2 files changed, 3 insertions, 53 deletions

diff --git a/Documentation/DMA-mapping.txt b/Documentation/DMA-mapping.txt
index f4ac37f157ea..684557474c15 100644
--- a/Documentation/DMA-mapping.txt
+++ b/Documentation/DMA-mapping.txt
@@ -443,15 +443,9 @@ Only streaming mappings specify a direction, consistent mappings
 implicitly have a direction attribute setting of
 PCI_DMA_BIDIRECTIONAL.
 
-The SCSI subsystem provides mechanisms for you to easily obtain
-the direction to use, in the SCSI command:
-
-        scsi_to_pci_dma_dir(SCSI_DIRECTION)
-
-Where SCSI_DIRECTION is obtained from the 'sc_data_direction'
-member of the SCSI command your driver is working on.  The
-mentioned interface above returns a value suitable for passing
-into the streaming DMA mapping interfaces below.
+The SCSI subsystem tells you the direction to use in the
+'sc_data_direction' member of the SCSI command your driver is
+working on.
 
 For Networking drivers, it's a rather simple affair.  For transmit
 packets, map/unmap them with the PCI_DMA_TODEVICE direction
diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt
index 1f24129a3099..e41703d7d24d 100644
--- a/Documentation/scsi/scsi_mid_low_api.txt
+++ b/Documentation/scsi/scsi_mid_low_api.txt
@@ -389,8 +389,6 @@ Summary:
    scsi_remove_host - detach and remove all SCSI devices owned by host
    scsi_report_bus_reset - report scsi _bus_ reset observed
    scsi_set_device - place device reference in host structure
-   scsi_to_pci_dma_dir - convert SCSI subsystem direction flag to PCI
-   scsi_to_sbus_dma_dir - convert SCSI subsystem direction flag to SBUS
    scsi_track_queue_full - track successive QUEUE_FULL events 
    scsi_unblock_requests - allow further commands to be queued to given host
    scsi_unregister - [calls scsi_host_put()]
@@ -757,48 +755,6 @@ void scsi_set_device(struct Scsi_Host * shost, struct device * dev)
 
 
 /**
- * scsi_to_pci_dma_dir - convert SCSI subsystem direction flag to PCI
- * @scsi_data_direction: SCSI subsystem direction flag
- *
- *      Returns DMA_TO_DEVICE given SCSI_DATA_WRITE,
- *              DMA_FROM_DEVICE given SCSI_DATA_READ
- *              DMA_BIDIRECTIONAL given SCSI_DATA_UNKNOWN
- *              else returns DMA_NONE
- *
- *      Might block: no
- *
- *      Notes: The SCSI subsystem now uses the same values for these
- *      constants as the PCI subsystem so this function is a nop.
- *      The recommendation is not to use this conversion function anymore
- *      (in the 2.6 kernel series) as it is not needed.
- *
- *      Defined in: drivers/scsi/scsi.h .
- **/
-int scsi_to_pci_dma_dir(unsigned char scsi_data_direction)
-
-
-/**
- * scsi_to_sbus_dma_dir - convert SCSI subsystem direction flag to SBUS
- * @scsi_data_direction: SCSI subsystem direction flag
- *
- *      Returns DMA_TO_DEVICE given SCSI_DATA_WRITE,
- *              FROM_DEVICE given SCSI_DATA_READ
- *              DMA_BIDIRECTIONAL given SCSI_DATA_UNKNOWN
- *              else returns DMA_NONE
- *
- *      Notes: The SCSI subsystem now uses the same values for these
- *      constants as the SBUS subsystem so this function is a nop.
- *      The recommendation is not to use this conversion function anymore
- *      (in the 2.6 kernel series) as it is not needed.
- *
- *      Might block: no
- *
- *      Defined in: drivers/scsi/scsi.h .
- **/
-int scsi_to_sbus_dma_dir(unsigned char scsi_data_direction)
-
-
-/**
  * scsi_track_queue_full - track successive QUEUE_FULL events on given
  *                      device to determine if and when there is a need
  *                      to adjust the queue depth on the device.