diff --git a/drivers/net/phy/mdio-mux-mmioreg.c b/drivers/net/phy/mdio-mux-mmioreg.c
index 9733bd239a86..f8e305d8da76 100644
--- a/drivers/net/phy/mdio-mux-mmioreg.c
+++ b/drivers/net/phy/mdio-mux-mmioreg.c
@@ -48,7 +48,7 @@ static int mdio_mux_mmioreg_switch_fn(int current_child, int desired_child,
 	struct mdio_mux_mmioreg_state *s = data;
 
 	if (current_child ^ desired_child) {
-		void *p = ioremap(s->phys, 1);
+		void __iomem *p = ioremap(s->phys, 1);
 		uint8_t x, y;
 
 		if (!p)