On 2020/8/3 20:51, Dmitry Osipenko wrote: > 03.08.2020 14:59, YueHaibing пишет: >> If CONFIG_PM is not set, gcc warns: >> >> drivers/staging/media/tegra-vde/vde.c:916:12: >> warning: 'tegra_vde_runtime_suspend' defined but not used [-Wunused-function] >> >> Make it __maybe_unused to fix this. >> >> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> >> --- >> drivers/staging/media/tegra-vde/vde.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/staging/media/tegra-vde/vde.c b/drivers/staging/media/tegra-vde/vde.c >> index a3c24d96d5b9..2d043d518eef 100644 >> --- a/drivers/staging/media/tegra-vde/vde.c >> +++ b/drivers/staging/media/tegra-vde/vde.c >> @@ -913,7 +913,7 @@ static irqreturn_t tegra_vde_isr(int irq, void *data) >> return IRQ_HANDLED; >> } >> >> -static int tegra_vde_runtime_suspend(struct device *dev) >> +static __maybe_unused int tegra_vde_runtime_suspend(struct device *dev) >> { >> struct tegra_vde *vde = dev_get_drvdata(dev); >> int err; >> > > Hello Yue, > > Shouldn't the tegra_vde_runtime_resume() be marked as well? No, tegra_vde_runtime_resume() always be called by tegra_vde_shutdown(). > > . >