[PATCH v2 1/3] scsi: core: Extend struct scsi_exec_args

[Bart Van Assche <bvanassche@xxxxxxx>]

Allow SCSI LLDs to specify SCMD_* flags.

Cc: Mike Christie <michael.christie@xxxxxxxxxx>
Cc: John Garry <john.g.garry@xxxxxxxxxx>
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
 drivers/scsi/scsi_lib.c    | 1 +
 include/scsi/scsi_device.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index abe93ec8b7d0..b7c569a42aa4 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -229,6 +229,7 @@ int scsi_execute_cmd(struct scsi_device *sdev, const unsigned char *cmd,
 	scmd->cmd_len = COMMAND_SIZE(cmd[0]);
 	memcpy(scmd->cmnd, cmd, scmd->cmd_len);
 	scmd->allowed = retries;
+	scmd->flags |= args->scmd_flags;
 	req->timeout = timeout;
 	req->rq_flags |= RQF_QUIET;
 
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 7e95ec45138f..c7bfb1f5a8e7 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -462,6 +462,7 @@ struct scsi_exec_args {
 	unsigned int sense_len;		/* sense buffer len */
 	struct scsi_sense_hdr *sshdr;	/* decoded sense header */
 	blk_mq_req_flags_t req_flags;	/* BLK_MQ_REQ flags */
+	unsigned int scmd_flags;	/* SCMD flags */
 	int *resid;			/* residual length */
 };