net: of/phy: fix build error when phylib is built as a module
CONFIG_OF_MDIO is tristate and will be m if PHYLIB is m. Use
IS_ENABLED macro to prevent build error:
ERROR: "of_mdio_find_bus" [drivers/net/phy/mdio-mux.ko] undefined!
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: David Daney <david.daney@cavium.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 83d5c9f..683ef1c 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -88,7 +88,7 @@
.dev_release = mdiobus_release,
};
-#ifdef CONFIG_OF_MDIO
+#if IS_ENABLED(CONFIG_OF_MDIO)
/* Helper function for of_mdio_find_bus */
static int of_mdio_bus_match(struct device *dev, void *mdio_bus_np)
{