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Commit e46834cd authored Mar 17, 2006 by Brian King Committed by Jeff Garzik Mar 21, 2006

[PATCH] libata: Add some dummy noop functions



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>

parent f59b0cf8

drivers/scsi/libata-core.c

+3 −0

Original line number	Original line	Diff line number	Diff line
	@@ -2865,6 +2865,8 @@ void ata_qc_prep(struct ata_queued_cmd *qc)
	ata_fill_sg(qc);		ata_fill_sg(qc);
	}		}

			void ata_noop_qc_prep(struct ata_queued_cmd *qc) { }

	/**		/**
	* ata_sg_init_one - Associate command with memory buffer		* ata_sg_init_one - Associate command with memory buffer
	* @qc: Command to be associated		* @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_host_stop);
	EXPORT_SYMBOL_GPL(ata_interrupt);		EXPORT_SYMBOL_GPL(ata_interrupt);
	EXPORT_SYMBOL_GPL(ata_qc_prep);		EXPORT_SYMBOL_GPL(ata_qc_prep);
			EXPORT_SYMBOL_GPL(ata_noop_qc_prep);
	EXPORT_SYMBOL_GPL(ata_bmdma_setup);		EXPORT_SYMBOL_GPL(ata_bmdma_setup);
	EXPORT_SYMBOL_GPL(ata_bmdma_start);		EXPORT_SYMBOL_GPL(ata_bmdma_start);
	EXPORT_SYMBOL_GPL(ata_bmdma_irq_clear);		EXPORT_SYMBOL_GPL(ata_bmdma_irq_clear);

include/linux/libata.h

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -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 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 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_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 unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
	extern void ata_sg_init_one(struct ata_queued_cmd qc, void buf,		extern void ata_sg_init_one(struct ata_queued_cmd qc, void buf,
	unsigned int buflen);		unsigned int buflen);