The suspend/resume functions have no callers depending on configuration, so they must be marked __maybe_unused to avoid these harmless warnings: drivers/memory/tegra/tegra186.c:1578:12: error: 'tegra186_mc_resume' defined but not used [-Werror=unused-function] 1578 | static int tegra186_mc_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~ drivers/memory/tegra/tegra186.c:1573:12: error: 'tegra186_mc_suspend' defined but not used [-Werror=unused-function] 1573 | static int tegra186_mc_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~ Fixes: 177602b00641 ("memory: tegra: Add system sleep support") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/memory/tegra/tegra186.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c index 5d53f11ca7b6..e25c954dde2e 100644 --- a/drivers/memory/tegra/tegra186.c +++ b/drivers/memory/tegra/tegra186.c @@ -1570,12 +1570,12 @@ static const struct of_device_id tegra186_mc_of_match[] = { }; MODULE_DEVICE_TABLE(of, tegra186_mc_of_match); -static int tegra186_mc_suspend(struct device *dev) +static int __maybe_unused tegra186_mc_suspend(struct device *dev) { return 0; } -static int tegra186_mc_resume(struct device *dev) +static int __maybe_unused tegra186_mc_resume(struct device *dev) { struct tegra186_mc *mc = dev_get_drvdata(dev); -- 2.26.0