[PATCH 2/3] drm/msm/mdp5: mark runtime_pm functions as __maybe_unused

From: Arnd Bergmann
Date: Thu Aug 03 2017 - 07:52:15 EST


When CONFIG_PM is disabled, we get harmless warnings about unused
functions:

drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c:1025:12: error: 'mdp5_runtime_resume' defined but not used [-Werror=unused-function]
static int mdp5_runtime_resume(struct device *dev)
^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c:1015:12: error: 'mdp5_runtime_suspend' defined but not used [-Werror=unused-function]
static int mdp5_runtime_suspend(struct device *dev)
^~~~~~~~~~~~~~~~~~~~

This marks both functions as __maybe_unused so the compiler
can drop them silently.

Fixes: d68fe15b1878 ("drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index 9f9d95f7c80f..f7c0698fec40 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -1012,7 +1012,7 @@ static int mdp5_dev_remove(struct platform_device *pdev)
return 0;
}

-static int mdp5_runtime_suspend(struct device *dev)
+static __maybe_unused int mdp5_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
@@ -1022,7 +1022,7 @@ static int mdp5_runtime_suspend(struct device *dev)
return mdp5_disable(mdp5_kms);
}

-static int mdp5_runtime_resume(struct device *dev)
+static __maybe_unused int mdp5_runtime_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct mdp5_kms *mdp5_kms = platform_get_drvdata(pdev);
--
2.9.0