various: add some 'static', save 100 bytes

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

dev/endpoint.c

@@ -31,14 +31,14 @@ static int autoneg_enabled;
 volatile struct EP_WB *EP;
 
 /* functions for accessing PCS (MDIO) registers */
-uint16_t pcs_read(int location)
+static uint16_t pcs_read(int location)
 {
 	EP->MDIO_CR = EP_MDIO_CR_ADDR_W(location >> 2);
 	while ((EP->MDIO_ASR & EP_MDIO_ASR_READY) == 0) ;
 	return EP_MDIO_ASR_RDATA_R(EP->MDIO_ASR) & 0xffff;
 }
 
-void pcs_write(int location, int value)
+static void pcs_write(int location, int value)
 {
 	EP->MDIO_CR = EP_MDIO_CR_ADDR_W(location >> 2)
 		    | EP_MDIO_CR_DATA_W(value)

dev/uart.c

@@ -44,7 +44,7 @@ int uart_write_string(const char *s)
 
 int puts(const char *s) __attribute__((alias("uart_write_string")));
 
-int uart_poll()
+static int uart_poll()
 {
 	return uart->SR & UART_SR_RX_RDY;
 }

include/endpoint.h

@@ -29,7 +29,4 @@ int ep_cal_pattern_disable();
 
 void pfilter_init_default();
 
-uint16_t pcs_read(int location);
-void pcs_write(int location, int value);
-
 #endif

wrc_main.c

@@ -40,7 +40,7 @@ int32_t sfp_deltaTx = 46407;
 int32_t sfp_deltaRx = 167843;
 uint32_t cal_phase_transition = 2389;
 
-void wrc_initialize()
+static void wrc_initialize()
 {
 	uint8_t mac_addr[6];
 
@@ -89,7 +89,7 @@ void wrc_initialize()
 #define LINK_UP 3
 #define LINK_DOWN 4
 
-int wrc_check_link()
+static int wrc_check_link()
 {
 	static int prev_link_state = -1;
 	int link_state = ep_link_up(NULL);
@@ -152,7 +152,7 @@ static void ui_update()
 extern uint32_t _endram;
 #define ENDRAM_MAGIC 0xbadc0ffe
 
-void check_stack(void)
+static void check_stack(void)
 {
 	while (_endram != ENDRAM_MAGIC) {
 		mprintf("Stack overflow!\n");