linux-kernel - [PATCH v2 2/4] tty: serial: 8250: 8250_port: Move prototypes to shared location

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Message-Id: <20201112105857.2078977-3-lee.jones@linaro.org>
Date:   Thu, 12 Nov 2020 10:58:55 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Mike Hudson <Exoray@...s.ca>, linux-serial@...r.kernel.org
Subject: [PATCH v2 2/4] tty: serial: 8250: 8250_port: Move prototypes to shared location

Fixes the following W=1 kernel build warning(s):

 drivers/tty/serial/8250/8250_port.c:349:14: warning: no previous prototype for ‘au_serial_in’ [-Wmissing-prototypes]
 drivers/tty/serial/8250/8250_port.c:359:6: warning: no previous prototype for ‘au_serial_out’ [-Wmissing-prototypes]

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jirislaby@...nel.org>
Cc: Mike Hudson <Exoray@...s.ca>
Cc: linux-serial@...r.kernel.org
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/tty/serial/8250/8250_early.c | 3 ---
 include/linux/serial_8250.h          | 5 +++++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index 70d7826788f53..c171ce6db6910 100644
--- a/drivers/tty/serial/8250/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -204,9 +204,6 @@ OF_EARLYCON_DECLARE(omap8250, "ti,omap4-uart", early_omap8250_setup);
 
 #ifdef CONFIG_SERIAL_8250_RT288X
 
-unsigned int au_serial_in(struct uart_port *p, int offset);
-void au_serial_out(struct uart_port *p, int offset, int value);
-
 static int __init early_au_setup(struct earlycon_device *dev, const char *opt)
 {
 	dev->port.serial_in = au_serial_in;
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 2b70f736b091d..9e655055112d9 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -187,4 +187,9 @@ extern void serial8250_set_isa_configurator(void (*v)
 					(int port, struct uart_port *up,
 						u32 *capabilities));
 
+#ifdef CONFIG_SERIAL_8250_RT288X
+unsigned int au_serial_in(struct uart_port *p, int offset);
+void au_serial_out(struct uart_port *p, int offset, int value);
+#endif
+
 #endif
-- 
2.25.1