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Commit d8b81b80 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

libata: kill unused ata_flush_cache() 



ata_flush_code() hasn't been in use for quite some time now.  Kill it.

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 03faab78

drivers/ata/libata-core.c

+0 −26
Original line number Diff line number Diff line
@@ -4800,32 +4800,6 @@ int ata_link_offline(struct ata_link *link) 
	return 0;

}



int ata_flush_cache(struct ata_device *dev)

{

	unsigned int err_mask;

	u8 cmd;



	if (!ata_try_flush_cache(dev))

		return 0;



	if (dev->flags & ATA_DFLAG_FLUSH_EXT)

		cmd = ATA_CMD_FLUSH_EXT;

	else

		cmd = ATA_CMD_FLUSH;



	/* This is wrong. On a failed flush we get back the LBA of the lost

	   sector and we should (assuming it wasn't aborted as unknown) issue

	   a further flush command to continue the writeback until it

	   does not error */

	err_mask = ata_do_simple_cmd(dev, cmd);

	if (err_mask) {

		ata_dev_printk(dev, KERN_ERR, "failed to flush cache\n");

		return -EIO;

	}



	return 0;

}



#ifdef CONFIG_PM

static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,

			       unsigned int action, unsigned int ehi_flags,

drivers/ata/libata.h

+0 −1
Original line number Diff line number Diff line
@@ -96,7 +96,6 @@ extern void ata_qc_issue(struct ata_queued_cmd *qc); 
extern void __ata_qc_complete(struct ata_queued_cmd *qc);

extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);

extern void swap_buf_le16(u16 *buf, unsigned int buf_words);

extern int ata_flush_cache(struct ata_device *dev);

extern void ata_dev_init(struct ata_device *dev);

extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp);

extern int sata_link_init_spd(struct ata_link *link);