From 127102aea2ea9ec4e9ca233e2b1a75c8d3b058c4 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 7 Apr 2008 22:47:21 +0900 Subject: 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 --- drivers/ata/libata.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/ata/libata.h') 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__ */ -- cgit v1.2.1