[SCSI] remove scsi_req_map_sg

No one uses scsi_execute_async with data transfer now. We can remove
scsi_req_map_sg.

Only scsi_eh_lock_door uses scsi_execute_async. scsi_eh_lock_door
doesn't handle sense and the callback. So we can remove
scsi_io_context too.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 15b09266b7ff..3f566af3f101 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -371,12 +371,6 @@ extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
                             int data_direction, void *buffer, unsigned bufflen,
                             struct scsi_sense_hdr *, int timeout, int retries,
                             int *resid);
-extern int scsi_execute_async(struct scsi_device *sdev,
-                              const unsigned char *cmd, int cmd_len, int data_direction,
-                              void *buffer, unsigned bufflen, int use_sg,
-                              int timeout, int retries, void *privdata,
-                              void (*done)(void *, char *, int, int),
-                              gfp_t gfp);
 
 static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
 {