49  *      ext.data.ptr = the additiona cell head
50  *         -> cell.next -> cell.next -> ..
71 	struct snd_seq_event_cell *cell;  in dump_var_event()  local
104 	cell = (struct snd_seq_event_cell *)event->data.ext.ptr;  in dump_var_event()
105 	for (; len > 0 && cell; cell = cell->next) {  in dump_var_event()
107 		char *curptr = (char *)&cell->event;  in dump_var_event()
222  * release this cell, free extended data if available
226 			     struct snd_seq_event_cell *cell)  in free_cell()  argument
228 	cell->next = pool->free;  in free_cell()
229 	pool->free = cell;  in free_cell()
233 void snd_seq_cell_free(struct snd_seq_event_cell * cell)  in snd_seq_cell_free()  argument
238 	if (snd_BUG_ON(!cell))  in snd_seq_cell_free()
240 	pool = cell->pool;  in snd_seq_cell_free()
245 	free_cell(pool, cell);  in snd_seq_cell_free()
246 	if (snd_seq_ev_is_variable(&cell->event)) {  in snd_seq_cell_free()
247 		if (cell->event.data.ext.len & SNDRV_SEQ_EXT_CHAINED) {  in snd_seq_cell_free()
249 			curp = cell->event.data.ext.ptr;  in snd_seq_cell_free()
267  * allocate an event cell.
274 	struct snd_seq_event_cell *cell;  in snd_seq_cell_alloc()  local
314 	cell = pool->free;  in snd_seq_cell_alloc()
315 	if (cell) {  in snd_seq_cell_alloc()
317 		pool->free = cell->next;  in snd_seq_cell_alloc()
323 		/* clear cell pointers */  in snd_seq_cell_alloc()
324 		cell->next = NULL;  in snd_seq_cell_alloc()
328 	*cellp = cell;  in snd_seq_cell_alloc()
337  * duplicate the event to a cell.
347 	struct snd_seq_event_cell *cell;  in snd_seq_event_dup()  local
361 	err = snd_seq_cell_alloc(pool, &cell, nonblock, file, mutexp);  in snd_seq_event_dup()
367 	memcpy(&cell->ump, event, size);  in snd_seq_event_dup()
369 	if (size < sizeof(cell->event))  in snd_seq_event_dup()
370 		cell->ump.raw.extra = 0;  in snd_seq_event_dup()
381 		cell->event.data.ext.len = extlen | SNDRV_SEQ_EXT_CHAINED;  in snd_seq_event_dup()
382 		cell->event.data.ext.ptr = NULL;  in snd_seq_event_dup()
396 			if (cell->event.data.ext.ptr == NULL)  in snd_seq_event_dup()
397 				cell->event.data.ext.ptr = tmp;  in snd_seq_event_dup()
418 	*cellp = cell;  in snd_seq_event_dup()
422 	snd_seq_cell_free(cell);  in snd_seq_event_dup()
439 	int cell;  in snd_seq_pool_init()  local
451 	/* add new cells to the free cell list */  in snd_seq_pool_init()
462 	for (cell = 0; cell < pool->size; cell++) {  in snd_seq_pool_init()
463 		cellptr = pool->ptr + cell;  in snd_seq_pool_init()