From: Wei Yongjun <weiyongjun1@xxxxxxxxxx> The function cdns_imx_system_resume() may have no callers depending on configuration, so it must be marked __maybe_unused to avoid harmless warning: drivers/usb/cdns3/cdns3-imx.c:378:12: warning: 'cdns_imx_system_resume' defined but not used [-Wunused-function] 378 | static int cdns_imx_system_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~ Fixes: 67982dfa59de ("usb: cdns3: imx: add power lost support for system resume") Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> --- drivers/usb/cdns3/cdns3-imx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/cdns3/cdns3-imx.c b/drivers/usb/cdns3/cdns3-imx.c index 708b51cc5844..74e758dc0895 100644 --- a/drivers/usb/cdns3/cdns3-imx.c +++ b/drivers/usb/cdns3/cdns3-imx.c @@ -375,7 +375,7 @@ static inline bool cdns_imx_is_power_lost(struct cdns_imx *data) return false; } -static int cdns_imx_system_resume(struct device *dev) +static int __maybe_unused cdns_imx_system_resume(struct device *dev) { struct cdns_imx *data = dev_get_drvdata(dev); int ret;