libata: move ata_read_log_page to libata-core.c

It is core functionality, and only one of the users is in the EH code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 0 insertions, 64 deletions

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 7e33e200aae5..b70bcf6d2914 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1488,70 +1488,6 @@ static const char *ata_err_string(unsigned int err_mask)
 }
 
 /**
- *	ata_read_log_page - read a specific log page
- *	@dev: target device
- *	@log: log to read
- *	@page: page to read
- *	@buf: buffer to store read page
- *	@sectors: number of sectors to read
- *
- *	Read log page using READ_LOG_EXT command.
- *
- *	LOCKING:
- *	Kernel thread context (may sleep).
- *
- *	RETURNS:
- *	0 on success, AC_ERR_* mask otherwise.
- */
-unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
-			       u8 page, void *buf, unsigned int sectors)
-{
-	unsigned long ap_flags = dev->link->ap->flags;
-	struct ata_taskfile tf;
-	unsigned int err_mask;
-	bool dma = false;
-
-	DPRINTK("read log page - log 0x%x, page 0x%x\n", log, page);
-
-	/*
-	 * Return error without actually issuing the command on controllers
-	 * which e.g. lockup on a read log page.
-	 */
-	if (ap_flags & ATA_FLAG_NO_LOG_PAGE)
-		return AC_ERR_DEV;
-
-retry:
-	ata_tf_init(dev, &tf);
-	if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id) &&
-	    !(dev->horkage & ATA_HORKAGE_NO_NCQ_LOG)) {
-		tf.command = ATA_CMD_READ_LOG_DMA_EXT;
-		tf.protocol = ATA_PROT_DMA;
-		dma = true;
-	} else {
-		tf.command = ATA_CMD_READ_LOG_EXT;
-		tf.protocol = ATA_PROT_PIO;
-		dma = false;
-	}
-	tf.lbal = log;
-	tf.lbam = page;
-	tf.nsect = sectors;
-	tf.hob_nsect = sectors >> 8;
-	tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_LBA48 | ATA_TFLAG_DEVICE;
-
-	err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
-				     buf, sectors * ATA_SECT_SIZE, 0);
-
-	if (err_mask && dma) {
-		dev->horkage |= ATA_HORKAGE_NO_NCQ_LOG;
-		ata_dev_warn(dev, "READ LOG DMA EXT failed, trying unqueued\n");
-		goto retry;
-	}
-
-	DPRINTK("EXIT, err_mask=%x\n", err_mask);
-	return err_mask;
-}
-
-/**
  *	ata_eh_read_log_10h - Read log page 10h for NCQ error details
  *	@dev: Device to read log page 10h from
  *	@tag: Resulting tag of the failed command