+/**
+ * scsi_eh_restore_cmnd - Restore a scsi command info as part of error recory
+ * @scmd: SCSI command structure to restore
+ * @ses: saved information from a coresponding call to scsi_prep_eh_cmnd
+ *
+ * Undo any damage done by above scsi_prep_eh_cmnd().
+ */
+void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses)
+{
+ /*
+ * Restore original data
+ */
+ scmd->cmd_len = ses->cmd_len;
+ scmd->cmnd = ses->cmnd;
+ scmd->sc_data_direction = ses->data_direction;
+ scmd->sdb = ses->sdb;
+ scmd->request->next_rq = ses->next_rq;
+ scmd->result = ses->result;
+}
+EXPORT_SYMBOL(scsi_eh_restore_cmnd);
+
+/**
+ * scsi_send_eh_cmnd - submit a scsi command as part of error recory
+ * @scmd: SCSI command structure to hijack
+ * @cmnd: CDB to send
+ * @cmnd_size: size in bytes of @cmnd
+ * @timeout: timeout for this request
+ * @sense_bytes: size of sense data to copy or 0
+ *
+ * This function is used to send a scsi command down to a target device
+ * as part of the error recovery process. See also scsi_eh_prep_cmnd() above.
+ *
+ * Return value:
+ * SUCCESS or FAILED or NEEDS_RETRY
+ */
+static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd,
+ int cmnd_size, int timeout, unsigned sense_bytes)
+{
+ struct scsi_device *sdev = scmd->device;
+ struct Scsi_Host *shost = sdev->host;
+ DECLARE_COMPLETION_ONSTACK(done);
+ unsigned long timeleft;
+ unsigned long flags;
+ struct scsi_eh_save ses;
+ int rtn;
+
+ scsi_eh_prep_cmnd(scmd, &ses, cmnd, cmnd_size, sense_bytes);