From: Wei Yongjun <weiyongjun1@xxxxxxxxxx> The function e1000e_pm_prepare() may have no callers depending on configuration, so it must be marked __maybe_unused to avoid harmless warning: drivers/net/ethernet/intel/e1000e/netdev.c:6926:12: warning: 'e1000e_pm_prepare' defined but not used [-Wunused-function] 6926 | static int e1000e_pm_prepare(struct device *dev) | ^~~~~~~~~~~~~~~~~ Fixes: ccf8b940e5fd ("e1000e: Leverage direct_complete to speed up s2ram") Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> --- drivers/net/ethernet/intel/e1000e/netdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index f1c9debd9f3b..d2e4653536c5 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6923,7 +6923,7 @@ static int __e1000_resume(struct pci_dev *pdev) return 0; } -static int e1000e_pm_prepare(struct device *dev) +static __maybe_unused int e1000e_pm_prepare(struct device *dev) { return pm_runtime_suspended(dev) && pm_suspend_via_firmware();