* proc file interface
  */
 #define SND_MEM_PROC_FILE      "driver/snd-page-alloc"
-struct proc_dir_entry *snd_mem_proc;
+static struct proc_dir_entry *snd_mem_proc;
 
 static int snd_mem_proc_read(char *page, char **start, off_t off,
                             int count, int *eof, void *data)
 
        return snd_pcm_hw_param_value(params, var, NULL);
 }
 
-int _snd_pcm_hw_param_mask(snd_pcm_hw_params_t *params,
-                          snd_pcm_hw_param_t var, const snd_mask_t *val)
+static int _snd_pcm_hw_param_mask(snd_pcm_hw_params_t *params,
+                                 snd_pcm_hw_param_t var, const snd_mask_t *val)
 {
        int changed;
        assert(hw_is_mask(var));
 
        return 0;
 }
 
-int snd_timer_dev_free(snd_device_t *device)
+static int snd_timer_dev_free(snd_device_t *device)
 {
        snd_timer_t *timer = device->device_data;
        return snd_timer_free(timer);
 }
 
-int snd_timer_dev_register(snd_device_t *dev)
+static int snd_timer_dev_register(snd_device_t *dev)
 {
        snd_timer_t *timer = dev->device_data;
        snd_timer_t *timer1;
 
 
 #endif  /*  0  */
 
-unsigned int snd_gf1_i_read_addr(snd_gus_card_t * gus,
-                                unsigned char reg, short w_16bit)
+#ifdef CONFIG_SND_DEBUG
+static unsigned int snd_gf1_i_read_addr(snd_gus_card_t * gus,
+                                       unsigned char reg, short w_16bit)
 {
        unsigned int res;
        unsigned long flags;
        spin_unlock_irqrestore(&gus->reg_lock, flags);
        return res;
 }
+#endif
 
 /*
 
 
 AC97_SINGLE("Front Playback Switch", AC97_WM97XX_FMIXER_VOL, 15, 1, 1),
 };
 
-int patch_wolfson_wm9703_specific(ac97_t * ac97)
+static int patch_wolfson_wm9703_specific(ac97_t * ac97)
 {
        /* This is known to work for the ViewSonic ViewPad 1000
         * Randolph Bentson <bentson@holmsjoen.com>
 AC97_DOUBLE("Surround Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
 };
 
-int patch_wolfson_wm9704_specific(ac97_t * ac97)
+static int patch_wolfson_wm9704_specific(ac97_t * ac97)
 {
        int err, i;
        for (i = 0; i < ARRAY_SIZE(wm9704_snd_ac97_controls); i++) {
        return 0;
 }
 
-int patch_wolfson_wm9705_specific(ac97_t * ac97)
+static int patch_wolfson_wm9705_specific(ac97_t * ac97)
 {
        int err, i;
        for (i = 0; i < ARRAY_SIZE(wm97xx_snd_ac97_controls); i++) {
 AC97_SINGLE("Mono ZC Switch", AC97_MASTER_MONO, 7, 1, 0),
 };
 
-int patch_wolfson_wm9711_specific(ac97_t * ac97)
+static int patch_wolfson_wm9711_specific(ac97_t * ac97)
 {
        int err, i;
        
 
        return 0;
 }
 
-struct ali_pcm_description ali_pcms[] = {
+static struct ali_pcm_description ali_pcms[] = {
        { "ALI 5451", ALI_CHANNELS, 1, &snd_ali_playback_ops, &snd_ali_capture_ops },
        { "ALI 5451 modem", 1, 1, &snd_ali_modem_playback_ops, &snd_ali_modem_capture_ops }
 };
 
        return 0;
 }
 
-snd_rawmidi_ops_t snd_hdspm_midi_output =
+static snd_rawmidi_ops_t snd_hdspm_midi_output =
 {
        .open =         snd_hdspm_midi_output_open,
        .close =        snd_hdspm_midi_output_close,
        .trigger =      snd_hdspm_midi_output_trigger,
 };
 
-snd_rawmidi_ops_t snd_hdspm_midi_input =
+static snd_rawmidi_ops_t snd_hdspm_midi_input =
 {
        .open =         snd_hdspm_midi_input_open,
        .close =        snd_hdspm_midi_input_close,