Re: [PATCH] drm/amd/powerplay/fiji: mark symbols static where possible

From: Christian KÃnig
Date: Tue Sep 06 2016 - 05:01:29 EST


Am 06.09.2016 um 08:16 schrieb Baoyou Xie:
We get a few warnings when building kernel with W=1:
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/fiji_hwmgr.c:1633:9: warning: no previous prototype
for 'fiji_get_voltage_index' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/fiji_hwmgr.c:5412:5: warning: no previous prototype
for 'fiji_check_states_equal' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/../powerplay/hwmgr/fiji_thermal.c:424:5: warning: no previous prototype
for 'tf_fiji_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@xxxxxxxxxx>

Reviewed-by: Christian König <christian.koenig@xxxxxxx>

---
drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c | 33 +++++++++++++---------
drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c | 6 ++--
2 files changed, 22 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c
index 120a9e2..a4726c4 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c
@@ -113,7 +113,7 @@ static const uint8_t fiji_clock_stretch_amount_conversion[2][6] =
static const unsigned long PhwFiji_Magic = (unsigned long)(PHM_VIslands_Magic);
-struct fiji_power_state *cast_phw_fiji_power_state(
+static struct fiji_power_state *cast_phw_fiji_power_state(
struct pp_hw_power_state *hw_ps)
{
PP_ASSERT_WITH_CODE((PhwFiji_Magic == hw_ps->magic),
@@ -123,7 +123,8 @@ struct fiji_power_state *cast_phw_fiji_power_state(
return (struct fiji_power_state *)hw_ps;
}
-const struct fiji_power_state *cast_const_phw_fiji_power_state(
+static const struct
+fiji_power_state *cast_const_phw_fiji_power_state(
const struct pp_hw_power_state *hw_ps)
{
PP_ASSERT_WITH_CODE((PhwFiji_Magic == hw_ps->magic),
@@ -1630,7 +1631,7 @@ static int fiji_setup_default_dpm_tables(struct pp_hwmgr *hwmgr)
* @param voltage - voltage to look for
* @return 0 on success
*/
-uint8_t fiji_get_voltage_index(
+static uint8_t fiji_get_voltage_index(
struct phm_ppt_v1_voltage_lookup_table *lookup_table, uint16_t voltage)
{
uint8_t count = (uint8_t) (lookup_table->count);
@@ -1694,7 +1695,7 @@ static int fiji_populate_cac_table(struct pp_hwmgr *hwmgr,
* @return always 0
*/
-int fiji_populate_smc_voltage_tables(struct pp_hwmgr *hwmgr,
+static int fiji_populate_smc_voltage_tables(struct pp_hwmgr *hwmgr,
struct SMU73_Discrete_DpmTable *table)
{
int result;
@@ -2305,7 +2306,7 @@ static int fiji_populate_all_memory_levels(struct pp_hwmgr *hwmgr)
* @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 fiji_populate_mvdd_value(struct pp_hwmgr *hwmgr,
+static int fiji_populate_mvdd_value(struct pp_hwmgr *hwmgr,
uint32_t mclk, SMIO_Pattern *smio_pat)
{
const struct fiji_hwmgr *data = (struct fiji_hwmgr *)(hwmgr->backend);
@@ -4626,7 +4627,7 @@ static int fiji_generate_dpm_level_enable_mask(
return 0;
}
-int fiji_enable_disable_uvd_dpm(struct pp_hwmgr *hwmgr, bool enable)
+static int fiji_enable_disable_uvd_dpm(struct pp_hwmgr *hwmgr, bool enable)
{
return smum_send_msg_to_smc(hwmgr->smumgr, enable ?
(PPSMC_Msg)PPSMC_MSG_UVDDPM_Enable :
@@ -4640,14 +4641,14 @@ int fiji_enable_disable_vce_dpm(struct pp_hwmgr *hwmgr, bool enable)
PPSMC_MSG_VCEDPM_Disable);
}
-int fiji_enable_disable_samu_dpm(struct pp_hwmgr *hwmgr, bool enable)
+static int fiji_enable_disable_samu_dpm(struct pp_hwmgr *hwmgr, bool enable)
{
return smum_send_msg_to_smc(hwmgr->smumgr, enable?
PPSMC_MSG_SAMUDPM_Enable :
PPSMC_MSG_SAMUDPM_Disable);
}
-int fiji_enable_disable_acp_dpm(struct pp_hwmgr *hwmgr, bool enable)
+static int fiji_enable_disable_acp_dpm(struct pp_hwmgr *hwmgr, bool enable)
{
return smum_send_msg_to_smc(hwmgr->smumgr, enable?
PPSMC_MSG_ACPDPM_Enable :
@@ -4884,7 +4885,7 @@ static void fiji_apply_dal_minimum_voltage_request(struct pp_hwmgr *hwmgr)
return;
}
-int fiji_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
+static int fiji_upload_dpm_level_enable_mask(struct pp_hwmgr *hwmgr)
{
int result;
struct fiji_hwmgr *data = (struct fiji_hwmgr *)(hwmgr->backend);
@@ -5160,7 +5161,7 @@ static int fiji_program_display_gap(struct pp_hwmgr *hwmgr)
return 0;
}
-int fiji_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
+static int fiji_display_configuration_changed_task(struct pp_hwmgr *hwmgr)
{
return fiji_program_display_gap(hwmgr);
}
@@ -5191,7 +5192,7 @@ static int fiji_set_max_fan_rpm_output(struct pp_hwmgr *hwmgr,
PPSMC_MSG_SetFanRpmMax, us_max_fan_rpm);
}
-int fiji_dpm_set_interrupt_state(void *private_data,
+static int fiji_dpm_set_interrupt_state(void *private_data,
unsigned src_id, unsigned type,
int enabled)
{
@@ -5239,7 +5240,7 @@ int fiji_dpm_set_interrupt_state(void *private_data,
return 0;
}
-int fiji_register_internal_thermal_interrupt(struct pp_hwmgr *hwmgr,
+static int fiji_register_internal_thermal_interrupt(struct pp_hwmgr *hwmgr,
const void *thermal_interrupt_info)
{
int result;
@@ -5409,7 +5410,10 @@ static inline bool fiji_are_power_levels_equal(const struct fiji_performance_lev
(pl1->pcie_lane == pl2->pcie_lane));
}
-int fiji_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
+fiji_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 fiji_power_state *psa = cast_const_phw_fiji_power_state(pstate1);
const struct fiji_power_state *psb = cast_const_phw_fiji_power_state(pstate2);
@@ -5441,7 +5445,8 @@ int fiji_check_states_equal(struct pp_hwmgr *hwmgr, const struct pp_hw_power_sta
return 0;
}
-bool fiji_check_smc_update_required_for_display_configuration(struct pp_hwmgr *hwmgr)
+static bool
+fiji_check_smc_update_required_for_display_configuration(struct pp_hwmgr *hwmgr)
{
struct fiji_hwmgr *data = (struct fiji_hwmgr *)(hwmgr->backend);
bool is_update_required = false;
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c
index 92976b6..7f431e7 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_thermal.c
@@ -152,7 +152,7 @@ int fiji_fan_ctrl_set_default_mode(struct pp_hwmgr *hwmgr)
return 0;
}
-int fiji_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
+static int fiji_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
{
int result;
@@ -421,7 +421,7 @@ int fiji_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
* @param Result the last failure code
* @return result from set temperature range routine
*/
-int tf_fiji_thermal_setup_fan_table(struct pp_hwmgr *hwmgr,
+static int tf_fiji_thermal_setup_fan_table(struct pp_hwmgr *hwmgr,
void *input, void *output, void *storage, int result)
{
struct fiji_hwmgr *data = (struct fiji_hwmgr *)(hwmgr->backend);
@@ -533,7 +533,7 @@ int tf_fiji_thermal_setup_fan_table(struct pp_hwmgr *hwmgr,
* @param Result the last failure code
* @return result from set temperature range routine
*/
-int tf_fiji_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr,
+static int tf_fiji_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