libata: kill ata_id_to_dma_mode()

ata_id_to_dma_mode() isn't quite generic.  The function is basically
privately implemented ata_id_xfermask() combined with hardcoded mode
printing and configuration which are specific to ata_generic.

Kill the function and open code it in generic_set_mode() using generic
xfermode handling functions.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 0 insertions, 43 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index a70ed7b3bc5..ab84772235c 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1288,48 +1288,6 @@ static int ata_hpa_resize(struct ata_device *dev)
 }
 
 /**
- *	ata_id_to_dma_mode	-	Identify DMA mode from id block
- *	@dev: device to identify
- *	@unknown: mode to assume if we cannot tell
- *
- *	Set up the timing values for the device based upon the identify
- *	reported values for the DMA mode. This function is used by drivers
- *	which rely upon firmware configured modes, but wish to report the
- *	mode correctly when possible.
- *
- *	In addition we emit similarly formatted messages to the default
- *	ata_dev_set_mode handler, in order to provide consistency of
- *	presentation.
- */
-
-void ata_id_to_dma_mode(struct ata_device *dev, u8 unknown)
-{
-	unsigned int mask;
-	u8 mode;
-
-	/* Pack the DMA modes */
-	mask = ((dev->id[63] >> 8) << ATA_SHIFT_MWDMA) & ATA_MASK_MWDMA;
-	if (dev->id[53] & 0x04)
-		mask |= ((dev->id[88] >> 8) << ATA_SHIFT_UDMA) & ATA_MASK_UDMA;
-
-	/* Select the mode in use */
-	mode = ata_xfer_mask2mode(mask);
-
-	if (mode != 0xff) {
-		ata_dev_printk(dev, KERN_INFO, "configured for %s\n",
-		       ata_mode_string(mask));
-	} else {
-		/* SWDMA perhaps ? */
-		mode = unknown;
-		ata_dev_printk(dev, KERN_INFO, "configured for DMA\n");
-	}
-
-	/* Configure the device reporting */
-	dev->xfer_mode = mode;
-	dev->xfer_shift = ata_xfer_mode2shift(mode);
-}
-
-/**
  *	ata_noop_dev_select - Select device 0/1 on ATA bus
  *	@ap: ATA channel to manipulate
  *	@device: ATA device (numbered from zero) to select
@@ -7653,7 +7611,6 @@ EXPORT_SYMBOL_GPL(ata_host_resume);
 #endif /* CONFIG_PM */
 EXPORT_SYMBOL_GPL(ata_id_string);
 EXPORT_SYMBOL_GPL(ata_id_c_string);
-EXPORT_SYMBOL_GPL(ata_id_to_dma_mode);
 EXPORT_SYMBOL_GPL(ata_scsi_simulate);
 
 EXPORT_SYMBOL_GPL(ata_pio_need_iordy);