4 files changed, 7 insertions, 7 deletions
diff --git a/src/stm/ao_i2c_stm.c b/src/stm/ao_i2c_stm.c
index c02bc5a5..8f549318 100644
--- a/src/stm/ao_i2c_stm.c
+++ b/src/stm/ao_i2c_stm.c
@@ -278,7 +278,7 @@ ao_i2c_send(void *block, uint16_t len, uint8_t index, uint8_t stop)
 	return true;
 }
 
-void
+static void
 ao_i2c_recv_dma_isr(int index)
 {
 	int		i;
@@ -374,7 +374,7 @@ ao_i2c_recv(void *block, uint16_t len, uint8_t index, uint8_t stop)
 	return ret;
 }
 
-void
+static void
 ao_i2c_channel_init(uint8_t index)
 {
 	struct stm_i2c	*stm_i2c = ao_i2c_stm_info[index].stm_i2c;
diff --git a/src/stm/ao_interrupt.c b/src/stm/ao_interrupt.c
index d8be3667..a98d799a 100644
--- a/src/stm/ao_interrupt.c
+++ b/src/stm/ao_interrupt.c
@@ -29,12 +29,12 @@ extern char __bss_start__, __bss_end__;
 
 /* Interrupt functions */
 
-void stm_halt_isr(void)
+static void stm_halt_isr(void)
 {
 	ao_panic(AO_PANIC_CRASH);
 }
 
-void stm_ignore_isr(void)
+static void stm_ignore_isr(void)
 {
 }
 
diff --git a/src/stm/ao_serial_stm.c b/src/stm/ao_serial_stm.c
index c1a2f1bd..7a552e5d 100644
--- a/src/stm/ao_serial_stm.c
+++ b/src/stm/ao_serial_stm.c
@@ -339,7 +339,7 @@ ao_serial2_set_speed(uint8_t speed)
 }
 
 #if HAS_SERIAL_SW_FLOW
-void
+static void
 ao_serial2_cts(void)
 {
 	_ao_usart_cts(&ao_stm_usart2);
diff --git a/src/stm/ao_usb_stm.c b/src/stm/ao_usb_stm.c
index d7cbd5b7..7f81e20e 100644
--- a/src/stm/ao_usb_stm.c
+++ b/src/stm/ao_usb_stm.c
@@ -829,7 +829,7 @@ stm_usb_lp_isr(void)
 }
 
 void
-stm_usb_fs_wkup(void)
+stm_usb_fs_wkup_isr(void)
 {
 	/* USB wakeup, just clear the bit for now */
 	stm_usb.istr &= ~(1 << STM_USB_ISTR_WKUP);
@@ -932,7 +932,7 @@ _ao_usb_out_recv(void)
 	_ao_usb_set_stat_rx(AO_USB_OUT_EPR, STM_USB_EPR_STAT_RX_VALID);
 }
 
-int
+static int
 _ao_usb_pollchar(void)
 {
 	uint8_t c;