Re: [PATCH] drm/amd/pp: Fix static checker warning

2018-05-18 Thread Alex Deucher
On Fri, May 18, 2018 at 2:28 AM, Rex Zhu  wrote:
> error: uninitialized symbol ''
>
> Signed-off-by: Rex Zhu 

Reviewed-by: Alex Deucher 

> ---
>  drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c   | 24 
> +-
>  drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c   |  3 ++-
>  drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c |  6 ++
>  3 files changed, 14 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c 
> b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
> index ec38c9f..7047e29 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
> @@ -1104,10 +1104,8 @@ int atomctrl_get_voltage_evv_on_sclk(
> GetIndexIntoMasterTable(COMMAND, GetVoltageInfo),
> (uint32_t *)&get_voltage_info_param_space);
>
> -   if (0 != result)
> -   return result;
> -
> -   *voltage = le16_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 *)
> +   *voltage = result ? 0 :
> +   
> le16_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 *)
> 
> (&get_voltage_info_param_space))->usVoltageLevel);
>
> return result;
> @@ -1312,8 +1310,7 @@ int atomctrl_read_efuse(struct pp_hwmgr *hwmgr, 
> uint16_t start_index,
> result = amdgpu_atom_execute_table(adev->mode_info.atom_context,
> GetIndexIntoMasterTable(COMMAND, ReadEfuseValue),
> (uint32_t *)&efuse_param);
> -   if (!result)
> -   *efuse = le32_to_cpu(efuse_param.ulEfuseValue) & mask;
> +   *efuse = result ? 0 : le32_to_cpu(efuse_param.ulEfuseValue) & mask;
>
> return result;
>  }
> @@ -1354,11 +1351,8 @@ int atomctrl_get_voltage_evv_on_sclk_ai(struct 
> pp_hwmgr *hwmgr, uint8_t voltage_
> GetIndexIntoMasterTable(COMMAND, GetVoltageInfo),
> (uint32_t *)&get_voltage_info_param_space);
>
> -   if (0 != result)
> -   return result;
> -
> -   *voltage = le32_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_3 *)
> -   
> (&get_voltage_info_param_space))->ulVoltageLevel);
> +   *voltage = result ? 0 :
> +   le32_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_3 
> *)(&get_voltage_info_param_space))->ulVoltageLevel);
>
> return result;
>  }
> @@ -1552,15 +1546,17 @@ void atomctrl_get_voltage_range(struct pp_hwmgr 
> *hwmgr, uint32_t *max_vddc,
> case CHIP_FIJI:
> *max_vddc = 
> le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_3 *)profile)->ulMaxVddc/4);
> *min_vddc = 
> le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_3 *)profile)->ulMinVddc/4);
> -   break;
> +   return;
> case CHIP_POLARIS11:
> case CHIP_POLARIS10:
> case CHIP_POLARIS12:
> *max_vddc = 
> le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_6 *)profile)->ulMaxVddc/100);
> *min_vddc = 
> le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_6 *)profile)->ulMinVddc/100);
> -   break;
> -   default:
> return;
> +   default:
> +   break;
> }
> }
> +   *max_vddc = 0;
> +   *min_vddc = 0;
>  }
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c 
> b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> index 646c9e9..45e9b8c 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> @@ -860,7 +860,8 @@ static void smu7_setup_voltage_range_from_vbios(struct 
> pp_hwmgr *hwmgr)
> struct phm_ppt_v1_clock_voltage_dependency_table *dep_sclk_table;
> struct phm_ppt_v1_information *table_info =
> (struct phm_ppt_v1_information *)(hwmgr->pptable);
> -   uint32_t min_vddc, max_vddc;
> +   uint32_t min_vddc = 0;
> +   uint32_t max_vddc = 0;
>
> if (!table_info)
> return;
> diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c 
> b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
> index 64d33b7..d644a9b 100644
> --- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
> +++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
> @@ -283,11 +283,9 @@ int smu7_read_smc_sram_dword(struct pp_hwmgr *hwmgr, 
> uint32_t smc_addr, uint32_t
>
> result = smu7_set_smc_sram_address(hwmgr, smc_addr, limit);
>
> -   if (result)
> -   return result;
> +   *value = result ? 0 : cgs_read_register(hwmgr->device, 
> mmSMC_IND_DATA_11);
>
> -   *value = cgs_read_register(hwmgr->device, mmSMC_IND_DATA_11);
> -   return 0;
> +   return result;
>  }
>
>  int smu7_write_smc_sram_dword(struct pp_hwmgr *hwmgr, uint32_t 

[PATCH] drm/amd/pp: Fix static checker warning

2018-05-17 Thread Rex Zhu
error: uninitialized symbol ''

Signed-off-by: Rex Zhu 
---
 drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c   | 24 +-
 drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c   |  3 ++-
 drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c |  6 ++
 3 files changed, 14 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c 
b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
index ec38c9f..7047e29 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c
@@ -1104,10 +1104,8 @@ int atomctrl_get_voltage_evv_on_sclk(
GetIndexIntoMasterTable(COMMAND, GetVoltageInfo),
(uint32_t *)&get_voltage_info_param_space);
 
-   if (0 != result)
-   return result;
-
-   *voltage = le16_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 *)
+   *voltage = result ? 0 :
+   
le16_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 *)

(&get_voltage_info_param_space))->usVoltageLevel);
 
return result;
@@ -1312,8 +1310,7 @@ int atomctrl_read_efuse(struct pp_hwmgr *hwmgr, uint16_t 
start_index,
result = amdgpu_atom_execute_table(adev->mode_info.atom_context,
GetIndexIntoMasterTable(COMMAND, ReadEfuseValue),
(uint32_t *)&efuse_param);
-   if (!result)
-   *efuse = le32_to_cpu(efuse_param.ulEfuseValue) & mask;
+   *efuse = result ? 0 : le32_to_cpu(efuse_param.ulEfuseValue) & mask;
 
return result;
 }
@@ -1354,11 +1351,8 @@ int atomctrl_get_voltage_evv_on_sclk_ai(struct pp_hwmgr 
*hwmgr, uint8_t voltage_
GetIndexIntoMasterTable(COMMAND, GetVoltageInfo),
(uint32_t *)&get_voltage_info_param_space);
 
-   if (0 != result)
-   return result;
-
-   *voltage = le32_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_3 *)
-   
(&get_voltage_info_param_space))->ulVoltageLevel);
+   *voltage = result ? 0 :
+   le32_to_cpu(((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_3 
*)(&get_voltage_info_param_space))->ulVoltageLevel);
 
return result;
 }
@@ -1552,15 +1546,17 @@ void atomctrl_get_voltage_range(struct pp_hwmgr *hwmgr, 
uint32_t *max_vddc,
case CHIP_FIJI:
*max_vddc = le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_3 
*)profile)->ulMaxVddc/4);
*min_vddc = le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_3 
*)profile)->ulMinVddc/4);
-   break;
+   return;
case CHIP_POLARIS11:
case CHIP_POLARIS10:
case CHIP_POLARIS12:
*max_vddc = le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_6 
*)profile)->ulMaxVddc/100);
*min_vddc = le32_to_cpu(((ATOM_ASIC_PROFILING_INFO_V3_6 
*)profile)->ulMinVddc/100);
-   break;
-   default:
return;
+   default:
+   break;
}
}
+   *max_vddc = 0;
+   *min_vddc = 0;
 }
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c 
b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index 646c9e9..45e9b8c 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -860,7 +860,8 @@ static void smu7_setup_voltage_range_from_vbios(struct 
pp_hwmgr *hwmgr)
struct phm_ppt_v1_clock_voltage_dependency_table *dep_sclk_table;
struct phm_ppt_v1_information *table_info =
(struct phm_ppt_v1_information *)(hwmgr->pptable);
-   uint32_t min_vddc, max_vddc;
+   uint32_t min_vddc = 0;
+   uint32_t max_vddc = 0;
 
if (!table_info)
return;
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c 
b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
index 64d33b7..d644a9b 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
@@ -283,11 +283,9 @@ int smu7_read_smc_sram_dword(struct pp_hwmgr *hwmgr, 
uint32_t smc_addr, uint32_t
 
result = smu7_set_smc_sram_address(hwmgr, smc_addr, limit);
 
-   if (result)
-   return result;
+   *value = result ? 0 : cgs_read_register(hwmgr->device, 
mmSMC_IND_DATA_11);
 
-   *value = cgs_read_register(hwmgr->device, mmSMC_IND_DATA_11);
-   return 0;
+   return result;
 }
 
 int smu7_write_smc_sram_dword(struct pp_hwmgr *hwmgr, uint32_t smc_addr, 
uint32_t value, uint32_t limit)
-- 
1.9.1

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