261 		 * Packet has been refused due to the packet layer shutting  in ssh_rtl_tx_try_process_one()
285 		 * shutting down, the packet has either been submitted/queued  in ssh_rtl_tx_try_process_one()
290 		 * itself, had to have been canceled. Simply drop the  in ssh_rtl_tx_try_process_one()
357  * the request has been canceled prior to submission, %-EALREADY if the
358  * request has already been submitted, or %-ESHUTDOWN in case the request
359  * transport layer has been shut down.
377 	 * Try to set ptl and check if this request has already been submitted.  in ssh_rtl_submit()
384 	 * it from that, but removal might fail because it hasn't actually been  in ssh_rtl_submit()
388 	 * push operation has been completed (via lock) due to that. Only then,  in ssh_rtl_submit()
521 	/* If the request hasn't been completed yet, we will do this now. */  in ssh_rtl_complete()
529 	 * Make sure the request has been transmitted. In case of a sequenced  in ssh_rtl_complete()
531 	 * the receiver thread directly when the ACK for the packet has been  in ssh_rtl_complete()
533 	 * receiver thread. Thus we are guaranteed that if the packet has been  in ssh_rtl_complete()
535 	 * has been set and is visible here.  in ssh_rtl_complete()
543 	 * on unsequenced packets to determine if they could have been  in ssh_rtl_complete()
553 		 * NB: Timeout has already been canceled, request already been  in ssh_rtl_complete()
568 	 * NB: Timeout has already been canceled, request already been  in ssh_rtl_complete()
570 	 * can also not be queued any more, as it has been marked as  in ssh_rtl_complete()
592 	 * ptl reference must have been set previously, as locked is checked  in ssh_rtl_cancel_nonpending()
600 	 * been due to the critical section.  in ssh_rtl_cancel_nonpending()
603 	 * been set and is non-NULL, as states can only be nonzero after this  in ssh_rtl_cancel_nonpending()
604 	 * has been set. Also note that we need to fetch the static (type)  in ssh_rtl_cancel_nonpending()
666 	 * check in ssh_rtl_submit() has not been run and any submission,  in ssh_rtl_cancel_pending()
683 	 * Try to cancel the packet. If the packet has not been completed yet,  in ssh_rtl_cancel_pending()
690 	 * If the packet has been completed with success, i.e. has not been  in ssh_rtl_cancel_pending()
691 	 * canceled by the above call, the request may not have been completed  in ssh_rtl_cancel_pending()
711  * pending requests, i.e. requests that have already been submitted to the
712  * packet layer but not been completed yet. If @pending is %true, this will
715  * If the request has been canceled by calling this function, both completion
724  * Return: Returns %true if the given request has been canceled or completed,
743 	/* Note: rtl may be NULL if request has not been submitted yet. */  in ssh_rtl_cancel()
762 		 * The packet may get canceled even though it has not been  in ssh_rtl_packet_callback()
765 		 * been started in this function on success, there's no need  in ssh_rtl_packet_callback()
795 	 * left the queue and no timeout has been started. Thus we only need to  in ssh_rtl_packet_callback()
796 	 * remove it from pending. If the request has already been completed (it  in ssh_rtl_packet_callback()
797 	 * may have been canceled) return.  in ssh_rtl_packet_callback()
1020  * separately via ssh_rtl_start(), after the request-layer has been
1021  * initialized and the lower-level serial device layer has been set up.
1061  * associated with it. If receiver and/or transmitter threads have been
1133  * have been completed. Instead of a normal data packet, this request submits
1135  * packet transport layer has been flushed.
1138  * requests have been fully completed before this call returns. Additionally,
1140  * has been completed.
1149  * been canceled as a result of the timeout, or %-ESHUTDOWN if the packet
1150  * and/or request transport layer has been shut down before this call. May
1151  * also return %-EINTR if the underlying packet transmission has been
1194  * down. Submission of requests after the transport layer has been shut down