[PATCH] drm/tegra: mark t186 display hub PM functions __maybe_unused

Arnd Bergmann arnd at arndb.de
Fri Dec 15 12:51:52 UTC 2017

The newly introduced driver has optional suspend/resume functions,
causing a warning when CONFIG_PM is disabled:

drivers/gpu/drm/tegra/hub.c:749:12: error: 'tegra_display_hub_resume' defined but not used [-Werror=unused-function]
drivers/gpu/drm/tegra/hub.c:733:12: error: 'tegra_display_hub_suspend' defined but not used [-Werror=unused-function]

This marks them __maybe_unused to shut up the warnings.

Fixes: c4755fb9064f ("drm/tegra: Add Tegra186 display hub support")
Signed-off-by: Arnd Bergmann <arnd at arndb.de>
 drivers/gpu/drm/tegra/hub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tegra/hub.c b/drivers/gpu/drm/tegra/hub.c
index cccd44711d68..f4911feda9ff 100644
--- a/drivers/gpu/drm/tegra/hub.c
+++ b/drivers/gpu/drm/tegra/hub.c
@@ -730,7 +730,7 @@ static int tegra_display_hub_remove(struct platform_device *pdev)
 	return err;
-static int tegra_display_hub_suspend(struct device *dev)
+static int __maybe_unused tegra_display_hub_suspend(struct device *dev)
 	struct tegra_display_hub *hub = dev_get_drvdata(dev);
 	int err;
@@ -746,7 +746,7 @@ static int tegra_display_hub_suspend(struct device *dev)
 	return 0;
-static int tegra_display_hub_resume(struct device *dev)
+static int __maybe_unused tegra_display_hub_resume(struct device *dev)
 	struct tegra_display_hub *hub = dev_get_drvdata(dev);
 	int err;

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