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Subject[PATCH] serial: sunzilog: Mark sunzilog_putchar() __maybe_unused
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If CONSOLE_POLL=n, CONFIG_SERIAL_SUNZILOG_CONSOLE=n, and CONFIG_SERIO=m:

drivers/tty/serial/sunzilog.c:1128:13: error: ‘sunzilog_putchar’ defined but not used [-Werror=unused-function]
1128 | static void sunzilog_putchar(struct uart_port *port, int ch)
| ^~~~~~~~~~~~~~~~

Fix this by marking sunzilog_putchar() __maybe_unused.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
One more casualty of CONFIG_WERROR=y.
---
drivers/tty/serial/sunzilog.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 1a54e3e52ed630b6..b714b00d2dadd44f 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1125,7 +1125,7 @@ static void sunzilog_free_tables(void)

#define ZS_PUT_CHAR_MAX_DELAY 2000 /* 10 ms */

-static void sunzilog_putchar(struct uart_port *port, int ch)
+static void __maybe_unused sunzilog_putchar(struct uart_port *port, int ch)
{
struct zilog_channel __iomem *channel = ZILOG_CHANNEL_FROM_PORT(port);
int loops = ZS_PUT_CHAR_MAX_DELAY;
--
2.25.1
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