ravb: avoid unused function warnings

When CONFIG_PM_SLEEP is disabled, we get a couple of harmless warnings:

drivers/net/ethernet/renesas/ravb_main.c:2117:12: error: 'ravb_resume' defined but not used [-Werror=unused-function]
drivers/net/ethernet/renesas/ravb_main.c:2104:12: error: 'ravb_suspend' defined but not used [-Werror=unused-function]

The simplest solution here is to replace the #ifdef with __maybe_unused
annotations, which lets the compiler do the right thing by itself.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 0184165b2f42 ("ravb: add sleep PM suspend/resume support")
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index cad23ba06904..630536bc72f9 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2100,8 +2100,7 @@ static int ravb_remove(struct platform_device *pdev)
         return 0;
 }
 
-#ifdef CONFIG_PM
-static int ravb_suspend(struct device *dev)
+static int __maybe_unused ravb_suspend(struct device *dev)
 {
         struct net_device *ndev = dev_get_drvdata(dev);
         int ret = 0;
@@ -2114,7 +2113,7 @@ static int ravb_suspend(struct device *dev)
         return ret;
 }
 
-static int ravb_resume(struct device *dev)
+static int __maybe_unused ravb_resume(struct device *dev)
 {
         struct net_device *ndev = dev_get_drvdata(dev);
         struct ravb_private *priv = netdev_priv(ndev);
@@ -2149,7 +2148,7 @@ static int ravb_resume(struct device *dev)
         return ret;
 }
 
-static int ravb_runtime_nop(struct device *dev)
+static int __maybe_unused ravb_runtime_nop(struct device *dev)
 {
         /* Runtime PM callback shared between ->runtime_suspend()
          * and ->runtime_resume(). Simply returns success.
@@ -2166,17 +2165,12 @@ static const struct dev_pm_ops ravb_dev_pm_ops = {
         SET_RUNTIME_PM_OPS(ravb_runtime_nop, ravb_runtime_nop, NULL)
 };
 
-#define RAVB_PM_OPS (&ravb_dev_pm_ops)
-#else
-#define RAVB_PM_OPS NULL
-#endif
-
 static struct platform_driver ravb_driver = {
         .probe          = ravb_probe,
         .remove         = ravb_remove,
         .driver = {
                 .name   = "ravb",
-                .pm     = RAVB_PM_OPS,
+                .pm     = &ravb_dev_pm_ops,
                 .of_match_table = ravb_match_table,
         },
 };