[PATCH 1/3] [media] s5p_cec: mark suspend/resume as __maybe_unused

From: Arnd Bergmann
Date: Wed Jun 29 2016 - 10:25:50 EST


The suspend/resume functions in the s5p-cec driver are only
referenced when CONFIG_PM is enabled, so we get a warning
about unused functions otherwise:

drivers/staging/media/s5p-cec/s5p_cec.c:260:12: error: 's5p_cec_resume' defined but not used [-Werror=unused-function]
static int s5p_cec_resume(struct device *dev)
^~~~~~~~~~~~~~
drivers/staging/media/s5p-cec/s5p_cec.c:253:12: error: 's5p_cec_suspend' defined but not used [-Werror=unused-function]
static int s5p_cec_suspend(struct device *dev)

This marks them as __maybe_unused to avoid the warning without
having to introduce an extra #ifdef.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/staging/media/s5p-cec/s5p_cec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/s5p-cec/s5p_cec.c b/drivers/staging/media/s5p-cec/s5p_cec.c
index f90b7c4e48fe..78333273c4e5 100644
--- a/drivers/staging/media/s5p-cec/s5p_cec.c
+++ b/drivers/staging/media/s5p-cec/s5p_cec.c
@@ -250,14 +250,14 @@ static int s5p_cec_runtime_resume(struct device *dev)
return 0;
}

-static int s5p_cec_suspend(struct device *dev)
+static int __maybe_unused s5p_cec_suspend(struct device *dev)
{
if (pm_runtime_suspended(dev))
return 0;
return s5p_cec_runtime_suspend(dev);
}

-static int s5p_cec_resume(struct device *dev)
+static int __maybe_unused s5p_cec_resume(struct device *dev)
{
if (pm_runtime_suspended(dev))
return 0;
--
2.9.0