diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index e02fab09949674f9bcb18a0f542527bc4ddd6bb6..508d46f6db7b07acb66db52e5ae9af5dd8c805f9 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -894,7 +894,7 @@ int rtl8xxxu_write_rfreg(struct rtl8xxxu_priv *priv,
 	return retval;
 }
 
-int
+static int
 rtl8xxxu_gen1_h2c_cmd(struct rtl8xxxu_priv *priv, struct h2c_cmd *h2c, int len)
 {
 	struct device *dev = &priv->udev->dev;