usb: ehci-atmel: use __maybe_unused to hide pm functions
The ehci-atmel driver uses #ifdef to check for CONFIG_PM, but then uses SIMPLE_DEV_PM_OPS, which leaves the references out when CONFIG_PM_SLEEP is not defined, so we get a warning with PM=y && PM_SLEEP=n: drivers/usb/host/ehci-atmel.c:189:12: error: 'ehci_atmel_drv_suspend' defined but not used [-Werror=unused-function] drivers/usb/host/ehci-atmel.c:203:12: error: 'ehci_atmel_drv_resume' defined but not used [-Werror=unused-function] This removes the incorrect #ifdef and instead uses a __maybe_unused annotation to let the compiler know it can silently drop the function definition. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -185,8 +185,7 @@ static int ehci_atmel_drv_remove(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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#ifdef CONFIG_PM
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static int __maybe_unused ehci_atmel_drv_suspend(struct device *dev)
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static int ehci_atmel_drv_suspend(struct device *dev)
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{
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{
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struct usb_hcd *hcd = dev_get_drvdata(dev);
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struct usb_hcd *hcd = dev_get_drvdata(dev);
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struct atmel_ehci_priv *atmel_ehci = hcd_to_atmel_ehci_priv(hcd);
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struct atmel_ehci_priv *atmel_ehci = hcd_to_atmel_ehci_priv(hcd);
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@ -200,7 +199,7 @@ static int ehci_atmel_drv_suspend(struct device *dev)
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return 0;
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return 0;
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}
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}
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static int ehci_atmel_drv_resume(struct device *dev)
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static int __maybe_unused ehci_atmel_drv_resume(struct device *dev)
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{
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{
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struct usb_hcd *hcd = dev_get_drvdata(dev);
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struct usb_hcd *hcd = dev_get_drvdata(dev);
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struct atmel_ehci_priv *atmel_ehci = hcd_to_atmel_ehci_priv(hcd);
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struct atmel_ehci_priv *atmel_ehci = hcd_to_atmel_ehci_priv(hcd);
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@ -208,7 +207,6 @@ static int ehci_atmel_drv_resume(struct device *dev)
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atmel_start_clock(atmel_ehci);
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atmel_start_clock(atmel_ehci);
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return ehci_resume(hcd, false);
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return ehci_resume(hcd, false);
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}
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}
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#endif
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#ifdef CONFIG_OF
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#ifdef CONFIG_OF
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static const struct of_device_id atmel_ehci_dt_ids[] = {
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static const struct of_device_id atmel_ehci_dt_ids[] = {
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