ltq-atm: fix build warnings on lantiq/xway

Mark some functions as static to fix various missing-prototypes
build warnings on 6.12 kernel.

Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/18744
Signed-off-by: Robert Marko <[email protected]>
(cherry picked from commit ac18f03bd97c85ece73503115f2b9ac7de3b63e3)
Signed-off-by: Nora Matthias Schiffer <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20440
Signed-off-by: Hauke Mehrtens <[email protected]>

package/kernel/lantiq/ltq-atm/src/ifxmips_atm_ar9.c

@@ -185,7 +185,7 @@ static inline int pp32_download_code(u32 *code_src, unsigned int code_dword_len,
     return 0;
 }
 
-void ar9_fw_ver(unsigned int *major, unsigned int *minor)
+static void ar9_fw_ver(unsigned int *major, unsigned int *minor)
 {
     ASSERT(major != NULL, "pointer is NULL");
     ASSERT(minor != NULL, "pointer is NULL");
@@ -194,7 +194,7 @@ void ar9_fw_ver(unsigned int *major, unsigned int *minor)
     *minor = FW_VER_ID->minor;
 }
 
-int ar9_init(struct platform_device *pdev)
+static int ar9_init(struct platform_device *pdev)
 {
 	init_pmu();
 	reset_ppe(pdev);
@@ -205,7 +205,7 @@ int ar9_init(struct platform_device *pdev)
 	return 0;
 }
 
-void ar9_shutdown(void)
+static void ar9_shutdown(void)
 {
 	ltq_pmu_disable(IFX_PMU_MODULE_PPE_SLL01 |
 		IFX_PMU_MODULE_PPE_TC |
@@ -215,7 +215,7 @@ void ar9_shutdown(void)
 		IFX_PMU_MODULE_DSL_DFE);
 }
 
-int ar9_start(int pp32)
+static int ar9_start(int pp32)
 {
 	int ret;
 
@@ -231,7 +231,7 @@ int ar9_start(int pp32)
 	return 0;
 }
 
-void ar9_stop(int pp32)
+static void ar9_stop(int pp32)
 {
 	IFX_REG_W32(DBG_CTRL_STOP, PP32_DBG_CTRL(0));
 }

package/kernel/lantiq/ltq-atm/src/ifxmips_atm_danube.c

@@ -198,7 +198,7 @@ static void danube_shutdown(void)
 {
 }
 
-int danube_start(int pp32)
+static int danube_start(int pp32)
 {
 	int ret;
 
@@ -218,7 +218,7 @@ int danube_start(int pp32)
 	return 0;
 }
 
-void danube_stop(int pp32)
+static void danube_stop(int pp32)
 {
 	IFX_REG_W32(DBG_CTRL_STOP_SET(1), PP32_DBG_CTRL);
 }