Without CONFIG_PM_SLEEP, we get annoying warnings about unused functions: drivers/mailbox/tegra-hsp.c:782:12: warning: ‘tegra_hsp_resume’ defined but not used [-Wunused-function] static int tegra_hsp_resume(struct device *dev) ^~~~~~~~~~~~~~~~ Mark them as __maybe_unused to shut up the warning and silently drop the functions without having to add ugly #ifdefs. Fixes: 9a63f0f40599 ("mailbox: tegra-hsp: Add suspend/resume support") Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx> --- drivers/mailbox/tegra-hsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c index e443f6a2ec4b..b9ce823f79ab 100644 --- a/drivers/mailbox/tegra-hsp.c +++ b/drivers/mailbox/tegra-hsp.c @@ -779,7 +779,7 @@ static int tegra_hsp_probe(struct platform_device *pdev) return 0; } -static int tegra_hsp_resume(struct device *dev) +static __maybe_unused int tegra_hsp_resume(struct device *dev) { struct tegra_hsp *hsp = dev_get_drvdata(dev); unsigned int i; -- 2.19.2