diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h
index c8621671fa70..00c32eed2124 100644
--- a/include/sound/seq_kernel.h
+++ b/include/sound/seq_kernel.h
@@ -86,10 +86,6 @@ static inline size_t snd_seq_event_packet_size(struct snd_seq_event *ev)
 /* interface for OSS emulation */
 int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo);
 
-/* port callback routines */
-void snd_port_init_callback(struct snd_seq_port_callback *p);
-struct snd_seq_port_callback *snd_port_alloc_callback(void);
-
 /* port attach/detach */
 int snd_seq_event_port_attach(int client, struct snd_seq_port_callback *pcbp,
 			      int cap, int type, int midi_channels, int midi_voices, char *portname);
diff --git a/sound/core/seq/oss/seq_oss_device.h b/sound/core/seq/oss/seq_oss_device.h
index f0e964b19af7..98dd20b42976 100644
--- a/sound/core/seq/oss/seq_oss_device.h
+++ b/sound/core/seq/oss/seq_oss_device.h
@@ -116,10 +116,6 @@ __poll_t snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_ta
 
 void snd_seq_oss_reset(struct seq_oss_devinfo *dp);
 
-/* */
-void snd_seq_oss_process_queue(struct seq_oss_devinfo *dp, abstime_t time);
-
-
 /* proc interface */
 void snd_seq_oss_system_info_read(struct snd_info_buffer *buf);
 void snd_seq_oss_midi_info_read(struct snd_info_buffer *buf);
diff --git a/sound/core/seq/seq_queue.h b/sound/core/seq/seq_queue.h
index c69105dc1a10..74cc31aacdac 100644
--- a/sound/core/seq/seq_queue.h
+++ b/sound/core/seq/seq_queue.h
@@ -84,7 +84,6 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop);
 int snd_seq_queue_check_access(int queueid, int client);
 int snd_seq_queue_timer_set_tempo(int queueid, int client, struct snd_seq_queue_tempo *info);
 int snd_seq_queue_set_owner(int queueid, int client, int locked);
-int snd_seq_queue_set_locked(int queueid, int client, int locked);
 int snd_seq_queue_timer_open(int queueid);
 int snd_seq_queue_timer_close(int queueid);
 int snd_seq_queue_use(int queueid, int client, int use);
diff --git a/sound/core/seq/seq_timer.h b/sound/core/seq/seq_timer.h
index 3b906064bde1..c8803216a3a4 100644
--- a/sound/core/seq/seq_timer.h
+++ b/sound/core/seq/seq_timer.h
@@ -109,8 +109,6 @@ static inline void snd_seq_inc_time_nsec(snd_seq_real_time_t *tm, unsigned long
 struct snd_seq_queue;
 int snd_seq_timer_open(struct snd_seq_queue *q);
 int snd_seq_timer_close(struct snd_seq_queue *q);
-int snd_seq_timer_midi_open(struct snd_seq_queue *q);
-int snd_seq_timer_midi_close(struct snd_seq_queue *q);
 void snd_seq_timer_defaults(struct snd_seq_timer *tmr);
 void snd_seq_timer_reset(struct snd_seq_timer *tmr);
 int snd_seq_timer_stop(struct snd_seq_timer *tmr);