[PATCH 1/4] drm/amd/powerplay: mark symbols static where possible

Baoyou Xie baoyou.xie at linaro.org
Sun Sep 25 08:19:03 UTC 2016


We get a few warnings when building kernel with W=1:
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/cz_hwmgr.c:69:10: warning: no previous prototype for 'cz_get_eclk_level' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/tonga_hwmgr.c:117:27: warning: no previous prototype for 'cast_phw_tonga_power_state' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/tonga_thermal.c:363:5: warning: no previous prototype for 'tf_tonga_thermal_setup_fan_table' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/iceland_hwmgr.c:139:5: warning: no previous prototype for 'iceland_get_memory_type' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/iceland_thermal.c:363:5: warning: no previous prototype for 'tf_iceland_thermal_setup_fan_table' [-Wmissing-prototypes]
....

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
So this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie at linaro.org>
---
 drivers/gpu/drm/amd/powerplay/amd_powerplay.c      |   6 +-
 drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c     |  12 +-
 .../gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c    |  86 +++++++------
 .../gpu/drm/amd/powerplay/hwmgr/iceland_thermal.c  |  10 +-
 .../amd/powerplay/hwmgr/process_pptables_v1_0.c    |   6 +-
 .../gpu/drm/amd/powerplay/hwmgr/processpptables.c  |   4 +-
 .../amd/powerplay/hwmgr/tonga_clockpowergating.c   |   4 +-
 drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c  | 140 +++++++++++----------
 .../gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c    |   9 +-
 drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c |  22 ++--
 .../gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c  |   2 +-
 .../drm/amd/powerplay/smumgr/polaris10_smumgr.c    |  22 ++--
 .../gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c    |   2 +-
 13 files changed, 179 insertions(+), 146 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index b1d1940..83a355c 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -507,7 +507,9 @@ static enum PP_StateUILabel power_state_convert(enum amd_pm_state_type  state)
 	}
 }
 
-int pp_dpm_dispatch_tasks(void *handle, enum amd_pp_event event_id, void *input, void *output)
+static int
+pp_dpm_dispatch_tasks(void *handle, enum amd_pp_event event_id,
+		void *input, void *output)
 {
 	int ret = 0;
 	struct pp_instance *pp_handle;
@@ -546,7 +548,7 @@ int pp_dpm_dispatch_tasks(void *handle, enum amd_pp_event event_id, void *input,
 	return ret;
 }
 
-enum amd_pm_state_type pp_dpm_get_current_power_state(void *handle)
+static enum amd_pm_state_type pp_dpm_get_current_power_state(void *handle)
 {
 	struct pp_hwmgr *hwmgr;
 	struct pp_power_state *state;
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
index 5ecef17..41dfc34 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
@@ -66,7 +66,7 @@ static const struct cz_power_state *cast_const_PhwCzPowerState(
 	return (struct cz_power_state *)hw_ps;
 }
 
-uint32_t cz_get_eclk_level(struct pp_hwmgr *hwmgr,
+static uint32_t cz_get_eclk_level(struct pp_hwmgr *hwmgr,
 					uint32_t clock, uint32_t msg)
 {
 	int i = 0;
@@ -1017,7 +1017,7 @@ static int cz_tf_program_bootup_state(struct pp_hwmgr *hwmgr, void *input,
 	return 0;
 }
 
-int cz_tf_reset_acp_boot_level(struct pp_hwmgr *hwmgr, void *input,
+static int cz_tf_reset_acp_boot_level(struct pp_hwmgr *hwmgr, void *input,
 				void *output, void *storage, int result)
 {
 	struct cz_hwmgr *cz_hwmgr = (struct cz_hwmgr *)(hwmgr->backend);
@@ -1225,7 +1225,7 @@ static int cz_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int cz_phm_force_dpm_highest(struct pp_hwmgr *hwmgr)
+static int cz_phm_force_dpm_highest(struct pp_hwmgr *hwmgr)
 {
 	struct cz_hwmgr *cz_hwmgr = (struct cz_hwmgr *)(hwmgr->backend);
 
@@ -1239,7 +1239,7 @@ int cz_phm_force_dpm_highest(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int cz_phm_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
+static int cz_phm_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
 {
 	struct cz_hwmgr *cz_hwmgr = (struct cz_hwmgr *)(hwmgr->backend);
 	struct phm_clock_voltage_dependency_table *table =
@@ -1277,7 +1277,7 @@ int cz_phm_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int cz_phm_force_dpm_lowest(struct pp_hwmgr *hwmgr)
+static int cz_phm_force_dpm_lowest(struct pp_hwmgr *hwmgr)
 {
 	struct cz_hwmgr *cz_hwmgr = (struct cz_hwmgr *)(hwmgr->backend);
 
@@ -1533,7 +1533,7 @@ static int cz_dpm_get_pp_table_entry(struct pp_hwmgr *hwmgr,
 	return result;
 }
 
-int cz_get_power_state_size(struct pp_hwmgr *hwmgr)
+static int cz_get_power_state_size(struct pp_hwmgr *hwmgr)
 {
 	return sizeof(struct cz_power_state);
 }
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c
index 5abe433..364c846 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c
@@ -136,7 +136,7 @@ static int iceland_read_clock_registers(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_get_memory_type(struct pp_hwmgr *hwmgr)
+static int iceland_get_memory_type(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 	uint32_t temp;
@@ -162,7 +162,7 @@ int iceland_update_uvd_dpm(struct pp_hwmgr *hwmgr, bool bgate)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_enable_acpi_power_management(struct pp_hwmgr *hwmgr)
+static int iceland_enable_acpi_power_management(struct pp_hwmgr *hwmgr)
 {
 	PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT, STATIC_PM_EN, 1);
 
@@ -175,7 +175,7 @@ int iceland_enable_acpi_power_management(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_get_mc_microcode_version(struct pp_hwmgr *hwmgr)
+static int iceland_get_mc_microcode_version(struct pp_hwmgr *hwmgr)
 {
 	cgs_write_register(hwmgr->device, mmMC_SEQ_IO_DEBUG_INDEX, 0x9F);
 
@@ -262,7 +262,7 @@ static void iceland_trim_voltage_table_to_fit_state_table(
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_enable_voltage_control(struct pp_hwmgr *hwmgr)
+static int iceland_enable_voltage_control(struct pp_hwmgr *hwmgr)
 {
 	/* enable voltage control */
 	PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT, VOLT_PWRMGT_EN, 1);
@@ -298,7 +298,7 @@ static int iceland_get_svi2_voltage_table(struct pp_hwmgr *hwmgr,
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_construct_voltage_tables(struct pp_hwmgr *hwmgr)
+static int iceland_construct_voltage_tables(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 	int result;
@@ -380,12 +380,12 @@ int iceland_construct_voltage_tables(struct pp_hwmgr *hwmgr)
 
 /*---------------------------MC----------------------------*/
 
-uint8_t iceland_get_memory_module_index(struct pp_hwmgr *hwmgr)
+static uint8_t iceland_get_memory_module_index(struct pp_hwmgr *hwmgr)
 {
 	return (uint8_t) (0xFF & (cgs_read_register(hwmgr->device, mmBIOS_SCRATCH_4) >> 16));
 }
 
-bool iceland_check_s0_mc_reg_index(uint16_t inReg, uint16_t *outReg)
+static bool iceland_check_s0_mc_reg_index(uint16_t inReg, uint16_t *outReg)
 {
 	bool result = true;
 
@@ -478,7 +478,7 @@ bool iceland_check_s0_mc_reg_index(uint16_t inReg, uint16_t *outReg)
 	return result;
 }
 
-int iceland_set_s0_mc_reg_index(phw_iceland_mc_reg_table *table)
+static int iceland_set_s0_mc_reg_index(phw_iceland_mc_reg_table *table)
 {
 	uint32_t i;
 	uint16_t address;
@@ -491,7 +491,9 @@ int iceland_set_s0_mc_reg_index(phw_iceland_mc_reg_table *table)
 	return 0;
 }
 
-int iceland_copy_vbios_smc_reg_table(const pp_atomctrl_mc_reg_table *table, phw_iceland_mc_reg_table *ni_table)
+static int
+iceland_copy_vbios_smc_reg_table(const pp_atomctrl_mc_reg_table *table,
+				 phw_iceland_mc_reg_table *ni_table)
 {
 	uint8_t i, j;
 
@@ -690,7 +692,8 @@ static int iceland_initialize_mc_reg_table(struct pp_hwmgr *hwmgr)
  * @param   hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_program_static_screen_threshold_parameters(struct pp_hwmgr *hwmgr)
+static int
+iceland_program_static_screen_threshold_parameters(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -712,7 +715,7 @@ int iceland_program_static_screen_threshold_parameters(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_enable_display_gap(struct pp_hwmgr *hwmgr)
+static int iceland_enable_display_gap(struct pp_hwmgr *hwmgr)
 {
 	uint32_t display_gap = cgs_read_ind_register(hwmgr->device,
 							CGS_IND_REG__SMC, ixCG_DISPLAY_GAP_CNTL);
@@ -735,7 +738,7 @@ int iceland_enable_display_gap(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int iceland_program_voting_clients(struct pp_hwmgr *hwmgr)
+static int iceland_program_voting_clients(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -873,7 +876,7 @@ static int iceland_process_firmware_header(struct pp_hwmgr *hwmgr)
 * Copy one arb setting to another and then switch the active set.
 * arbFreqSrc and arbFreqDest is one of the MC_CG_ARB_FREQ_Fx constants.
 */
-int iceland_copy_and_switch_arb_sets(struct pp_hwmgr *hwmgr,
+static int iceland_copy_and_switch_arb_sets(struct pp_hwmgr *hwmgr,
 		uint32_t arbFreqSrc, uint32_t arbFreqDest)
 {
 	uint32_t mc_arb_dram_timing;
@@ -930,7 +933,7 @@ int iceland_copy_and_switch_arb_sets(struct pp_hwmgr *hwmgr,
  * @return   always 0
  * This function is to be called from the SetPowerState table.
  */
-int iceland_initial_switch_from_arb_f0_to_f1(struct pp_hwmgr *hwmgr)
+static int iceland_initial_switch_from_arb_f0_to_f1(struct pp_hwmgr *hwmgr)
 {
 	return iceland_copy_and_switch_arb_sets(hwmgr, MC_CG_ARB_FREQ_F0, MC_CG_ARB_FREQ_F1);
 }
@@ -1406,7 +1409,7 @@ int iceland_populate_vddc_vid(struct pp_hwmgr *hwmgr)
  * @return   always 0
  */
 
-int iceland_populate_smc_voltage_tables(struct pp_hwmgr *hwmgr,
+static int iceland_populate_smc_voltage_tables(struct pp_hwmgr *hwmgr,
 	SMU71_Discrete_DpmTable *table)
 {
 	int result;
@@ -1448,7 +1451,7 @@ static uint32_t iceland_get_dpm_level_enable_mask_value(
 	return mask_value;
 }
 
-int iceland_populate_memory_timing_parameters(
+static int iceland_populate_memory_timing_parameters(
 		struct pp_hwmgr *hwmgr,
 		uint32_t engine_clock,
 		uint32_t memory_clock,
@@ -1484,7 +1487,7 @@ int iceland_populate_memory_timing_parameters(
  * @return   always 0
  * This function is to be called from the SetPowerState table.
  */
-int iceland_program_memory_timing_parameters(struct pp_hwmgr *hwmgr)
+static int iceland_program_memory_timing_parameters(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 	int result = 0;
@@ -2006,7 +2009,8 @@ static int iceland_populate_single_memory_level(
  * @param    mclk        the MCLK value to be used in the decision if MVDD should be high or low.
  * @param    voltage     the SMC VOLTAGE structure to be populated
  */
-int iceland_populate_mvdd_value(struct pp_hwmgr *hwmgr, uint32_t mclk, SMU71_Discrete_VoltageLevel *voltage)
+static int iceland_populate_mvdd_value(struct pp_hwmgr *hwmgr, uint32_t mclk,
+		SMU71_Discrete_VoltageLevel *voltage)
 {
 	const iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 	uint32_t i = 0;
@@ -2185,7 +2189,7 @@ static int iceland_find_boot_level(struct iceland_single_dpm_table *table, uint3
  * @param    engine_clock the engine clock to use to populate the structure
  * @param    sclk        the SMC SCLK structure to be populated
  */
-int iceland_calculate_sclk_params(struct pp_hwmgr *hwmgr,
+static int iceland_calculate_sclk_params(struct pp_hwmgr *hwmgr,
 		uint32_t engine_clock, SMU71_Discrete_GraphicsLevel *sclk)
 {
 	const iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
@@ -2783,7 +2787,8 @@ static int iceland_init_smc_table(struct pp_hwmgr *hwmgr)
 	return result;
 }
 
-int iceland_populate_mc_reg_address(struct pp_hwmgr *hwmgr, SMU71_Discrete_MCRegisters *mc_reg_table)
+static int iceland_populate_mc_reg_address(struct pp_hwmgr *hwmgr,
+		SMU71_Discrete_MCRegisters *mc_reg_table)
 {
 	const struct iceland_hwmgr *data = (struct iceland_hwmgr *)(hwmgr->backend);
 
@@ -2807,7 +2812,7 @@ int iceland_populate_mc_reg_address(struct pp_hwmgr *hwmgr, SMU71_Discrete_MCReg
 }
 
 /* convert register values from driver to SMC format */
-void iceland_convert_mc_registers(
+static void iceland_convert_mc_registers(
 	const phw_iceland_mc_reg_entry * pEntry,
 	SMU71_Discrete_MCRegisterSet *pData,
 	uint32_t numEntries, uint32_t validflag)
@@ -2823,7 +2828,7 @@ void iceland_convert_mc_registers(
 }
 
 /* find the entry in the memory range table, then populate the value to SMC's iceland_mc_reg_table */
-int iceland_convert_mc_reg_table_entry_to_smc(
+static int iceland_convert_mc_reg_table_entry_to_smc(
 		struct pp_hwmgr *hwmgr,
 		const uint32_t memory_clock,
 		SMU71_Discrete_MCRegisterSet *mc_reg_table_data
@@ -2848,7 +2853,7 @@ int iceland_convert_mc_reg_table_entry_to_smc(
 	return 0;
 }
 
-int iceland_convert_mc_reg_table_to_smc(struct pp_hwmgr *hwmgr,
+static int iceland_convert_mc_reg_table_to_smc(struct pp_hwmgr *hwmgr,
 		SMU71_Discrete_MCRegisters *mc_reg_table)
 {
 	int result = 0;
@@ -2870,7 +2875,7 @@ int iceland_convert_mc_reg_table_to_smc(struct pp_hwmgr *hwmgr,
 	return result;
 }
 
-int iceland_populate_initial_mc_reg_table(struct pp_hwmgr *hwmgr)
+static int iceland_populate_initial_mc_reg_table(struct pp_hwmgr *hwmgr)
 {
 	int result;
 	struct iceland_hwmgr *data = (struct iceland_hwmgr *)(hwmgr->backend);
@@ -2888,21 +2893,22 @@ int iceland_populate_initial_mc_reg_table(struct pp_hwmgr *hwmgr)
 			(uint8_t *)&data->mc_reg_table, sizeof(SMU71_Discrete_MCRegisters), data->sram_end);
 }
 
-int iceland_notify_smc_display_change(struct pp_hwmgr *hwmgr, bool has_display)
+static int
+iceland_notify_smc_display_change(struct pp_hwmgr *hwmgr, bool has_display)
 {
 	PPSMC_Msg msg = has_display? (PPSMC_Msg)PPSMC_HasDisplay : (PPSMC_Msg)PPSMC_NoDisplay;
 
 	return (smum_send_msg_to_smc(hwmgr->smumgr, msg) == 0) ?  0 : -1;
 }
 
-int iceland_enable_sclk_control(struct pp_hwmgr *hwmgr)
+static int iceland_enable_sclk_control(struct pp_hwmgr *hwmgr)
 {
 	PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, SCLK_PWRMGT_CNTL, SCLK_PWRMGT_OFF, 0);
 
 	return 0;
 }
 
-int iceland_enable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
+static int iceland_enable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -2946,7 +2952,7 @@ int iceland_enable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int iceland_start_dpm(struct pp_hwmgr *hwmgr)
+static int iceland_start_dpm(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -3897,7 +3903,7 @@ static int iceland_get_num_of_entries(struct pp_hwmgr *hwmgr)
 
 static const unsigned long PhwIceland_Magic = (unsigned long)(PHM_VIslands_Magic);
 
-struct iceland_power_state *cast_phw_iceland_power_state(
+static struct iceland_power_state *cast_phw_iceland_power_state(
 				  struct pp_hw_power_state *hw_ps)
 {
 	if (hw_ps == NULL)
@@ -4069,7 +4075,7 @@ static bool iceland_is_dpm_running(struct pp_hwmgr *hwmgr)
  * @param    n     :  DPM level
  * @return   The response that came from the SMC.
  */
-int iceland_dpm_force_state(struct pp_hwmgr *hwmgr, uint32_t n)
+static int iceland_dpm_force_state(struct pp_hwmgr *hwmgr, uint32_t n)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -4092,7 +4098,7 @@ int iceland_dpm_force_state(struct pp_hwmgr *hwmgr, uint32_t n)
  * @param    n     :  DPM level
  * @return   The response that came from the SMC.
  */
-int iceland_dpm_force_state_mclk(struct pp_hwmgr *hwmgr, uint32_t n)
+static int iceland_dpm_force_state_mclk(struct pp_hwmgr *hwmgr, uint32_t n)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -4115,7 +4121,7 @@ int iceland_dpm_force_state_mclk(struct pp_hwmgr *hwmgr, uint32_t n)
  * @param    n     :  DPM level
  * @return   The response that came from the SMC.
  */
-int iceland_dpm_force_state_pcie(struct pp_hwmgr *hwmgr, uint32_t n)
+static int iceland_dpm_force_state_pcie(struct pp_hwmgr *hwmgr, uint32_t n)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -4221,7 +4227,7 @@ static int iceland_force_dpm_lowest(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int iceland_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
+static int iceland_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
 {
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
 
@@ -4285,7 +4291,7 @@ static int iceland_force_dpm_level(struct pp_hwmgr *hwmgr,
 	return ret;
 }
 
-const struct iceland_power_state *cast_const_phw_iceland_power_state(
+static const struct iceland_power_state *cast_const_phw_iceland_power_state(
 				 const struct pp_hw_power_state *hw_ps)
 {
 	if (hw_ps == NULL)
@@ -4761,7 +4767,7 @@ static int iceland_notify_link_speed_change_after_state_change(struct pp_hwmgr *
 	return 0;
 }
 
-int iceland_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
+static int iceland_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
 {
 	PPSMC_Result result;
 	iceland_hwmgr *data = (iceland_hwmgr *)(hwmgr->backend);
@@ -5134,7 +5140,8 @@ iceland_print_current_perforce_level(struct pp_hwmgr *hwmgr, struct seq_file *m)
 	seq_printf(m, "vce    %sabled\n", data->vce_power_gated ? "dis" : "en");
 }
 
-int iceland_notify_smc_display_config_after_ps_adjustment(struct pp_hwmgr *hwmgr)
+static int
+iceland_notify_smc_display_config_after_ps_adjustment(struct pp_hwmgr *hwmgr)
 {
 	uint32_t num_active_displays = 0;
 	struct cgs_display_info info = {0};
@@ -5158,7 +5165,7 @@ int iceland_notify_smc_display_config_after_ps_adjustment(struct pp_hwmgr *hwmgr
 * @param    hwmgr  the address of the powerplay hardware manager.
 * @return   always OK
 */
-int iceland_program_display_gap(struct pp_hwmgr *hwmgr)
+static int iceland_program_display_gap(struct pp_hwmgr *hwmgr)
 {
 	uint32_t num_active_displays = 0;
 	uint32_t display_gap = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_DISPLAY_GAP_CNTL);
@@ -5201,7 +5208,7 @@ int iceland_program_display_gap(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int iceland_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
+static int iceland_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
 {
 	iceland_program_display_gap(hwmgr);
 
@@ -5339,7 +5346,8 @@ static inline bool iceland_are_power_levels_equal(const struct iceland_performan
 		  (pl1->pcie_lane == pl2->pcie_lane));
 }
 
-int iceland_check_states_equal(struct pp_hwmgr *hwmgr, const struct pp_hw_power_state *pstate1,
+static int iceland_check_states_equal(struct pp_hwmgr *hwmgr,
+		const struct pp_hw_power_state *pstate1,
 		const struct pp_hw_power_state *pstate2, bool *equal)
 {
 	const struct iceland_power_state *psa = cast_const_phw_iceland_power_state(pstate1);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_thermal.c
index 527f370..9b90d1f 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_thermal.c
@@ -150,7 +150,7 @@ static int iceland_fan_ctrl_set_default_mode(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int iceland_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
+static int iceland_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
 {
 	return (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_StartFanControl) == 0) ?  0 : -EINVAL;
 }
@@ -360,7 +360,9 @@ int iceland_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
 * @param    Result the last failure code
 * @return   result from set temperature range routine
 */
-int tf_iceland_thermal_setup_fan_table(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
+static int
+tf_iceland_thermal_setup_fan_table(struct pp_hwmgr *hwmgr, void *input,
+		void *output, void *storage, int result)
 {
 	struct iceland_hwmgr *data = (struct iceland_hwmgr *)(hwmgr->backend);
 	SMU71_Discrete_FanTable fan_table = { FDO_MODE_HARDWARE };
@@ -451,7 +453,9 @@ int tf_iceland_thermal_setup_fan_table(struct pp_hwmgr *hwmgr, void *input, void
 * @param    Result the last failure code
 * @return   result from set temperature range routine
 */
-int tf_iceland_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
+static int
+tf_iceland_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr, void *input,
+		void *output, void *storage, int result)
 {
 /* If the fantable setup has failed we could have disabled PHM_PlatformCaps_MicrocodeFanControl even after this function was included in the table.
  * Make sure that we still think controlling the fan is OK.
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c b/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
index 7de701d..155cd0d 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
@@ -131,7 +131,7 @@ static int set_platform_caps(struct pp_hwmgr *hwmgr, uint32_t powerplay_caps)
 /**
  * Private Function to get the PowerPlay Table Address.
  */
-const void *get_powerplay_table(struct pp_hwmgr *hwmgr)
+static const void *get_powerplay_table(struct pp_hwmgr *hwmgr)
 {
 	int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
 
@@ -1049,7 +1049,7 @@ static int check_powerplay_tables(
 	return 0;
 }
 
-int pp_tables_v1_0_initialize(struct pp_hwmgr *hwmgr)
+static int pp_tables_v1_0_initialize(struct pp_hwmgr *hwmgr)
 {
 	int result = 0;
 	const ATOM_Tonga_POWERPLAYTABLE *powerplay_table;
@@ -1100,7 +1100,7 @@ int pp_tables_v1_0_initialize(struct pp_hwmgr *hwmgr)
 	return result;
 }
 
-int pp_tables_v1_0_uninitialize(struct pp_hwmgr *hwmgr)
+static int pp_tables_v1_0_uninitialize(struct pp_hwmgr *hwmgr)
 {
 	struct phm_ppt_v1_information *pp_table_information =
 		(struct phm_ppt_v1_information *)(hwmgr->pptable);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
index ccf7ebe..bd1f190 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/processpptables.c
@@ -1507,7 +1507,7 @@ static int init_phase_shedding_table(struct pp_hwmgr *hwmgr,
 	return 0;
 }
 
-int get_number_of_vce_state_table_entries(
+static int get_number_of_vce_state_table_entries(
 						  struct pp_hwmgr *hwmgr)
 {
 	const ATOM_PPLIB_POWERPLAYTABLE *table =
@@ -1521,7 +1521,7 @@ int get_number_of_vce_state_table_entries(
 	return 0;
 }
 
-int get_vce_state_table_entry(struct pp_hwmgr *hwmgr,
+static int get_vce_state_table_entry(struct pp_hwmgr *hwmgr,
 							unsigned long i,
 							struct pp_vce_state *vce_state,
 							void **clock_info,
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.c
index e58d038..c1a717c 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.c
@@ -34,7 +34,7 @@ int tonga_phm_powerdown_uvd(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_phm_powerup_uvd(struct pp_hwmgr *hwmgr)
+static int tonga_phm_powerup_uvd(struct pp_hwmgr *hwmgr)
 {
 	if (phm_cf_want_uvd_power_gating(hwmgr)) {
 		if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
@@ -58,7 +58,7 @@ int tonga_phm_powerdown_vce(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_phm_powerup_vce(struct pp_hwmgr *hwmgr)
+static int tonga_phm_powerup_vce(struct pp_hwmgr *hwmgr)
 {
 	if (phm_cf_want_vce_power_gating(hwmgr))
 		return smum_send_msg_to_smc(hwmgr->smumgr,
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
index 582d04a..667bb0e 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
@@ -114,7 +114,7 @@ typedef enum DPM_EVENT_SRC DPM_EVENT_SRC;
 
 static const unsigned long PhwTonga_Magic = (unsigned long)(PHM_VIslands_Magic);
 
-struct tonga_power_state *cast_phw_tonga_power_state(
+static struct tonga_power_state *cast_phw_tonga_power_state(
 				  struct pp_hw_power_state *hw_ps)
 {
 	if (hw_ps == NULL)
@@ -127,7 +127,7 @@ struct tonga_power_state *cast_phw_tonga_power_state(
 	return (struct tonga_power_state *)hw_ps;
 }
 
-const struct tonga_power_state *cast_const_phw_tonga_power_state(
+static const struct tonga_power_state *cast_const_phw_tonga_power_state(
 				 const struct pp_hw_power_state *hw_ps)
 {
 	if (hw_ps == NULL)
@@ -140,7 +140,7 @@ const struct tonga_power_state *cast_const_phw_tonga_power_state(
 	return (const struct tonga_power_state *)hw_ps;
 }
 
-int tonga_add_voltage(struct pp_hwmgr *hwmgr,
+static int tonga_add_voltage(struct pp_hwmgr *hwmgr,
 	phm_ppt_v1_voltage_lookup_table *look_up_table,
 	phm_ppt_v1_voltage_lookup_record *record)
 {
@@ -181,7 +181,7 @@ int tonga_notify_smc_display_change(struct pp_hwmgr *hwmgr, bool has_display)
 	return (smum_send_msg_to_smc(hwmgr->smumgr, msg) == 0) ?  0 : -1;
 }
 
-uint8_t tonga_get_voltage_id(pp_atomctrl_voltage_table *voltage_table,
+static uint8_t tonga_get_voltage_id(pp_atomctrl_voltage_table *voltage_table,
 		uint32_t voltage)
 {
 	uint8_t count = (uint8_t) (voltage_table->count);
@@ -211,7 +211,8 @@ uint8_t tonga_get_voltage_id(pp_atomctrl_voltage_table *voltage_table,
  * @param voltage - voltage to look for
  * @return 0 on success
  */
-uint8_t tonga_get_voltage_index(phm_ppt_v1_voltage_lookup_table *look_up_table,
+static uint8_t
+tonga_get_voltage_index(phm_ppt_v1_voltage_lookup_table *look_up_table,
 		uint16_t voltage)
 {
 	uint8_t count = (uint8_t) (look_up_table->count);
@@ -268,7 +269,7 @@ static uint32_t tonga_get_dpm_level_enable_mask_value(
  *
  * @param    hwmgr  the address of the powerplay hardware manager.
  */
-void tonga_initialize_dpm_defaults(struct pp_hwmgr *hwmgr)
+static void tonga_initialize_dpm_defaults(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	phw_tonga_ulv_parm *ulv = &(data->ulv);
@@ -405,7 +406,7 @@ static int tonga_get_sclk_for_voltage_evv(struct pp_hwmgr *hwmgr,
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   2 if vddgfx returned is greater than 2V or if BIOS
  */
-int tonga_get_evv_voltage(struct pp_hwmgr *hwmgr)
+static int tonga_get_evv_voltage(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
@@ -477,7 +478,7 @@ int tonga_get_evv_voltage(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_enable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
+static int tonga_enable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -521,7 +522,7 @@ int tonga_enable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_start_dpm(struct pp_hwmgr *hwmgr)
+static int tonga_start_dpm(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -565,7 +566,7 @@ int tonga_start_dpm(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_disable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
+static int tonga_disable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -604,7 +605,7 @@ int tonga_disable_sclk_mclk_dpm(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_stop_dpm(struct pp_hwmgr *hwmgr)
+static int tonga_stop_dpm(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -646,7 +647,7 @@ int tonga_stop_dpm(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_enable_sclk_control(struct pp_hwmgr *hwmgr)
+static int tonga_enable_sclk_control(struct pp_hwmgr *hwmgr)
 {
 	PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, SCLK_PWRMGT_CNTL, SCLK_PWRMGT_OFF, 0);
 
@@ -684,7 +685,7 @@ PPSMC_Result tonga_send_msg_to_smc_return_parameter(
  * @param    n     :  DPM level
  * @return   The response that came from the SMC.
  */
-int tonga_dpm_force_state(struct pp_hwmgr *hwmgr, uint32_t n)
+static int tonga_dpm_force_state(struct pp_hwmgr *hwmgr, uint32_t n)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	uint32_t level_mask = 1 << n;
@@ -709,7 +710,7 @@ int tonga_dpm_force_state(struct pp_hwmgr *hwmgr, uint32_t n)
  * @param    n     :  DPM level
  * @return   The response that came from the SMC.
  */
-int tonga_dpm_force_state_mclk(struct pp_hwmgr *hwmgr, uint32_t n)
+static int tonga_dpm_force_state_mclk(struct pp_hwmgr *hwmgr, uint32_t n)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	uint32_t level_mask = 1 << n;
@@ -734,7 +735,7 @@ int tonga_dpm_force_state_mclk(struct pp_hwmgr *hwmgr, uint32_t n)
  * @param    n     :  DPM level
  * @return   The response that came from the SMC.
  */
-int tonga_dpm_force_state_pcie(struct pp_hwmgr *hwmgr, uint32_t n)
+static int tonga_dpm_force_state_pcie(struct pp_hwmgr *hwmgr, uint32_t n)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -757,7 +758,7 @@ int tonga_dpm_force_state_pcie(struct pp_hwmgr *hwmgr, uint32_t n)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_set_boot_state(struct pp_hwmgr *hwmgr)
+static int tonga_set_boot_state(struct pp_hwmgr *hwmgr)
 {
 	/*
 	* SMC only stores one state that SW will ask to switch too,
@@ -857,7 +858,7 @@ static int tonga_process_firmware_header(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_read_clock_registers(struct pp_hwmgr *hwmgr)
+static int tonga_read_clock_registers(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -901,7 +902,7 @@ int tonga_read_clock_registers(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_get_memory_type(struct pp_hwmgr *hwmgr)
+static int tonga_get_memory_type(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	uint32_t temp;
@@ -921,7 +922,7 @@ int tonga_get_memory_type(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_enable_acpi_power_management(struct pp_hwmgr *hwmgr)
+static int tonga_enable_acpi_power_management(struct pp_hwmgr *hwmgr)
 {
 	PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT, STATIC_PM_EN, 1);
 
@@ -934,7 +935,7 @@ int tonga_enable_acpi_power_management(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_init_power_gate_state(struct pp_hwmgr *hwmgr)
+static int tonga_init_power_gate_state(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -953,7 +954,7 @@ int tonga_init_power_gate_state(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_check_for_dpm_running(struct pp_hwmgr *hwmgr)
+static int tonga_check_for_dpm_running(struct pp_hwmgr *hwmgr)
 {
 	/*
 	 * We return the status of Voltage Control instead of checking SCLK/MCLK DPM
@@ -969,7 +970,7 @@ int tonga_check_for_dpm_running(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_check_for_dpm_stopped(struct pp_hwmgr *hwmgr)
+static int tonga_check_for_dpm_stopped(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -1123,7 +1124,7 @@ static void tonga_trim_voltage_table_to_fit_state_table(
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_construct_voltage_tables(struct pp_hwmgr *hwmgr)
+static int tonga_construct_voltage_tables(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
@@ -1385,7 +1386,7 @@ static int tonga_populate_cac_tables(struct pp_hwmgr *hwmgr,
  * @return   always 0
  */
 
-int tonga_populate_smc_voltage_tables(struct pp_hwmgr *hwmgr,
+static int tonga_populate_smc_voltage_tables(struct pp_hwmgr *hwmgr,
 	SMU72_Discrete_DpmTable *table)
 {
 	int result;
@@ -1530,12 +1531,12 @@ static int tonga_get_dependecy_volt_by_clk(struct pp_hwmgr *hwmgr,
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_reset_to_default(struct pp_hwmgr *hwmgr)
+static int tonga_reset_to_default(struct pp_hwmgr *hwmgr)
 {
 	return (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_ResetToDefaults) == 0) ? 0 : 1;
 }
 
-int tonga_populate_memory_timing_parameters(
+static int tonga_populate_memory_timing_parameters(
 		struct pp_hwmgr *hwmgr,
 		uint32_t engine_clock,
 		uint32_t memory_clock,
@@ -1571,7 +1572,7 @@ int tonga_populate_memory_timing_parameters(
  * @return   always 0
  * This function is to be called from the SetPowerState table.
  */
-int tonga_program_memory_timing_parameters(struct pp_hwmgr *hwmgr)
+static int tonga_program_memory_timing_parameters(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	int result = 0;
@@ -2109,7 +2110,8 @@ static int tonga_populate_single_memory_level(
  * @param    mclk        the MCLK value to be used in the decision if MVDD should be high or low.
  * @param    voltage     the SMC VOLTAGE structure to be populated
  */
-int tonga_populate_mvdd_value(struct pp_hwmgr *hwmgr, uint32_t mclk, SMIO_Pattern *smio_pattern)
+static int tonga_populate_mvdd_value(struct pp_hwmgr *hwmgr, uint32_t mclk,
+		SMIO_Pattern *smio_pattern)
 {
 	const tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable);
@@ -2333,7 +2335,7 @@ static int tonga_populate_smc_boot_level(struct pp_hwmgr *hwmgr,
  * @param    engine_clock the engine clock to use to populate the structure
  * @param    sclk        the SMC SCLK structure to be populated
  */
-int tonga_calculate_sclk_params(struct pp_hwmgr *hwmgr,
+static int tonga_calculate_sclk_params(struct pp_hwmgr *hwmgr,
 		uint32_t engine_clock, SMU72_Discrete_GraphicsLevel *sclk)
 {
 	const tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
@@ -3123,7 +3125,7 @@ static void tonga_apply_dal_minimum_voltage_request(struct pp_hwmgr *hwmgr)
 	return;
 }
 
-int tonga_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
+static int tonga_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
 {
 	PPSMC_Result result;
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
@@ -3165,7 +3167,7 @@ int tonga_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
 }
 
 
-int tonga_force_dpm_highest(struct pp_hwmgr *hwmgr)
+static int tonga_force_dpm_highest(struct pp_hwmgr *hwmgr)
 {
 	uint32_t level, tmp;
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
@@ -3329,7 +3331,7 @@ static int tonga_set_private_var_based_on_pptale(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
+static int tonga_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	int result = 1;
@@ -3590,7 +3592,7 @@ static int tonga_patch_clock_voltage_limits_with_vddgfx_leakage(
 	return 0;
 }
 
-int tonga_sort_lookup_table(struct pp_hwmgr *hwmgr,
+static int tonga_sort_lookup_table(struct pp_hwmgr *hwmgr,
 		phm_ppt_v1_voltage_lookup_table *lookup_table)
 {
 	uint32_t table_size, i, j;
@@ -3666,7 +3668,7 @@ static int tonga_complete_dependency_tables(struct pp_hwmgr *hwmgr)
 	return result;
 }
 
-int tonga_init_sclk_threshold(struct pp_hwmgr *hwmgr)
+static int tonga_init_sclk_threshold(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 	data->low_sclk_interrupt_threshold = 0;
@@ -3674,7 +3676,7 @@ int tonga_init_sclk_threshold(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_setup_asic_task(struct pp_hwmgr *hwmgr)
+static int tonga_setup_asic_task(struct pp_hwmgr *hwmgr)
 {
 	int tmp_result, result = 0;
 
@@ -3711,7 +3713,7 @@ int tonga_setup_asic_task(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_enable_voltage_control(struct pp_hwmgr *hwmgr)
+static int tonga_enable_voltage_control(struct pp_hwmgr *hwmgr)
 {
 	/* enable voltage control */
 	PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, GENERAL_PWRMGT, VOLT_PWRMGT_EN, 1);
@@ -3724,7 +3726,7 @@ int tonga_enable_voltage_control(struct pp_hwmgr *hwmgr)
  *
  * @param    hwmgr  the address of the powerplay hardware manager.
  */
-bool cf_tonga_voltage_control(const struct pp_hwmgr *hwmgr)
+static bool cf_tonga_voltage_control(const struct pp_hwmgr *hwmgr)
 {
 	const struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 
@@ -3733,12 +3735,12 @@ bool cf_tonga_voltage_control(const struct pp_hwmgr *hwmgr)
 
 /*---------------------------MC----------------------------*/
 
-uint8_t tonga_get_memory_modile_index(struct pp_hwmgr *hwmgr)
+static uint8_t tonga_get_memory_modile_index(struct pp_hwmgr *hwmgr)
 {
 	return (uint8_t) (0xFF & (cgs_read_register(hwmgr->device, mmBIOS_SCRATCH_4) >> 16));
 }
 
-bool tonga_check_s0_mc_reg_index(uint16_t inReg, uint16_t *outReg)
+static bool tonga_check_s0_mc_reg_index(uint16_t inReg, uint16_t *outReg)
 {
 	bool result = true;
 
@@ -3831,7 +3833,7 @@ bool tonga_check_s0_mc_reg_index(uint16_t inReg, uint16_t *outReg)
 	return result;
 }
 
-int tonga_set_s0_mc_reg_index(phw_tonga_mc_reg_table *table)
+static int tonga_set_s0_mc_reg_index(phw_tonga_mc_reg_table *table)
 {
 	uint32_t i;
 	uint16_t address;
@@ -3844,7 +3846,9 @@ int tonga_set_s0_mc_reg_index(phw_tonga_mc_reg_table *table)
 	return 0;
 }
 
-int tonga_copy_vbios_smc_reg_table(const pp_atomctrl_mc_reg_table *table, phw_tonga_mc_reg_table *ni_table)
+static int
+tonga_copy_vbios_smc_reg_table(const pp_atomctrl_mc_reg_table *table,
+		phw_tonga_mc_reg_table *ni_table)
 {
 	uint8_t i, j;
 
@@ -3883,7 +3887,8 @@ int tonga_copy_vbios_smc_reg_table(const pp_atomctrl_mc_reg_table *table, phw_to
  * @param    table the address of MCRegTable
  * @return   always 0
  */
-int tonga_set_mc_special_registers(struct pp_hwmgr *hwmgr, phw_tonga_mc_reg_table *table)
+static int tonga_set_mc_special_registers(struct pp_hwmgr *hwmgr,
+		phw_tonga_mc_reg_table *table)
 {
 	uint8_t i, j, k;
 	uint32_t temp_reg;
@@ -3965,7 +3970,7 @@ int tonga_set_mc_special_registers(struct pp_hwmgr *hwmgr, phw_tonga_mc_reg_tabl
 	return 0;
 }
 
-int tonga_set_valid_flag(phw_tonga_mc_reg_table *table)
+static int tonga_set_valid_flag(phw_tonga_mc_reg_table *table)
 {
 	uint8_t i, j;
 	for (i = 0; i < table->last; i++) {
@@ -4039,7 +4044,7 @@ static int tonga_initialize_mc_reg_table(struct pp_hwmgr *hwmgr)
 * Copy one arb setting to another and then switch the active set.
 * arbFreqSrc and arbFreqDest is one of the MC_CG_ARB_FREQ_Fx constants.
 */
-int tonga_copy_and_switch_arb_sets(struct pp_hwmgr *hwmgr,
+static int tonga_copy_and_switch_arb_sets(struct pp_hwmgr *hwmgr,
 		uint32_t arbFreqSrc, uint32_t arbFreqDest)
 {
 	uint32_t mc_arb_dram_timing;
@@ -4096,7 +4101,7 @@ int tonga_copy_and_switch_arb_sets(struct pp_hwmgr *hwmgr,
  * @return   always 0
  * This function is to be called from the SetPowerState table.
  */
-int tonga_initial_switch_from_arb_f0_to_f1(struct pp_hwmgr *hwmgr)
+static int tonga_initial_switch_from_arb_f0_to_f1(struct pp_hwmgr *hwmgr)
 {
 	return tonga_copy_and_switch_arb_sets(hwmgr, MC_CG_ARB_FREQ_F0, MC_CG_ARB_FREQ_F1);
 }
@@ -4107,7 +4112,7 @@ int tonga_initial_switch_from_arb_f0_to_f1(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_init_arb_table_index(struct pp_hwmgr *hwmgr)
+static int tonga_init_arb_table_index(struct pp_hwmgr *hwmgr)
 {
 	const tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 	uint32_t tmp;
@@ -4132,7 +4137,8 @@ int tonga_init_arb_table_index(struct pp_hwmgr *hwmgr)
 			data->arb_table_start,  tmp, data->sram_end);
 }
 
-int tonga_populate_mc_reg_address(struct pp_hwmgr *hwmgr, SMU72_Discrete_MCRegisters *mc_reg_table)
+static int tonga_populate_mc_reg_address(struct pp_hwmgr *hwmgr,
+		SMU72_Discrete_MCRegisters *mc_reg_table)
 {
 	const struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 
@@ -4156,7 +4162,7 @@ int tonga_populate_mc_reg_address(struct pp_hwmgr *hwmgr, SMU72_Discrete_MCRegis
 }
 
 /*convert register values from driver to SMC format */
-void tonga_convert_mc_registers(
+static void tonga_convert_mc_registers(
 	const phw_tonga_mc_reg_entry * pEntry,
 	SMU72_Discrete_MCRegisterSet *pData,
 	uint32_t numEntries, uint32_t validflag)
@@ -4172,7 +4178,7 @@ void tonga_convert_mc_registers(
 }
 
 /* find the entry in the memory range table, then populate the value to SMC's tonga_mc_reg_table */
-int tonga_convert_mc_reg_table_entry_to_smc(
+static int tonga_convert_mc_reg_table_entry_to_smc(
 		struct pp_hwmgr *hwmgr,
 		const uint32_t memory_clock,
 		SMU72_Discrete_MCRegisterSet *mc_reg_table_data
@@ -4197,7 +4203,7 @@ int tonga_convert_mc_reg_table_entry_to_smc(
 	return 0;
 }
 
-int tonga_convert_mc_reg_table_to_smc(struct pp_hwmgr *hwmgr,
+static int tonga_convert_mc_reg_table_to_smc(struct pp_hwmgr *hwmgr,
 		SMU72_Discrete_MCRegisters *mc_reg_table)
 {
 	int result = 0;
@@ -4219,7 +4225,7 @@ int tonga_convert_mc_reg_table_to_smc(struct pp_hwmgr *hwmgr,
 	return result;
 }
 
-int tonga_populate_initial_mc_reg_table(struct pp_hwmgr *hwmgr)
+static int tonga_populate_initial_mc_reg_table(struct pp_hwmgr *hwmgr)
 {
 	int result;
 	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
@@ -4243,7 +4249,8 @@ int tonga_populate_initial_mc_reg_table(struct pp_hwmgr *hwmgr)
  * @param   hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_program_static_screen_threshold_parameters(struct pp_hwmgr *hwmgr)
+static int
+tonga_program_static_screen_threshold_parameters(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -4265,7 +4272,7 @@ int tonga_program_static_screen_threshold_parameters(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_enable_display_gap(struct pp_hwmgr *hwmgr)
+static int tonga_enable_display_gap(struct pp_hwmgr *hwmgr)
 {
 	uint32_t display_gap = cgs_read_ind_register(hwmgr->device,
 							CGS_IND_REG__SMC, ixCG_DISPLAY_GAP_CNTL);
@@ -4288,7 +4295,7 @@ int tonga_enable_display_gap(struct pp_hwmgr *hwmgr)
  * @param    hwmgr  the address of the powerplay hardware manager.
  * @return   always 0
  */
-int tonga_program_voting_clients(struct pp_hwmgr *hwmgr)
+static int tonga_program_voting_clients(struct pp_hwmgr *hwmgr)
 {
 	tonga_hwmgr *data = (tonga_hwmgr *)(hwmgr->backend);
 
@@ -4392,7 +4399,7 @@ static int tonga_disable_thermal_auto_throttle(struct pp_hwmgr *hwmgr)
 	return tonga_disable_auto_throttle_source(hwmgr, PHM_AutoThrottleSource_Thermal);
 }
 
-int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
+static int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
 {
 	int tmp_result, result = 0;
 
@@ -4481,7 +4488,7 @@ int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
 	return result;
 }
 
-int tonga_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
+static int tonga_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
 {
 	int tmp_result, result = 0;
 
@@ -4515,7 +4522,7 @@ int tonga_reset_asic_tasks(struct pp_hwmgr *hwmgr)
 	return result;
 }
 
-int tonga_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
+static int tonga_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
 {
 	return phm_hwmgr_backend_fini(hwmgr);
 }
@@ -4526,7 +4533,7 @@ int tonga_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
  * @param   hwmgr the address of the powerplay hardware manager.
  * @return   1 if success; otherwise appropriate error code.
  */
-int tonga_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
+static int tonga_hwmgr_backend_init(struct pp_hwmgr *hwmgr)
 {
 	int result = 0;
 	SMU72_Discrete_DpmTable  *table = NULL;
@@ -4930,7 +4937,7 @@ static int tonga_apply_state_adjust_rules(struct pp_hwmgr *hwmgr,
 	return 0;
 }
 
-int tonga_get_power_state_size(struct pp_hwmgr *hwmgr)
+static int tonga_get_power_state_size(struct pp_hwmgr *hwmgr)
 {
 	return sizeof(struct tonga_power_state);
 }
@@ -5869,7 +5876,7 @@ int tonga_notify_smc_display_config_after_ps_adjustment(struct pp_hwmgr *hwmgr)
 * @param    hwmgr  the address of the powerplay hardware manager.
 * @return   always OK
 */
-int tonga_program_display_gap(struct pp_hwmgr *hwmgr)
+static int tonga_program_display_gap(struct pp_hwmgr *hwmgr)
 {
 	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 	uint32_t num_active_displays = 0;
@@ -5913,7 +5920,7 @@ int tonga_program_display_gap(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
+static int tonga_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
 {
 
 	tonga_program_display_gap(hwmgr);
@@ -5971,7 +5978,7 @@ uint32_t tonga_get_xclk(struct pp_hwmgr *hwmgr)
 	return reference_clock;
 }
 
-int tonga_dpm_set_interrupt_state(void *private_data,
+static int tonga_dpm_set_interrupt_state(void *private_data,
 					 unsigned src_id, unsigned type,
 					 int enabled)
 {
@@ -6011,7 +6018,7 @@ int tonga_dpm_set_interrupt_state(void *private_data,
 	return 0;
 }
 
-int tonga_register_internal_thermal_interrupt(struct pp_hwmgr *hwmgr,
+static int tonga_register_internal_thermal_interrupt(struct pp_hwmgr *hwmgr,
 					const void *thermal_interrupt_info)
 {
 	int result;
@@ -6038,7 +6045,8 @@ int tonga_register_internal_thermal_interrupt(struct pp_hwmgr *hwmgr,
 	return 0;
 }
 
-bool tonga_check_smc_update_required_for_display_configuration(struct pp_hwmgr *hwmgr)
+static bool tonga_check_smc_update_required_for_display_configuration(
+			struct pp_hwmgr *hwmgr)
 {
 	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 	bool is_update_required = false;
@@ -6066,7 +6074,9 @@ static inline bool tonga_are_power_levels_equal(const struct tonga_performance_l
 		  (pl1->pcie_lane == pl2->pcie_lane));
 }
 
-int tonga_check_states_equal(struct pp_hwmgr *hwmgr, const struct pp_hw_power_state *pstate1, const struct pp_hw_power_state *pstate2, bool *equal)
+static int tonga_check_states_equal(struct pp_hwmgr *hwmgr,
+		const struct pp_hw_power_state *pstate1,
+		const struct pp_hw_power_state *pstate2, bool *equal)
 {
 	const struct tonga_power_state *psa = cast_const_phw_tonga_power_state(pstate1);
 	const struct tonga_power_state *psb = cast_const_phw_tonga_power_state(pstate2);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
index 47ef1ca..0cd42ae 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
@@ -138,7 +138,7 @@ int tonga_fan_ctrl_set_default_mode(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-int tonga_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
+static int tonga_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
 {
 	int result;
 
@@ -360,7 +360,8 @@ int tonga_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
 * @param    Result the last failure code
 * @return   result from set temperature range routine
 */
-int tf_tonga_thermal_setup_fan_table(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
+static int tf_tonga_thermal_setup_fan_table(struct pp_hwmgr *hwmgr,
+		void *input, void *output, void *storage, int result)
 {
 	struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 	SMU72_Discrete_FanTable fan_table = { FDO_MODE_HARDWARE };
@@ -451,7 +452,9 @@ int tf_tonga_thermal_setup_fan_table(struct pp_hwmgr *hwmgr, void *input, void *
 * @param    Result the last failure code
 * @return   result from set temperature range routine
 */
-int tf_tonga_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
+static int
+tf_tonga_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr, void *input,
+		void *output, void *storage, int result)
 {
 /* If the fantable setup has failed we could have disabled PHM_PlatformCaps_MicrocodeFanControl even after this function was included in the table.
  * Make sure that we still think controlling the fan is OK.
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
index 8e52a2e..96fc38e 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
@@ -187,7 +187,7 @@ int fiji_copy_bytes_to_smc(struct pp_smumgr *smumgr,
 	return 0;
 }
 
-int fiji_program_jump_on_start(struct pp_smumgr *smumgr)
+static int fiji_program_jump_on_start(struct pp_smumgr *smumgr)
 {
 	static const unsigned char data[] = { 0xE0, 0x00, 0x80, 0x40 };
 
@@ -201,7 +201,7 @@ int fiji_program_jump_on_start(struct pp_smumgr *smumgr)
 *
 * @param    smumgr  the address of the powerplay hardware manager.
 */
-bool fiji_is_smc_ram_running(struct pp_smumgr *smumgr)
+static bool fiji_is_smc_ram_running(struct pp_smumgr *smumgr)
 {
 	return ((0 == SMUM_READ_VFPF_INDIRECT_FIELD(smumgr->device,
 			CGS_IND_REG__SMC,
@@ -217,7 +217,7 @@ bool fiji_is_smc_ram_running(struct pp_smumgr *smumgr)
 * @param    msg the message to send.
 * @return   The response that came from the SMC.
 */
-int fiji_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg)
+static int fiji_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg)
 {
 	if (!fiji_is_smc_ram_running(smumgr))
 		return -1;
@@ -240,7 +240,7 @@ int fiji_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg)
  * @param    parameter: the parameter to send
  * @return   The response that came from the SMC.
  */
-int fiji_send_msg_to_smc_with_parameter(struct pp_smumgr *smumgr,
+static int fiji_send_msg_to_smc_with_parameter(struct pp_smumgr *smumgr,
 		uint16_t msg, uint32_t parameter)
 {
 	if (!fiji_is_smc_ram_running(smumgr))
@@ -267,7 +267,7 @@ int fiji_send_msg_to_smc_with_parameter(struct pp_smumgr *smumgr,
 * @param    parameter: the parameter to send
 * @return   The response that came from the SMC.
 */
-int fiji_send_msg_to_smc_with_parameter_without_waiting(
+static int fiji_send_msg_to_smc_with_parameter_without_waiting(
 		struct pp_smumgr *smumgr, uint16_t msg, uint32_t parameter)
 {
 	if (1 != SMUM_READ_FIELD(smumgr->device, SMC_RESP_0, SMC_RESP)) {
@@ -661,7 +661,7 @@ static int fiji_start_smu_in_non_protection_mode(struct pp_smumgr *smumgr)
 	return result;
 }
 
-int fiji_setup_pwr_virus(struct pp_smumgr *smumgr)
+static int fiji_setup_pwr_virus(struct pp_smumgr *smumgr)
 {
 	int i, result = -1;
 	uint32_t reg, data;
@@ -726,7 +726,7 @@ static int fiji_start_avfs_btc(struct pp_smumgr *smumgr)
 	return result;
 }
 
-int fiji_setup_pm_fuse_for_avfs(struct pp_smumgr *smumgr)
+static int fiji_setup_pm_fuse_for_avfs(struct pp_smumgr *smumgr)
 {
 	int result = 0;
 	uint32_t table_start;
@@ -762,7 +762,7 @@ int fiji_setup_pm_fuse_for_avfs(struct pp_smumgr *smumgr)
 	return result;
 }
 
-int fiji_setup_graphics_level_structure(struct pp_smumgr *smumgr)
+static int fiji_setup_graphics_level_structure(struct pp_smumgr *smumgr)
 {
 	int32_t vr_config;
 	uint32_t table_start;
@@ -801,7 +801,7 @@ int fiji_setup_graphics_level_structure(struct pp_smumgr *smumgr)
 }
 
 /* Work in Progress */
-int fiji_restore_vft_table(struct pp_smumgr *smumgr)
+static int fiji_restore_vft_table(struct pp_smumgr *smumgr)
 {
 	struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend);
 
@@ -813,7 +813,7 @@ int fiji_restore_vft_table(struct pp_smumgr *smumgr)
 }
 
 /* Work in Progress */
-int fiji_save_vft_table(struct pp_smumgr *smumgr)
+static int fiji_save_vft_table(struct pp_smumgr *smumgr)
 {
 	struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend);
 
@@ -824,7 +824,7 @@ int fiji_save_vft_table(struct pp_smumgr *smumgr)
 		return -EINVAL;
 }
 
-int fiji_avfs_event_mgr(struct pp_smumgr *smumgr, bool smu_started)
+static int fiji_avfs_event_mgr(struct pp_smumgr *smumgr, bool smu_started)
 {
 	struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend);
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c
index f506583..e5a2b0c 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c
@@ -164,7 +164,7 @@ static void iceland_pp_reset_smc(struct pp_smumgr *smumgr)
 				  rst_reg, 1);
 }
 
-int iceland_program_jump_on_start(struct pp_smumgr *smumgr)
+static int iceland_program_jump_on_start(struct pp_smumgr *smumgr)
 {
 	static const unsigned char pData[] = { 0xE0, 0x00, 0x80, 0x40 };
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
index 8047ad2..2cd0d78 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
@@ -211,7 +211,7 @@ static int polaris10_program_jump_on_start(struct pp_smumgr *smumgr)
 *
 * @param    smumgr  the address of the powerplay hardware manager.
 */
-bool polaris10_is_smc_ram_running(struct pp_smumgr *smumgr)
+static bool polaris10_is_smc_ram_running(struct pp_smumgr *smumgr)
 {
 	return ((0 == SMUM_READ_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, SMC_SYSCON_CLOCK_CNTL_0, ck_disable))
 	&& (0x20100 <= cgs_read_ind_register(smumgr->device, CGS_IND_REG__SMC, ixSMC_PC_C)));
@@ -236,7 +236,8 @@ static bool polaris10_is_hw_avfs_present(struct pp_smumgr *smumgr)
 * @param    msg the message to send.
 * @return   The response that came from the SMC.
 */
-int polaris10_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg)
+static int
+polaris10_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg)
 {
 	int ret;
 
@@ -271,7 +272,9 @@ int polaris10_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg)
 * @param    msg the message to send.
 * @return   Always return 0.
 */
-int polaris10_send_msg_to_smc_without_waiting(struct pp_smumgr *smumgr, uint16_t msg)
+static int
+polaris10_send_msg_to_smc_without_waiting(struct pp_smumgr *smumgr,
+		uint16_t msg)
 {
 	cgs_write_register(smumgr->device, mmSMC_MESSAGE_0, msg);
 
@@ -286,7 +289,9 @@ int polaris10_send_msg_to_smc_without_waiting(struct pp_smumgr *smumgr, uint16_t
 * @param    parameter: the parameter to send
 * @return   The response that came from the SMC.
 */
-int polaris10_send_msg_to_smc_with_parameter(struct pp_smumgr *smumgr, uint16_t msg, uint32_t parameter)
+static int
+polaris10_send_msg_to_smc_with_parameter(struct pp_smumgr *smumgr,
+		uint16_t msg, uint32_t parameter)
 {
 	if (!polaris10_is_smc_ram_running(smumgr)) {
 		return -1;
@@ -315,7 +320,7 @@ int polaris10_send_msg_to_smc_with_parameter_without_waiting(struct pp_smumgr *s
 	return polaris10_send_msg_to_smc_without_waiting(smumgr, msg);
 }
 
-int polaris10_send_msg_to_smc_offset(struct pp_smumgr *smumgr)
+static int polaris10_send_msg_to_smc_offset(struct pp_smumgr *smumgr)
 {
 	cgs_write_register(smumgr->device, mmSMC_MSG_ARG_0, 0x20000);
 
@@ -479,7 +484,7 @@ int polaris10_write_smc_sram_dword(struct pp_smumgr *smumgr, uint32_t smc_addr,
 }
 
 
-int polaris10_smu_fini(struct pp_smumgr *smumgr)
+static int polaris10_smu_fini(struct pp_smumgr *smumgr)
 {
 	if (smumgr->backend) {
 		kfree(smumgr->backend);
@@ -685,7 +690,7 @@ static int polaris10_perform_btc(struct pp_smumgr *smumgr)
 }
 
 
-int polaris10_setup_graphics_level_structure(struct pp_smumgr *smumgr)
+static int polaris10_setup_graphics_level_structure(struct pp_smumgr *smumgr)
 {
 	uint32_t vr_config;
 	uint32_t dpm_table_start;
@@ -739,7 +744,8 @@ int polaris10_setup_graphics_level_structure(struct pp_smumgr *smumgr)
 	return 0;
 }
 
-int polaris10_avfs_event_mgr(struct pp_smumgr *smumgr, bool SMU_VFT_INTACT)
+static int
+polaris10_avfs_event_mgr(struct pp_smumgr *smumgr, bool SMU_VFT_INTACT)
 {
 	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(smumgr->backend);
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
index f42c536..2efdd98 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
@@ -143,7 +143,7 @@ int tonga_copy_bytes_to_smc(struct pp_smumgr *smumgr,
 }
 
 
-int tonga_program_jump_on_start(struct pp_smumgr *smumgr)
+static int tonga_program_jump_on_start(struct pp_smumgr *smumgr)
 {
 	static const unsigned char pData[] = { 0xE0, 0x00, 0x80, 0x40 };
 
-- 
2.7.4



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