159 			   struct signal_queue_header *sig_hdr, int slot)  in sig_data_offset()  argument
161 	return (sig_queue_offset(chan_hdr, q) + sig_hdr->sig_base_offset +  in sig_data_offset()
162 	       (slot * sig_hdr->signal_size));  in sig_data_offset()
169 #define SIG_WRITE_FIELD(channel, queue, sig_hdr, FIELD) \  argument
173 			   &((sig_hdr)->FIELD), \
174 			   sizeof((sig_hdr)->FIELD))
177 			   struct signal_queue_header *sig_hdr)  in sig_read_header()  argument
185 				 sig_hdr, sizeof(struct signal_queue_header));  in sig_read_header()
189 			 struct signal_queue_header *sig_hdr, u32 slot,  in sig_read_data()  argument
193 						 sig_hdr, slot);  in sig_read_data()
196 				 data, sig_hdr->signal_size);  in sig_read_data()
200 			  struct signal_queue_header *sig_hdr, u32 slot,  in sig_write_data()  argument
204 						 sig_hdr, slot);  in sig_write_data()
207 				  data, sig_hdr->signal_size);  in sig_write_data()
213 	struct signal_queue_header sig_hdr;  in signalremove_inner()  local
216 	error = sig_read_header(channel, queue, &sig_hdr);  in signalremove_inner()
220 	if (sig_hdr.head == sig_hdr.tail)  in signalremove_inner()
222 	sig_hdr.tail = (sig_hdr.tail + 1) % sig_hdr.max_slots;  in signalremove_inner()
223 	error = sig_read_data(channel, queue, &sig_hdr, sig_hdr.tail, msg);  in signalremove_inner()
226 	sig_hdr.num_received++;  in signalremove_inner()
232 	error = SIG_WRITE_FIELD(channel, queue, &sig_hdr, tail);  in signalremove_inner()
235 	error = SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_received);  in signalremove_inner()
270 	struct signal_queue_header sig_hdr;  in queue_empty()  local
272 	if (sig_read_header(channel, queue, &sig_hdr))  in queue_empty()
274 	return (sig_hdr.head == sig_hdr.tail);  in queue_empty()
303 	struct signal_queue_header sig_hdr;  in signalinsert_inner()  local
306 	err = sig_read_header(channel, queue, &sig_hdr);  in signalinsert_inner()
309 	sig_hdr.head = (sig_hdr.head + 1) % sig_hdr.max_slots;  in signalinsert_inner()
310 	if (sig_hdr.head == sig_hdr.tail) {  in signalinsert_inner()
311 		sig_hdr.num_overflows++;  in signalinsert_inner()
312 		err = SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_overflows);  in signalinsert_inner()
317 	err = sig_write_data(channel, queue, &sig_hdr, sig_hdr.head, msg);  in signalinsert_inner()
320 	sig_hdr.num_sent++;  in signalinsert_inner()
326 	err = SIG_WRITE_FIELD(channel, queue, &sig_hdr, head);  in signalinsert_inner()
329 	err = SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_sent);  in signalinsert_inner()