sun/niu: add __maybe_unused attribute to PM functions

The upgraded .suspend() and .resume() throw
"defined but not used [-Wunused-function]" warning for certain
configurations.

Mark them with "__maybe_unused" attribute.

Compile-tested only.

Fixes: b0db0cc2f695 ("sun/niu: use generic power management")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 68541c8..b4e20d1 100644 (file)
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -9873,7 +9873,7 @@ static void niu_pci_remove_one(struct pci_dev *pdev)
        }
 }
 
-static int niu_suspend(struct device *dev_d)
+static int __maybe_unused niu_suspend(struct device *dev_d)
 {
        struct net_device *dev = dev_get_drvdata(dev_d);
        struct niu *np = netdev_priv(dev);
@@ -9900,7 +9900,7 @@ static int niu_suspend(struct device *dev_d)
        return 0;
 }
 
-static int niu_resume(struct device *dev_d)
+static int __maybe_unused niu_resume(struct device *dev_d)
 {
        struct net_device *dev = dev_get_drvdata(dev_d);
        struct niu *np = netdev_priv(dev);