From 8f975fe49dba5d15a828f34ad8ec3dc8beb60ca0 Mon Sep 17 00:00:00 2001 From: Baoyou Xie Date: Thu, 1 Sep 2016 19:43:31 +0800 Subject: [PATCH] tty/serial: mark __init early_smh_setup() static We get 1 warning when building kernel with W=1: drivers/tty/serial/earlycon-arm-semihost.c:56:12: warning: no previous prototype for 'early_smh_setup' [-Wmissing-prototypes] In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. so this patch marks this function with 'static'. Signed-off-by: Baoyou Xie Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/earlycon-arm-semihost.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/earlycon-arm-semihost.c b/drivers/tty/serial/earlycon-arm-semihost.c index 383db10fbb49..6bbeb699777c 100644 --- a/drivers/tty/serial/earlycon-arm-semihost.c +++ b/drivers/tty/serial/earlycon-arm-semihost.c @@ -53,7 +53,8 @@ static void smh_write(struct console *con, const char *s, unsigned n) uart_console_write(&dev->port, s, n, smh_putc); } -int __init early_smh_setup(struct earlycon_device *device, const char *opt) +static int +__init early_smh_setup(struct earlycon_device *device, const char *opt) { device->con->write = smh_write; return 0;