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libata: kill unused ata_flush_cache()

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

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2008-03-27 19:14:25 +09:00 committed by Jeff Garzik
parent 03faab7827
commit d8b81b8008
2 changed files with 0 additions and 27 deletions
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26
drivers/ata/libata-core.c
View File

@ -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,

1
drivers/ata/libata.h
View File

@ -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);