[SCSI] usb: transport - convert to accessors and !use_sg code path removal

  - This patch depends on:
    usb: transport.c use scsi_eh API in REQUEST_SENSE execution

  - Use scsi data accessors and remove of !use_sg code path.
  - New usb_stor_bulk_srb() for use by drivers

[jejb: updated with corrective fix.

had a bug in residual handling in the new usb_stor_bulk_srb()
function.  Found by Gabriel C. in -mm tree.

Tested-by: Gabriel C <nix.or.die@googlemail.com>
]

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/storage/transport.h b/drivers/usb/storage/transport.h
index 633a715850a4..ada7c2f43f84 100644
--- a/drivers/usb/storage/transport.h
+++ b/drivers/usb/storage/transport.h
@@ -139,6 +139,8 @@ extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
                 void *buf, unsigned int length, unsigned int *act_len);
 extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe,
                 void *buf, unsigned int length, int use_sg, int *residual);
+extern int usb_stor_bulk_srb(struct us_data* us, unsigned int pipe,
+                struct scsi_cmnd* srb);
 
 extern int usb_stor_port_reset(struct us_data *us);
 #endif