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| author | Tejun Heo <htejun@gmail.com> | 2008-04-07 22:47:21 +0900 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-17 15:44:24 -0400 |
| commit | 127102aea2ea9ec4e9ca233e2b1a75c8d3b058c4 (patch) | |
| tree | 92fb528eac658adbc7307a009bd8a7558db2658a /drivers/ata/libata.h | |
| parent | 350756f6dab6d37ef9ed3f18dec520e88969ddac (diff) | |
| download | kernel-common-127102aea2ea9ec4e9ca233e2b1a75c8d3b058c4.tar.gz kernel-common-127102aea2ea9ec4e9ca233e2b1a75c8d3b058c4.tar.bz2 kernel-common-127102aea2ea9ec4e9ca233e2b1a75c8d3b058c4.zip | |
libata: make SFF support optional
Now that SFF support is completely separated out from the core layer,
it can be made optional. Add CONFIG_ATA_SFF and let SFF drivers
depend on it. If CONFIG_ATA_SFF isn't set, all codes in libata-sff.c
and data structures for SFF support are disabled. This saves good
number of bytes for small systems.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/libata.h')
| -rw-r--r-- | drivers/ata/libata.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 87f54a1db3b0..6b70a624828c 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -42,8 +42,10 @@ static inline int ata_is_builtin_hardreset(ata_reset_fn_t reset) { if (reset == sata_std_hardreset) return 1; +#ifdef CONFIG_ATA_SFF if (reset == sata_sff_hardreset) return 1; +#endif return 0; } @@ -206,9 +208,11 @@ extern int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, extern void ata_eh_finish(struct ata_port *ap); /* libata-sff.c */ +#ifdef CONFIG_ATA_SFF extern void ata_dev_select(struct ata_port *ap, unsigned int device, unsigned int wait, unsigned int can_sleep); extern u8 ata_irq_on(struct ata_port *ap); extern void ata_pio_task(struct work_struct *work); +#endif /* CONFIG_ATA_SFF */ #endif /* __LIBATA_H__ */ |