int scsi_execute_cmd(struct scsi_device *sdev, const unsigned char *cmd,
		     blk_opf_t opf, void *buffer, unsigned int bufflen,
		     int timeout, int retries,
		     const struct scsi_exec_args *args)
int scsi_execute_cmd(struct scsi_device *sdev, const unsigned char *cmd,
		     blk_opf_t opf, void *buffer, unsigned int bufflen,
		     int timeout, int ml_retries,
		     const struct scsi_exec_args *args)