wifi: rtl8xxxu: Make rtl8xxxu_load_firmware take const char*

And pass const char* to it.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/361ceac1-cc73-605b-4b63-736bfce80833@gmail.com

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h

@@ -1560,7 +1560,7 @@ int rtl8xxxu_init_phy_rf(struct rtl8xxxu_priv *priv,
 			 enum rtl8xxxu_rfpath path);
 int rtl8xxxu_init_phy_regs(struct rtl8xxxu_priv *priv,
 			   const struct rtl8xxxu_reg32val *array);
-int rtl8xxxu_load_firmware(struct rtl8xxxu_priv *priv, char *fw_name);
+int rtl8xxxu_load_firmware(struct rtl8xxxu_priv *priv, const char *fw_name);
 void rtl8xxxu_firmware_self_reset(struct rtl8xxxu_priv *priv);
 void rtl8xxxu_power_off(struct rtl8xxxu_priv *priv);
 void rtl8xxxu_identify_vendor_1bit(struct rtl8xxxu_priv *priv, u32 vendor);

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c

@@ -742,7 +742,7 @@ static int rtl8188fu_parse_efuse(struct rtl8xxxu_priv *priv)
 
 static int rtl8188fu_load_firmware(struct rtl8xxxu_priv *priv)
 {
-	char *fw_name;
+	const char *fw_name;
 	int ret;
 
 	fw_name = "rtlwifi/rtl8188fufw.bin";

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192c.c

@@ -386,7 +386,7 @@ static int rtl8192cu_identify_chip(struct rtl8xxxu_priv *priv)
 
 static int rtl8192cu_load_firmware(struct rtl8xxxu_priv *priv)
 {
-	char *fw_name;
+	const char *fw_name;
 	int ret;
 
 	if (!priv->vendor_umc)

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c

@@ -709,7 +709,7 @@ static int rtl8192eu_parse_efuse(struct rtl8xxxu_priv *priv)
 
 static int rtl8192eu_load_firmware(struct rtl8xxxu_priv *priv)
 {
-	char *fw_name;
+	const char *fw_name;
 	int ret;
 
 	fw_name = "rtlwifi/rtl8192eu_nic.bin";

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723a.c

@@ -231,7 +231,7 @@ static int rtl8723au_parse_efuse(struct rtl8xxxu_priv *priv)
 
 static int rtl8723au_load_firmware(struct rtl8xxxu_priv *priv)
 {
-	char *fw_name;
+	const char *fw_name;
 	int ret;
 
 	switch (priv->chip_cut) {

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c

@@ -502,7 +502,7 @@ static int rtl8723bu_parse_efuse(struct rtl8xxxu_priv *priv)
 
 static int rtl8723bu_load_firmware(struct rtl8xxxu_priv *priv)
 {
-	char *fw_name;
+	const char *fw_name;
 	int ret;
 
 	if (priv->enable_bluetooth)

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c

@@ -1980,7 +1980,7 @@ static int rtl8xxxu_download_firmware(struct rtl8xxxu_priv *priv)
 	return ret;
 }
 
-int rtl8xxxu_load_firmware(struct rtl8xxxu_priv *priv, char *fw_name)
+int rtl8xxxu_load_firmware(struct rtl8xxxu_priv *priv, const char *fw_name)
 {
 	struct device *dev = &priv->udev->dev;
 	const struct firmware *fw;