365     if (channel->ch_close_cb.cb_name != NULL)  in channel_still_useful()
383     return (channel->ch_callback.cb_name != NULL && (has_sock_msg  in channel_still_useful()
385 	    || ((channel->ch_part[PART_OUT].ch_callback.cb_name != NULL  in channel_still_useful()
388 	    || ((channel->ch_part[PART_ERR].ch_callback.cb_name != NULL  in channel_still_useful()
1101     if (callback->cb_name != NULL && *callback->cb_name != NUL)  in free_set_callback()
1104 	cbp->cb_name = NULL;  in free_set_callback()
2617 					    (char *)item->cq_callback.cb_name);  in invoke_one_time_callback()
2777     else if (ch_part->ch_callback.cb_name != NULL)  in may_invoke_callback()
2779     else if (channel->ch_callback.cb_name != NULL)  in may_invoke_callback()
2842 	    if (channel->ch_close_cb.cb_name == NULL && !channel->ch_drop_never)  in may_invoke_callback()
2961 						    (char *)callback->cb_name);  in may_invoke_callback()
3160 	if (channel->ch_close_cb.cb_name != NULL)  in channel_close()
3165 	    if (channel->ch_close_cb.cb_name != NULL  in channel_close()
3171 		if (channel->ch_close_cb.cb_name == NULL)  in channel_close()
3180 	if (channel->ch_close_cb.cb_name != NULL)  in channel_close()
3189 					 (char *)channel->ch_close_cb.cb_name);  in channel_close()
4238     if (opt->jo_callback.cb_name != NULL && *opt->jo_callback.cb_name != NUL)  in send_common()
4249 					   && opt->jo_callback.cb_name == NULL)  in send_common()