USB: usb-storage: merge ATAPI and QIC-157 protocol routines
This patch (as1174) merges usb-storage's QIC-157 and ATAPI protocol
routines. Since the two functions are identical, there's no reason to
keep them separate.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index 3b3357e..be441d8 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -56,9 +56,9 @@
* Protocol routines
***********************************************************************/
-void usb_stor_qic157_command(struct scsi_cmnd *srb, struct us_data *us)
+void usb_stor_pad12_command(struct scsi_cmnd *srb, struct us_data *us)
{
- /* Pad the ATAPI command with zeros
+ /* Pad the SCSI command with zeros out to 12 bytes
*
* NOTE: This only works because a scsi_cmnd struct field contains
* a unsigned char cmnd[16], so we know we have storage available
@@ -73,26 +73,6 @@
usb_stor_invoke_transport(srb, us);
}
-void usb_stor_ATAPI_command(struct scsi_cmnd *srb, struct us_data *us)
-{
- /* Pad the ATAPI command with zeros
- *
- * NOTE: This only works because a scsi_cmnd struct field contains
- * a unsigned char cmnd[16], so we know we have storage available
- */
-
- /* Pad the ATAPI command with zeros */
- for (; srb->cmd_len<12; srb->cmd_len++)
- srb->cmnd[srb->cmd_len] = 0;
-
- /* set command length to 12 bytes */
- srb->cmd_len = 12;
-
- /* send the command to the transport layer */
- usb_stor_invoke_transport(srb, us);
-}
-
-
void usb_stor_ufi_command(struct scsi_cmnd *srb, struct us_data *us)
{
/* fix some commands -- this is a form of mode translation
diff --git a/drivers/usb/storage/protocol.h b/drivers/usb/storage/protocol.h
index 487056f..ffc3e2a 100644
--- a/drivers/usb/storage/protocol.h
+++ b/drivers/usb/storage/protocol.h
@@ -40,8 +40,7 @@
#define _PROTOCOL_H_
/* Protocol handling routines */
-extern void usb_stor_ATAPI_command(struct scsi_cmnd*, struct us_data*);
-extern void usb_stor_qic157_command(struct scsi_cmnd*, struct us_data*);
+extern void usb_stor_pad12_command(struct scsi_cmnd*, struct us_data*);
extern void usb_stor_ufi_command(struct scsi_cmnd*, struct us_data*);
extern void usb_stor_transparent_scsi_command(struct scsi_cmnd*,
struct us_data*);
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index cdd009f..06c7357 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -704,19 +704,19 @@
case US_SC_8020:
us->protocol_name = "8020i";
- us->proto_handler = usb_stor_ATAPI_command;
+ us->proto_handler = usb_stor_pad12_command;
us->max_lun = 0;
break;
case US_SC_QIC:
us->protocol_name = "QIC-157";
- us->proto_handler = usb_stor_qic157_command;
+ us->proto_handler = usb_stor_pad12_command;
us->max_lun = 0;
break;
case US_SC_8070:
us->protocol_name = "8070i";
- us->proto_handler = usb_stor_ATAPI_command;
+ us->proto_handler = usb_stor_pad12_command;
us->max_lun = 0;
break;