[PATCH AUTOSEL 6.6 03/20] drm/amdgpu/pm: Fix the param type of set_power_profile_mode

[Sasha Levin]

From: Ma Jun <Jun.Ma2@xxxxxxx>

[ Upstream commit f683f24093dd94a831085fe0ea8e9dc4c6c1a2d1 ]

Function .set_power_profile_mode need an array as input
parameter. So define variable workload as an array to fix
the below coverity warning.

"Passing &workload to function hwmgr->hwmgr_func->set_power_profile_mode
which uses it as an array. This might corrupt or misinterpret adjacent
memory locations"

Signed-off-by: Ma Jun <Jun.Ma2@xxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c |  8 ++++----
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c  |  8 ++++----
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c        | 16 ++++++++--------
 3 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
index 9e4f8a4104a34..7bf46e4974f88 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
@@ -927,7 +927,7 @@ static int pp_dpm_switch_power_profile(void *handle,
 		enum PP_SMC_POWER_PROFILE type, bool en)
 {
 	struct pp_hwmgr *hwmgr = handle;
-	long workload;
+	long workload[1];
 	uint32_t index;
 
 	if (!hwmgr || !hwmgr->pm_en)
@@ -945,12 +945,12 @@ static int pp_dpm_switch_power_profile(void *handle,
 		hwmgr->workload_mask &= ~(1 << hwmgr->workload_prority[type]);
 		index = fls(hwmgr->workload_mask);
 		index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0;
-		workload = hwmgr->workload_setting[index];
+		workload[0] = hwmgr->workload_setting[index];
 	} else {
 		hwmgr->workload_mask |= (1 << hwmgr->workload_prority[type]);
 		index = fls(hwmgr->workload_mask);
 		index = index <= Workload_Policy_Max ? index - 1 : 0;
-		workload = hwmgr->workload_setting[index];
+		workload[0] = hwmgr->workload_setting[index];
 	}
 
 	if (type == PP_SMC_POWER_PROFILE_COMPUTE &&
@@ -960,7 +960,7 @@ static int pp_dpm_switch_power_profile(void *handle,
 	}
 
 	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
-		hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
+		hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, workload, 0);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
index 1d829402cd2e2..f4bd8e9357e22 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
@@ -269,7 +269,7 @@ int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip_display_set
 						struct pp_power_state *new_ps)
 {
 	uint32_t index;
-	long workload;
+	long workload[1];
 
 	if (hwmgr->not_vf) {
 		if (!skip_display_settings)
@@ -294,10 +294,10 @@ int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip_display_set
 	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
 		index = fls(hwmgr->workload_mask);
 		index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0;
-		workload = hwmgr->workload_setting[index];
+		workload[0] = hwmgr->workload_setting[index];
 
-		if (hwmgr->power_profile_mode != workload && hwmgr->hwmgr_func->set_power_profile_mode)
-			hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
+		if (hwmgr->power_profile_mode != workload[0] && hwmgr->hwmgr_func->set_power_profile_mode)
+			hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, workload, 0);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 56e4c312cb7a9..1402e468aa90f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1846,7 +1846,7 @@ static int smu_adjust_power_state_dynamic(struct smu_context *smu,
 {
 	int ret = 0;
 	int index = 0;
-	long workload;
+	long workload[1];
 	struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
 
 	if (!skip_display_settings) {
@@ -1886,10 +1886,10 @@ static int smu_adjust_power_state_dynamic(struct smu_context *smu,
 		smu_dpm_ctx->dpm_level != AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM) {
 		index = fls(smu->workload_mask);
 		index = index > 0 && index <= WORKLOAD_POLICY_MAX ? index - 1 : 0;
-		workload = smu->workload_setting[index];
+		workload[0] = smu->workload_setting[index];
 
-		if (smu->power_profile_mode != workload)
-			smu_bump_power_profile_mode(smu, &workload, 0);
+		if (smu->power_profile_mode != workload[0])
+			smu_bump_power_profile_mode(smu, workload, 0);
 	}
 
 	return ret;
@@ -1939,7 +1939,7 @@ static int smu_switch_power_profile(void *handle,
 {
 	struct smu_context *smu = handle;
 	struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
-	long workload;
+	long workload[1];
 	uint32_t index;
 
 	if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
@@ -1952,17 +1952,17 @@ static int smu_switch_power_profile(void *handle,
 		smu->workload_mask &= ~(1 << smu->workload_prority[type]);
 		index = fls(smu->workload_mask);
 		index = index > 0 && index <= WORKLOAD_POLICY_MAX ? index - 1 : 0;
-		workload = smu->workload_setting[index];
+		workload[0] = smu->workload_setting[index];
 	} else {
 		smu->workload_mask |= (1 << smu->workload_prority[type]);
 		index = fls(smu->workload_mask);
 		index = index <= WORKLOAD_POLICY_MAX ? index - 1 : 0;
-		workload = smu->workload_setting[index];
+		workload[0] = smu->workload_setting[index];
 	}
 
 	if (smu_dpm_ctx->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL &&
 		smu_dpm_ctx->dpm_level != AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM)
-		smu_bump_power_profile_mode(smu, &workload, 0);
+		smu_bump_power_profile_mode(smu, workload, 0);
 
 	return 0;
 }
-- 
2.43.0