From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
When CONFIG_SERIAL_IMX_CONSOLE is not selected the following build warnings
appear:
drivers/tty/serial/imx.c:274:13: warning: 'imx_port_ucrs_save' defined but not used [-Wunused-function]
drivers/tty/serial/imx.c:283:13: warning: 'imx_port_ucrs_restore' defined but not used [-Wunused-function]
imx_port_ucrs_save() and imx_port_ucrs_restore() are only used when
CONFIG_CONSOLE_POLL or CONFIG_SERIAL_IMX_CONSOLE are selected, so protect these
functions declaration with a proper ifdef.
Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
---
Changes since v2:
- Do the same as in v1
drivers/tty/serial/imx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index a07e94f..981749f 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -272,6 +272,7 @@ static inline int is_imx21_uart(struct imx_port *sport)
/*
* Save and restore functions for UCR1, UCR2 and UCR3 registers
*/
+#if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_IMX_CONSOLE)
static void imx_port_ucrs_save(struct uart_port *port,
struct imx_port_ucrs *ucr)
{
@@ -289,6 +290,7 @@ static void imx_port_ucrs_restore(struct uart_port *port,
writel(ucr->ucr2, port->membase + UCR2);
writel(ucr->ucr3, port->membase + UCR3);
}
+#endif
/*
* Handle any change of modem status signal since we were last called.
--
1.8.1.2
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