From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jingoo Han Date: Fri, 07 Jun 2013 01:39:20 +0000 Subject: [PATCH] backlight: add CONFIG_PM_SLEEP to suspend/resume functions Message-Id: <000201ce631f$d4ad0d50$7e0727f0$@samsung.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: 'Andrew Morton' Cc: 'Shuah Khan' , linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, shuahkhan@gmail.com, rpurdie@rpsys.net, FlorianSchandinat@gmx.de, plagnioj@jcrosoft.com, tomi.valkeinen@ti.com, rafael.j.wysocki@intel.com, 'Arnd Bergmann' , 'Jingoo Han' Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. drivers/video/backlight/backlight.c:211:12: warning: 'backlight_suspend' defined but not used [-Wunused-function] drivers/video/backlight/backlight.c:225:12: warning: 'backlight_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han --- drivers/video/backlight/backlight.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index cedbcbe..750807c 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -208,6 +208,7 @@ static ssize_t backlight_show_actual_brightness(struct device *dev, static struct class *backlight_class; +#ifdef CONFIG_PM_SLEEP static int backlight_suspend(struct device *dev) { struct backlight_device *bd = to_backlight_device(dev); @@ -235,6 +236,7 @@ static int backlight_resume(struct device *dev) return 0; } +#endif static SIMPLE_DEV_PM_OPS(backlight_class_dev_pm_ops, backlight_suspend, backlight_resume); -- 1.7.10.4