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[PATCH] libata: Add some dummy noop functions

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Add some dummy noop functions for use by libata clients
that do not need to do anything. Future SAS patches will
utilize these functions.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Brian King 2006-03-17 17:04:03 -06:00 committed by Jeff Garzik
parent f59b0cf8a3
commit e46834cd2d
2 changed files with 4 additions and 0 deletions
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3
drivers/scsi/libata-core.c
View file

@ -2865,6 +2865,8 @@ void ata_qc_prep(struct ata_queued_cmd *qc)
ata_fill_sg(qc);
}
void ata_noop_qc_prep(struct ata_queued_cmd *qc) { }
/**
* ata_sg_init_one - Associate command with memory buffer
* @qc: Command to be associated
@ -5063,6 +5065,7 @@ EXPORT_SYMBOL_GPL(ata_port_stop);
EXPORT_SYMBOL_GPL(ata_host_stop);
EXPORT_SYMBOL_GPL(ata_interrupt);
EXPORT_SYMBOL_GPL(ata_qc_prep);
EXPORT_SYMBOL_GPL(ata_noop_qc_prep);
EXPORT_SYMBOL_GPL(ata_bmdma_setup);
EXPORT_SYMBOL_GPL(ata_bmdma_start);
EXPORT_SYMBOL_GPL(ata_bmdma_irq_clear);

1
include/linux/libata.h
View file

@ -543,6 +543,7 @@ extern void ata_port_stop (struct ata_port *ap);
extern void ata_host_stop (struct ata_host_set *host_set);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
unsigned int buflen);