4 files changed, 4 insertions, 4 deletions
diff --git a/src/stmf0/ao_arch.h b/src/stmf0/ao_arch.h
index 22e706b2..8256ebaa 100644
--- a/src/stmf0/ao_arch.h
+++ b/src/stmf0/ao_arch.h
@@ -127,7 +127,7 @@ void ao_lcd_font_string(char *s);
 extern const uint32_t	ao_radio_cal;
 
 void
-ao_adc_init();
+ao_adc_init(void);
 
 /* ADC maximum reported value */
 #define AO_ADC_MAX			4095
diff --git a/src/stmf0/ao_arch_funcs.h b/src/stmf0/ao_arch_funcs.h
index f455ed06..b2ce77a0 100644
--- a/src/stmf0/ao_arch_funcs.h
+++ b/src/stmf0/ao_arch_funcs.h
@@ -381,7 +381,7 @@ ao_arch_irqrestore(uint32_t primask) {
 }
 
 static inline void
-ao_arch_memory_barrier() {
+ao_arch_memory_barrier(void) {
 	asm volatile("" ::: "memory");
 }
 
diff --git a/src/stmf0/ao_exti.h b/src/stmf0/ao_exti.h
index 36c3f7ca..1d19a48f 100644
--- a/src/stmf0/ao_exti.h
+++ b/src/stmf0/ao_exti.h
@@ -36,7 +36,7 @@ void
 ao_exti_set_mode(struct stm_gpio *gpio, uint8_t pin, uint8_t mode);
 
 void
-ao_exti_set_callback(struct stm_gpio *gpio, uint8_t pin, void (*callback)());
+ao_exti_set_callback(struct stm_gpio *gpio, uint8_t pin, void (*callback)(void));
 
 void
 ao_exti_enable(struct stm_gpio *gpio, uint8_t pin);
diff --git a/src/stmf0/ao_exti_stm.c b/src/stmf0/ao_exti_stm.c
index 910a36f2..77c59d05 100644
--- a/src/stmf0/ao_exti_stm.c
+++ b/src/stmf0/ao_exti_stm.c
@@ -123,7 +123,7 @@ ao_exti_set_mode(struct stm_gpio *gpio, uint8_t pin, uint8_t mode) {
 }
 
 void
-ao_exti_set_callback(struct stm_gpio *gpio, uint8_t pin, void (*callback)()) {
+ao_exti_set_callback(struct stm_gpio *gpio, uint8_t pin, void (*callback)(void)) {
 	(void) gpio;
 	ao_exti_callback[pin] = callback;
 }