No longer insert ras blocks into ras_list if it already exists in ras_list.
Signed-off-by: yipechai <YiPeng.Chai@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 62be0b4909b3..e6d3bb4b56e4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -2754,9 +2754,17 @@ int amdgpu_ras_reset_gpu(struct amdgpu_device *adev)
int amdgpu_ras_register_ras_block(struct amdgpu_device *adev,
struct amdgpu_ras_block_object* ras_block_obj)
{
+ struct amdgpu_ras_block_object *obj, *tmp;
if (!adev || !amdgpu_ras_asic_supported(adev) || !ras_block_obj)
return -EINVAL;
+ /* If the ras object had been in ras_list, doesn't add it to ras_list again */
+ list_for_each_entry_safe(obj, tmp, &adev->ras_list, node) {
+ if (obj == ras_block_obj) {
+ return 0;
+ }
+ }
+
INIT_LIST_HEAD(&ras_block_obj->node);
list_add_tail(&ras_block_obj->node, &adev->ras_list);
--
2.25.1
