On Thu, Apr 04, 2024 at 12:43:18PM +0530, Anand Moon wrote:
> Use the new PM macros for the suspend and resume functions to be
> automatically dropped by the compiler when CONFIG_PM are disabled,
> without having to use #ifdef guards. If CONFIG_PM unused,
> they will simply be discarded by the compiler.
>
> Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
> ---
> v2: add __maybe_unused to suspend/resume functions in case CONFIG_PM is
> disabled.
> dropped RUNTIME_PM_OPS
> ---
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> drivers/usb/host/ehci-exynos.c | 11 +++--------
> 1 file changed, 3 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
> index f00bfd0b13dc..4cfde1af32be 100644
> --- a/drivers/usb/host/ehci-exynos.c
> +++ b/drivers/usb/host/ehci-exynos.c
> @@ -236,8 +236,7 @@ static void exynos_ehci_remove(struct platform_device *pdev)
> usb_put_hcd(hcd);
> }
>
> -#ifdef CONFIG_PM
> -static int exynos_ehci_suspend(struct device *dev)
> +static int __maybe_unused exynos_ehci_suspend(struct device *dev)
> {
> struct usb_hcd *hcd = dev_get_drvdata(dev);
> struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
> @@ -256,7 +255,7 @@ static int exynos_ehci_suspend(struct device *dev)
> return rc;
> }
>
> -static int exynos_ehci_resume(struct device *dev)
> +static int __maybe_unused exynos_ehci_resume(struct device *dev)
> {
> struct usb_hcd *hcd = dev_get_drvdata(dev);
> struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
> @@ -279,10 +278,6 @@ static int exynos_ehci_resume(struct device *dev)
> ehci_resume(hcd, false);
> return 0;
> }
> -#else
> -#define exynos_ehci_suspend NULL
> -#define exynos_ehci_resume NULL
> -#endif
>
> static const struct dev_pm_ops exynos_ehci_pm_ops = {
> .suspend = exynos_ehci_suspend,
> @@ -303,7 +298,7 @@ static struct platform_driver exynos_ehci_driver = {
> .shutdown = usb_hcd_platform_shutdown,
> .driver = {
> .name = "exynos-ehci",
> - .pm = &exynos_ehci_pm_ops,
> + .pm = pm_ptr(&exynos_ehci_pm_ops),
> .of_match_table = of_match_ptr(exynos_ehci_match),
> }
> };
> --
> 2.44.0
>
