[PATCH] serial: pch_uart: fix compilation warning

[Luis Henriques]

Function wait_for_xmitr is invoked only on functions that either depend
on CONFIG_CONSOLE_POLL or CONFIG_SERIAL_PCH_UART_CONSOLE.

This patch fixes the following warning:

drivers/tty/serial/pch_uart.c:1504:13: warning: âwait_for_xmitrâ defined but not used [-Wunused-function]

Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
 drivers/tty/serial/pch_uart.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 572d481..1e22a49 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1498,6 +1498,7 @@ static int pch_uart_verify_port(struct uart_port *port,
 	return 0;
 }
 
+#if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_PCH_UART_CONSOLE)
 /*
  *	Wait for transmitter & holding register to empty
  */
@@ -1528,6 +1529,7 @@ static void wait_for_xmitr(struct eg20t_port *up, int bits)
 		}
 	}
 }
+#endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_PCH_UART_CONSOLE */
 
 #ifdef CONFIG_CONSOLE_POLL
 /*
-- 
1.8.3.2

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