uart: using inline for a not trivial function actually saves 16 flash bytes

d-a-v · d-a-v · commit 4a680a065998 · 2018-03-21T17:28:55.000+01:00
diff --git a/cores/esp8266/uart.c b/cores/esp8266/uart.c
@@ -214,8 +214,7 @@ void uart_stop_isr(uart_t* uart)
     ETS_UART_INTR_ATTACH(NULL, NULL);
 }
 
-
-void uart_do_write_char(uart_t* uart, char c)
+inline void uart_do_write_char(uart_t* uart, char c)
 {
     while((USS(uart->uart_nr) >> USTXC) >= 0x7f);
     USF(uart->uart_nr) = c;

Original file line number	Diff line number	Diff line change
`@@ -214,8 +214,7 @@ void uart_stop_isr(uart_t* uart)`
`214`	`214`	`ETS_UART_INTR_ATTACH(NULL, NULL);`
`215`	`215`	`}`
`216`	`216`
`217`		`-`
`218`		`-void uart_do_write_char(uart_t* uart, char c)`
	`217`	`+inline void uart_do_write_char(uart_t* uart, char c)`
`219`	`218`	`{`
`220`	`219`	`while((USS(uart->uart_nr) >> USTXC) >= 0x7f);`
`221`	`220`	`USF(uart->uart_nr) = c;`