commit b51e3f5ad5b2618702d689942dfaf7b15ea5eba4
author Paul Bolle <pebolle@tiscali.nl> Tue Feb 03 21:05:50 2015 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Sat Mar 07 03:13:07 2015 +0100
tree 0752c7c0e3d6b79f8f776a2263cf2ee2fccd9604
parent ad3d4fdc8ee6d268d90d1a29bccd5318fa071cab

sprd_serial: compile sprd_suspend and sprd_resume conditionally

Building sprd_serial.o when CONFIG_PM_SLEEP is not defined triggers
these warnings:
    drivers/tty/serial/sprd_serial.c:755:12: warning: ‘sprd_suspend’ defined but not used [-Wunused-function]
     static int sprd_suspend(struct device *dev)
                ^
    drivers/tty/serial/sprd_serial.c:764:12: warning: ‘sprd_resume’ defined but not used [-Wunused-function]
     static int sprd_resume(struct device *dev)
                ^

Let's compile these functions only when CONFIG_PM_SLEEP is defined.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/sprd_serial.c

diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index 594b633..be3ed3f 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -752,6 +752,7 @@
 	return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int sprd_suspend(struct device *dev)
 {
 	struct sprd_uart_port *sup = dev_get_drvdata(dev);
@@ -769,6 +770,7 @@
 
 	return 0;
 }
+#endif
 
 static SIMPLE_DEV_PM_OPS(sprd_pm_ops, sprd_suspend, sprd_resume);