70 static int get_var_len(const struct snd_seq_event *event)  in get_var_len()  argument
72 	if ((event->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE)  in get_var_len()
75 	return event->data.ext.len & ~SNDRV_SEQ_EXT_MASK;  in get_var_len()
78 int snd_seq_dump_var_event(const struct snd_seq_event *event,  in snd_seq_dump_var_event()  argument
84 	if ((len = get_var_len(event)) <= 0)  in snd_seq_dump_var_event()
87 	if (event->data.ext.len & SNDRV_SEQ_EXT_USRPTR) {  in snd_seq_dump_var_event()
89 		char __user *curptr = (char __user *)event->data.ext.ptr;  in snd_seq_dump_var_event()
103 	} if (! (event->data.ext.len & SNDRV_SEQ_EXT_CHAINED)) {  in snd_seq_dump_var_event()
104 		return func(private_data, event->data.ext.ptr, len);  in snd_seq_dump_var_event()
107 	cell = (struct snd_seq_event_cell *)event->data.ext.ptr;  in snd_seq_dump_var_event()
112 		err = func(private_data, &cell->event, size);  in snd_seq_dump_var_event()
143 int snd_seq_expand_var_event(const struct snd_seq_event *event, int count, char *buf,  in snd_seq_expand_var_event()  argument
149 	if ((len = get_var_len(event)) < 0)  in snd_seq_expand_var_event()
157 	if (event->data.ext.len & SNDRV_SEQ_EXT_USRPTR) {  in snd_seq_expand_var_event()
160 		if (copy_from_user(buf, (void __user *)event->data.ext.ptr, len))  in snd_seq_expand_var_event()
164 	err = snd_seq_dump_var_event(event,  in snd_seq_expand_var_event()
198 	if (snd_seq_ev_is_variable(&cell->event)) {  in snd_seq_cell_free()
199 		if (cell->event.data.ext.len & SNDRV_SEQ_EXT_CHAINED) {  in snd_seq_cell_free()
201 			curp = cell->event.data.ext.ptr;  in snd_seq_cell_free()
288 int snd_seq_event_dup(struct snd_seq_pool *pool, struct snd_seq_event *event,  in snd_seq_event_dup()  argument
300 	if (snd_seq_ev_is_variable(event)) {  in snd_seq_event_dup()
301 		extlen = event->data.ext.len & ~SNDRV_SEQ_EXT_MASK;  in snd_seq_event_dup()
312 	cell->event = *event;  in snd_seq_event_dup()
315 	if (snd_seq_ev_is_variable(event)) {  in snd_seq_event_dup()
317 		int is_chained = event->data.ext.len & SNDRV_SEQ_EXT_CHAINED;  in snd_seq_event_dup()
318 		int is_usrptr = event->data.ext.len & SNDRV_SEQ_EXT_USRPTR;  in snd_seq_event_dup()
322 		cell->event.data.ext.len = extlen | SNDRV_SEQ_EXT_CHAINED;  in snd_seq_event_dup()
323 		cell->event.data.ext.ptr = NULL;  in snd_seq_event_dup()
325 		src = (struct snd_seq_event_cell *)event->data.ext.ptr;  in snd_seq_event_dup()
326 		buf = (char *)event->data.ext.ptr;  in snd_seq_event_dup()
336 			if (cell->event.data.ext.ptr == NULL)  in snd_seq_event_dup()
337 				cell->event.data.ext.ptr = tmp;  in snd_seq_event_dup()
343 				tmp->event = src->event;  in snd_seq_event_dup()
346 				if (copy_from_user(&tmp->event, (char __user *)buf, size)) {  in snd_seq_event_dup()
351 				memcpy(&tmp->event, buf, size);  in snd_seq_event_dup()