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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.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211026080426.2444756-1-geert@linux-m68k.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven 2021-10-26 10:04:26 +02:00 committed by Greg Kroah-Hartman
parent 60f41e8484
commit 159f1f9e46
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/sunzilog.c
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@ -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;