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phy: dm816x: use __maybe_unused to hide pm functions

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The dm816x USB PHY driver uses UNIVERSAL_DEV_PM_OPS to access
its suspend/resume functions, which causes a warning about
unused symbols when CONFIG_PM is disabled:

drivers/phy/phy-dm816x-usb.c:121:12: error: 'dm816x_usb_phy_runtime_suspend' defined but not used [-Werror=unused-function]
drivers/phy/phy-dm816x-usb.c:139:12: error: 'dm816x_usb_phy_runtime_resume' defined but not used [-Werror=unused-function]

This adds __maybe_unused annotations to let the compiler know
it can silently drop the function definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2016-03-02 16:24:07 +01:00 committed by Greg Kroah-Hartman
parent 9fc7c85dc4
commit 9cea322ec9
1 changed files with 2 additions and 2 deletions
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4
drivers/phy/phy-dm816x-usb.c
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@ -118,7 +118,7 @@ static const struct phy_ops ops = {
.owner = THIS_MODULE,
};
static int dm816x_usb_phy_runtime_suspend(struct device *dev)
static int __maybe_unused dm816x_usb_phy_runtime_suspend(struct device *dev)
{
struct dm816x_usb_phy *phy = dev_get_drvdata(dev);
unsigned int mask, val;
@ -136,7 +136,7 @@ static int dm816x_usb_phy_runtime_suspend(struct device *dev)
return 0;
}
static int dm816x_usb_phy_runtime_resume(struct device *dev)
static int __maybe_unused dm816x_usb_phy_runtime_resume(struct device *dev)
{
struct dm816x_usb_phy *phy = dev_get_drvdata(dev);
unsigned int mask, val;