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Subject[PATCH 02/20] usb/host: ehci-spear: Use pm_ptr() macro
Date
Use the newly introduced pm_ptr() macro, and mark the suspend/resume
functions __maybe_unused. These functions can then be moved outside the
CONFIG_PM_SUSPEND block, and the compiler can then process them and
detect build failures independently of the config. If unused, they will
simply be discarded by the compiler.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
drivers/usb/host/ehci-spear.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index add796c78561..3694e450a11a 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -34,8 +34,7 @@ struct spear_ehci {

static struct hc_driver __read_mostly ehci_spear_hc_driver;

-#ifdef CONFIG_PM_SLEEP
-static int ehci_spear_drv_suspend(struct device *dev)
+static int __maybe_unused ehci_spear_drv_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
bool do_wakeup = device_may_wakeup(dev);
@@ -43,14 +42,13 @@ static int ehci_spear_drv_suspend(struct device *dev)
return ehci_suspend(hcd, do_wakeup);
}

-static int ehci_spear_drv_resume(struct device *dev)
+static int __maybe_unused ehci_spear_drv_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);

ehci_resume(hcd, false);
return 0;
}
-#endif /* CONFIG_PM_SLEEP */

static SIMPLE_DEV_PM_OPS(ehci_spear_pm_ops, ehci_spear_drv_suspend,
ehci_spear_drv_resume);
@@ -155,7 +153,7 @@ static struct platform_driver spear_ehci_hcd_driver = {
.driver = {
.name = "spear-ehci",
.bus = &platform_bus_type,
- .pm = &ehci_spear_pm_ops,
+ .pm = pm_ptr(&ehci_spear_pm_ops),
.of_match_table = spear_ehci_id_table,
}
};
--
2.28.0
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