *dev) return ata_class_disabled(dev->class); } +static inline unsigned int ata_dev_absent(const struct ata_device *dev) +{ + return ata_class_absent(dev->class); +} + static inline u8 ata_chk_status(struct ata_port *ap) { return ap->ops->check_status(ap); |