[ALSA] sound/core/: possible cleanups

PCM Midlevel,ALSA Core,Timer Midlevel,ALSA sequencer,Virtual Midi
This patch contains the following possible cleanups:
- make needlessly global code static
- #if 0 the following unused global functions
- remove the following unneeded EXPORT_SYMBOL's

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/pcm.h

@@ -848,23 +848,6 @@ int snd_interval_ratnum(snd_interval_t *i,
 
 void _snd_pcm_hw_params_any(snd_pcm_hw_params_t *params);
 void _snd_pcm_hw_param_setempty(snd_pcm_hw_params_t *params, snd_pcm_hw_param_t var);
-int snd_pcm_hw_param_min(snd_pcm_substream_t *substream, 
-			 snd_pcm_hw_params_t *params,
-			 snd_pcm_hw_param_t var,
-			 unsigned int val, int *dir);
-int snd_pcm_hw_param_max(snd_pcm_substream_t *substream, 
-			 snd_pcm_hw_params_t *params,
-			 snd_pcm_hw_param_t var,
-			 unsigned int val, int *dir);
-int snd_pcm_hw_param_setinteger(snd_pcm_substream_t *substream, 
-				snd_pcm_hw_params_t *params,
-				snd_pcm_hw_param_t var);
-int snd_pcm_hw_param_first(snd_pcm_substream_t *substream, 
-			   snd_pcm_hw_params_t *params,
-			   snd_pcm_hw_param_t var, int *dir);
-int snd_pcm_hw_param_last(snd_pcm_substream_t *substream, 
-			  snd_pcm_hw_params_t *params,
-			  snd_pcm_hw_param_t var, int *dir);
 int snd_pcm_hw_param_near(snd_pcm_substream_t *substream, 
 			  snd_pcm_hw_params_t *params,
 			  snd_pcm_hw_param_t var, 
@@ -876,7 +859,6 @@ int snd_pcm_hw_param_set(snd_pcm_substream_t *pcm,
 int snd_pcm_hw_params_choose(snd_pcm_substream_t *substream, snd_pcm_hw_params_t *params);
 
 int snd_pcm_hw_refine(snd_pcm_substream_t *substream, snd_pcm_hw_params_t *params);
-int snd_pcm_hw_params(snd_pcm_substream_t *substream, snd_pcm_hw_params_t *params);
 
 int snd_pcm_hw_constraints_init(snd_pcm_substream_t *substream);
 int snd_pcm_hw_constraints_complete(snd_pcm_substream_t *substream);

include/sound/seq_midi_event.h

@@ -41,9 +41,7 @@ struct snd_midi_event_t {
 };
 
 int snd_midi_event_new(int bufsize, snd_midi_event_t **rdev);
-int snd_midi_event_resize_buffer(snd_midi_event_t *dev, int bufsize);
 void snd_midi_event_free(snd_midi_event_t *dev);
-void snd_midi_event_init(snd_midi_event_t *dev);
 void snd_midi_event_reset_encode(snd_midi_event_t *dev);
 void snd_midi_event_reset_decode(snd_midi_event_t *dev);
 void snd_midi_event_no_status(snd_midi_event_t *dev, int on);

include/sound/seq_virmidi.h

@@ -79,6 +79,5 @@ struct _snd_virmidi_dev {
 #define SNDRV_VIRMIDI_SEQ_DISPATCH	2
 
 int snd_virmidi_new(snd_card_t *card, int device, snd_rawmidi_t **rrmidi);
-int snd_virmidi_receive(snd_rawmidi_t *rmidi, snd_seq_event_t *ev);
 
 #endif /* __SOUND_SEQ_VIRMIDI */

include/sound/timer.h

@@ -152,6 +152,4 @@ extern int snd_timer_pause(snd_timer_instance_t * timeri);
 
 extern void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left);
 
-extern unsigned int snd_timer_system_resolution(void);
-
 #endif /* __SOUND_TIMER_H */

sound/core/pcm.c

@@ -1049,7 +1049,6 @@ EXPORT_SYMBOL(snd_pcm_release_substream);
 EXPORT_SYMBOL(snd_pcm_format_name);
   /* pcm_native.c */
 EXPORT_SYMBOL(snd_pcm_link_rwlock);
-EXPORT_SYMBOL(snd_pcm_start);
 #ifdef CONFIG_PM
 EXPORT_SYMBOL(snd_pcm_suspend);
 EXPORT_SYMBOL(snd_pcm_suspend_all);

sound/core/pcm_lib.c

@@ -1143,7 +1143,8 @@ int snd_pcm_hw_constraint_pow2(snd_pcm_runtime_t *runtime,
 #define INT_MIN ((int)((unsigned int)INT_MAX+1))
 #endif
 
-void _snd_pcm_hw_param_any(snd_pcm_hw_params_t *params, snd_pcm_hw_param_t var)
+static void _snd_pcm_hw_param_any(snd_pcm_hw_params_t *params,
+				  snd_pcm_hw_param_t var)
 {
 	if (hw_is_mask(var)) {
 		snd_mask_any(hw_param_mask(params, var));
@@ -1163,12 +1164,14 @@ void _snd_pcm_hw_param_any(snd_pcm_hw_params_t *params, snd_pcm_hw_param_t var)
 /**
  * snd_pcm_hw_param_any
  */
+#if 0
 int snd_pcm_hw_param_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
 			 snd_pcm_hw_param_t var)
 {
 	_snd_pcm_hw_param_any(params, var);
 	return snd_pcm_hw_refine(pcm, params);
 }
+#endif  /*  0  */
 
 void _snd_pcm_hw_params_any(snd_pcm_hw_params_t *params)
 {
@@ -1186,11 +1189,13 @@ void _snd_pcm_hw_params_any(snd_pcm_hw_params_t *params)
  *
  * Fill PARAMS with full configuration space boundaries
  */
+#if 0
 int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
 {
 	_snd_pcm_hw_params_any(params);
 	return snd_pcm_hw_refine(pcm, params);
 }
+#endif  /*  0  */
 
 /**
  * snd_pcm_hw_param_value
@@ -1198,8 +1203,8 @@ int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
  * Return the value for field PAR if it's fixed in configuration space 
  *  defined by PARAMS. Return -EINVAL otherwise
  */
-int snd_pcm_hw_param_value(const snd_pcm_hw_params_t *params,
-			   snd_pcm_hw_param_t var, int *dir)
+static int snd_pcm_hw_param_value(const snd_pcm_hw_params_t *params,
+				  snd_pcm_hw_param_t var, int *dir)
 {
 	if (hw_is_mask(var)) {
 		const snd_mask_t *mask = hw_param_mask_c(params, var);
@@ -1303,6 +1308,7 @@ int _snd_pcm_hw_param_setinteger(snd_pcm_hw_params_t *params,
  * non integer values. Reduce configuration space accordingly.
  * Return -EINVAL if the configuration space is empty
  */
+#if 0
 int snd_pcm_hw_param_setinteger(snd_pcm_t *pcm, 
 				snd_pcm_hw_params_t *params,
 				snd_pcm_hw_param_t var)
@@ -1317,9 +1323,10 @@ int snd_pcm_hw_param_setinteger(snd_pcm_t *pcm,
 	}
 	return 0;
 }
+#endif  /*  0  */
 
-int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
-			    snd_pcm_hw_param_t var)
+static int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
+				   snd_pcm_hw_param_t var)
 {
 	int changed;
 	if (hw_is_mask(var))
@@ -1345,9 +1352,9 @@ int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
  * values > minimum. Reduce configuration space accordingly.
  * Return the minimum.
  */
-int snd_pcm_hw_param_first(snd_pcm_t *pcm, 
-			   snd_pcm_hw_params_t *params, 
-			   snd_pcm_hw_param_t var, int *dir)
+static int snd_pcm_hw_param_first(snd_pcm_t *pcm, 
+				  snd_pcm_hw_params_t *params, 
+				  snd_pcm_hw_param_t var, int *dir)
 {
 	int changed = _snd_pcm_hw_param_first(params, var);
 	if (changed < 0)
@@ -1359,8 +1366,8 @@ int snd_pcm_hw_param_first(snd_pcm_t *pcm,
 	return snd_pcm_hw_param_value(params, var, dir);
 }
 
-int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
-			   snd_pcm_hw_param_t var)
+static int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
+				  snd_pcm_hw_param_t var)
 {
 	int changed;
 	if (hw_is_mask(var))
@@ -1386,9 +1393,9 @@ int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
  * values < maximum. Reduce configuration space accordingly.
  * Return the maximum.
  */
-int snd_pcm_hw_param_last(snd_pcm_t *pcm, 
-			  snd_pcm_hw_params_t *params,
-			  snd_pcm_hw_param_t var, int *dir)
+static int snd_pcm_hw_param_last(snd_pcm_t *pcm, 
+				 snd_pcm_hw_params_t *params,
+				 snd_pcm_hw_param_t var, int *dir)
 {
 	int changed = _snd_pcm_hw_param_last(params, var);
 	if (changed < 0)
@@ -1437,8 +1444,9 @@ int _snd_pcm_hw_param_min(snd_pcm_hw_params_t *params,
  * values < VAL. Reduce configuration space accordingly.
  * Return new minimum or -EINVAL if the configuration space is empty
  */
-int snd_pcm_hw_param_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-			 snd_pcm_hw_param_t var, unsigned int val, int *dir)
+static int snd_pcm_hw_param_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
+				snd_pcm_hw_param_t var, unsigned int val,
+				int *dir)
 {
 	int changed = _snd_pcm_hw_param_min(params, var, val, dir ? *dir : 0);
 	if (changed < 0)
@@ -1451,8 +1459,9 @@ int snd_pcm_hw_param_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
 	return snd_pcm_hw_param_value_min(params, var, dir);
 }
 
-int _snd_pcm_hw_param_max(snd_pcm_hw_params_t *params,
-			   snd_pcm_hw_param_t var, unsigned int val, int dir)
+static int _snd_pcm_hw_param_max(snd_pcm_hw_params_t *params,
+				 snd_pcm_hw_param_t var, unsigned int val,
+				 int dir)
 {
 	int changed;
 	int open = 0;
@@ -1490,8 +1499,9 @@ int _snd_pcm_hw_param_max(snd_pcm_hw_params_t *params,
  *  values >= VAL + 1. Reduce configuration space accordingly.
  *  Return new maximum or -EINVAL if the configuration space is empty
  */
-int snd_pcm_hw_param_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-			  snd_pcm_hw_param_t var, unsigned int val, int *dir)
+static int snd_pcm_hw_param_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
+				snd_pcm_hw_param_t var, unsigned int val,
+				int *dir)
 {
 	int changed = _snd_pcm_hw_param_max(params, var, val, dir ? *dir : 0);
 	if (changed < 0)
@@ -2564,9 +2574,6 @@ snd_pcm_sframes_t snd_pcm_lib_readv(snd_pcm_substream_t *substream,
 EXPORT_SYMBOL(snd_interval_refine);
 EXPORT_SYMBOL(snd_interval_list);
 EXPORT_SYMBOL(snd_interval_ratnum);
-EXPORT_SYMBOL(snd_interval_muldivk);
-EXPORT_SYMBOL(snd_interval_mulkdiv);
-EXPORT_SYMBOL(snd_interval_div);
 EXPORT_SYMBOL(_snd_pcm_hw_params_any);
 EXPORT_SYMBOL(_snd_pcm_hw_param_min);
 EXPORT_SYMBOL(_snd_pcm_hw_param_set);
@@ -2580,7 +2587,6 @@ EXPORT_SYMBOL(snd_pcm_hw_param_last);
 EXPORT_SYMBOL(snd_pcm_hw_param_near);
 EXPORT_SYMBOL(snd_pcm_hw_param_set);
 EXPORT_SYMBOL(snd_pcm_hw_refine);
-EXPORT_SYMBOL(snd_pcm_hw_params);
 EXPORT_SYMBOL(snd_pcm_hw_constraints_init);
 EXPORT_SYMBOL(snd_pcm_hw_constraints_complete);
 EXPORT_SYMBOL(snd_pcm_hw_constraint_list);

sound/core/pcm_native.c

@@ -337,8 +337,8 @@ out:
 	return err;
 }
 
-int snd_pcm_hw_params(snd_pcm_substream_t *substream,
-		      snd_pcm_hw_params_t *params)
+static int snd_pcm_hw_params(snd_pcm_substream_t *substream,
+			     snd_pcm_hw_params_t *params)
 {
 	snd_pcm_runtime_t *runtime;
 	int err;

sound/core/seq/seq_midi_event.c

@@ -171,11 +171,13 @@ void snd_midi_event_reset_decode(snd_midi_event_t *dev)
 	spin_unlock_irqrestore(&dev->lock, flags);
 }
 
+#if 0
 void snd_midi_event_init(snd_midi_event_t *dev)
 {
 	snd_midi_event_reset_encode(dev);
 	snd_midi_event_reset_decode(dev);
 }
+#endif  /*  0  */
 
 void snd_midi_event_no_status(snd_midi_event_t *dev, int on)
 {
@@ -185,6 +187,7 @@ void snd_midi_event_no_status(snd_midi_event_t *dev, int on)
 /*
  * resize buffer
  */
+#if 0
 int snd_midi_event_resize_buffer(snd_midi_event_t *dev, int bufsize)
 {
 	unsigned char *new_buf, *old_buf;
@@ -204,6 +207,7 @@ int snd_midi_event_resize_buffer(snd_midi_event_t *dev, int bufsize)
 	kfree(old_buf);
 	return 0;
 }
+#endif  /*  0  */
 
 /*
  *  read bytes and encode to sequencer event if finished
@@ -517,8 +521,6 @@ static int extra_decode_xrpn(snd_midi_event_t *dev, unsigned char *buf, int coun
  
 EXPORT_SYMBOL(snd_midi_event_new);
 EXPORT_SYMBOL(snd_midi_event_free);
-EXPORT_SYMBOL(snd_midi_event_resize_buffer);
-EXPORT_SYMBOL(snd_midi_event_init);
 EXPORT_SYMBOL(snd_midi_event_reset_encode);
 EXPORT_SYMBOL(snd_midi_event_reset_decode);
 EXPORT_SYMBOL(snd_midi_event_no_status);

sound/core/seq/seq_queue.c

@@ -672,7 +672,8 @@ static void queue_broadcast_event(queue_t *q, snd_seq_event_t *ev, int atomic, i
  * process a received queue-control event.
  * this function is exported for seq_sync.c.
  */
-void snd_seq_queue_process_event(queue_t *q, snd_seq_event_t *ev, int atomic, int hop)
+static void snd_seq_queue_process_event(queue_t *q, snd_seq_event_t *ev,
+					int atomic, int hop)
 {
 	switch (ev->type) {
 	case SNDRV_SEQ_EVENT_START:

sound/core/seq/seq_queue.h

@@ -111,7 +111,6 @@ int snd_seq_queue_use(int queueid, int client, int use);
 int snd_seq_queue_is_used(int queueid, int client);
 
 int snd_seq_control_queue(snd_seq_event_t *ev, int atomic, int hop);
-void snd_seq_queue_process_event(queue_t *q, snd_seq_event_t *ev, int atomic, int hop);
 
 /*
  * 64bit division - for sync stuff..

sound/core/seq/seq_timer.c

@@ -36,7 +36,8 @@ extern int seq_default_timer_resolution;
 
 #define SKEW_BASE	0x10000	/* 16bit shift */
 
-void snd_seq_timer_set_tick_resolution(seq_timer_tick_t *tick, int tempo, int ppq, int nticks)
+static void snd_seq_timer_set_tick_resolution(seq_timer_tick_t *tick,
+					      int tempo, int ppq, int nticks)
 {
 	if (tempo < 1000000)
 		tick->resolution = (tempo * 1000) / ppq;

sound/core/seq/seq_timer.h

@@ -64,8 +64,6 @@ extern seq_timer_t *snd_seq_timer_new(void);
 /* delete timer (destructor) */
 extern void snd_seq_timer_delete(seq_timer_t **tmr);
 
-void snd_seq_timer_set_tick_resolution(seq_timer_tick_t *tick, int tempo, int ppq, int nticks);
-
 /* */
 static inline void snd_seq_timer_update_tick(seq_timer_tick_t *tick, unsigned long resolution)
 {

sound/core/seq/seq_virmidi.c

@@ -110,7 +110,7 @@ static int snd_virmidi_dev_receive_event(snd_virmidi_dev_t *rdev, snd_seq_event_
  * handler of a remote port which is attached to the virmidi via
  * SNDRV_VIRMIDI_SEQ_ATTACH.
  */
-/* exported */
+#if 0
 int snd_virmidi_receive(snd_rawmidi_t *rmidi, snd_seq_event_t *ev)
 {
 	snd_virmidi_dev_t *rdev;
@@ -118,6 +118,7 @@ int snd_virmidi_receive(snd_rawmidi_t *rmidi, snd_seq_event_t *ev)
 	rdev = rmidi->private_data;
 	return snd_virmidi_dev_receive_event(rdev, ev);
 }
+#endif  /*  0  */
 
 /*
  * event handler of virmidi port
@@ -548,4 +549,3 @@ module_init(alsa_virmidi_init)
 module_exit(alsa_virmidi_exit)
 
 EXPORT_SYMBOL(snd_virmidi_new);
-EXPORT_SYMBOL(snd_virmidi_receive);

sound/core/sound.c

@@ -431,7 +431,6 @@ EXPORT_SYMBOL(snd_card_pci_resume);
 EXPORT_SYMBOL(snd_device_new);
 EXPORT_SYMBOL(snd_device_register);
 EXPORT_SYMBOL(snd_device_free);
-EXPORT_SYMBOL(snd_device_free_all);
   /* isadma.c */
 #ifdef CONFIG_ISA
 EXPORT_SYMBOL(snd_dma_program);

sound/core/timer.c

@@ -845,7 +845,7 @@ int snd_timer_dev_register(snd_device_t *dev)
 	return 0;
 }
 
-int snd_timer_unregister(snd_timer_t *timer)
+static int snd_timer_unregister(snd_timer_t *timer)
 {
 	struct list_head *p, *n;
 	snd_timer_instance_t *ti;
@@ -946,11 +946,6 @@ struct snd_timer_system_private {
 	unsigned long correction;
 };
 
-unsigned int snd_timer_system_resolution(void)
-{
-	return 1000000000L / HZ;
-}
-
 static void snd_timer_s_function(unsigned long data)
 {
 	snd_timer_t *timer = (snd_timer_t *)data;
@@ -1938,4 +1933,3 @@ EXPORT_SYMBOL(snd_timer_global_free);
 EXPORT_SYMBOL(snd_timer_global_register);
 EXPORT_SYMBOL(snd_timer_global_unregister);
 EXPORT_SYMBOL(snd_timer_interrupt);
-EXPORT_SYMBOL(snd_timer_system_resolution);