ALSA sound/pcmcia/pdaudiocf/pdaudiocf_core.c: make some code static

@@ -130,8 +130,6 @@
 	return inw(chip->port + reg);
 }
 
-unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg);
-void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val);
 pdacf_t *snd_pdacf_create(snd_card_t *card);
 int snd_pdacf_ak4117_create(pdacf_t *pdacf);
 void snd_pdacf_powerdown(pdacf_t *chip);

@@ -28,7 +28,7 @@
 /*
  *
  */
-unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg)
+static unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg)
 {
 	pdacf_t *chip = private_data;
 	unsigned long timeout;

@@ -60,7 +60,7 @@
 	return res;
 }
 
-void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val)
+static void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val)
 {
 	pdacf_t *chip = private_data;
 	unsigned long timeout;