[PATCH AUTOSEL 6.1 40/61] drm/amd/display: Correct the defined value for AMDGPU_DMUB_NOTIFICATION_MAX

From: Sasha Levin
Date: Wed Jul 31 2024 - 21:15:55 EST


From: Wayne Lin <wayne.lin@xxxxxxx>

[ Upstream commit ad28d7c3d989fc5689581664653879d664da76f0 ]

[Why & How]
It actually exposes '6' types in enum dmub_notification_type. Not 5. Using smaller
number to create array dmub_callback & dmub_thread_offload has potential to access
item out of array bound. Fix it.

Reviewed-by: Jerry Zuo <jerry.zuo@xxxxxxx>
Acked-by: Zaeem Mohamed <zaeem.mohamed@xxxxxxx>
Signed-off-by: Wayne Lin <wayne.lin@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index 2c9a33c80c818..df18b4df1f2c1 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -49,7 +49,7 @@

#define AMDGPU_DM_MAX_NUM_EDP 2

-#define AMDGPU_DMUB_NOTIFICATION_MAX 5
+#define AMDGPU_DMUB_NOTIFICATION_MAX 6

/*
#include "include/amdgpu_dal_power_if.h"
--
2.43.0