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Subject[PATCH] usb: dwc3: qcom: mark PM functions as __maybe_unused
Date
The #ifdef guards around these are wrong, resulting in warnings
in certain configurations:

drivers/usb/dwc3/dwc3-qcom.c:244:12: error: 'dwc3_qcom_resume' defined but not used [-Werror=unused-function]
static int dwc3_qcom_resume(struct dwc3_qcom *qcom)
^~~~~~~~~~~~~~~~
drivers/usb/dwc3/dwc3-qcom.c:223:12: error: 'dwc3_qcom_suspend' defined but not used [-Werror=unused-function]
static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)

This replaces the guards with __maybe_unused annotations to shut up
the warnings and give better compile time coverage.

Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/usb/dwc3/dwc3-qcom.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 8abb6f31389d..d7a4728b48d5 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -548,8 +548,7 @@ static int dwc3_qcom_remove(struct platform_device *pdev)
return 0;
}

-#ifdef CONFIG_PM_SLEEP
-static int dwc3_qcom_pm_suspend(struct device *dev)
+static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev)
{
struct dwc3_qcom *qcom = dev_get_drvdata(dev);
int ret = 0;
@@ -561,7 +560,7 @@ static int dwc3_qcom_pm_suspend(struct device *dev)
return ret;
}

-static int dwc3_qcom_pm_resume(struct device *dev)
+static int __maybe_unused dwc3_qcom_pm_resume(struct device *dev)
{
struct dwc3_qcom *qcom = dev_get_drvdata(dev);
int ret;
@@ -572,23 +571,20 @@ static int dwc3_qcom_pm_resume(struct device *dev)

return ret;
}
-#endif

-#ifdef CONFIG_PM
-static int dwc3_qcom_runtime_suspend(struct device *dev)
+static int __maybe_unused dwc3_qcom_runtime_suspend(struct device *dev)
{
struct dwc3_qcom *qcom = dev_get_drvdata(dev);

return dwc3_qcom_suspend(qcom);
}

-static int dwc3_qcom_runtime_resume(struct device *dev)
+static int __maybe_unused dwc3_qcom_runtime_resume(struct device *dev)
{
struct dwc3_qcom *qcom = dev_get_drvdata(dev);

return dwc3_qcom_resume(qcom);
}
-#endif

static const struct dev_pm_ops dwc3_qcom_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(dwc3_qcom_pm_suspend, dwc3_qcom_pm_resume)
--
2.9.0
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