From: Kevin Wang <kevin1.wang@amd.com>
Date: Wed, 3 Feb 2021 09:36:51 +0000 (+0800)
Subject: drm/amdgpu: optimize list operation in amdgpu_xgmi
X-Git-Tag: baikal/aarch64/sdk6.1~7223^2~1^2~42
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=142d11fa9f3946e7d2ef383ff3bef6432420b112;p=kernel.git

drm/amdgpu: optimize list operation in amdgpu_xgmi

simplify the list operation.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index 541ef6be390f0..659b385b27b5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -324,7 +324,7 @@ static void amdgpu_xgmi_sysfs_rem_dev_info(struct amdgpu_device *adev,
 
 struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev)
 {
-	struct amdgpu_hive_info *hive = NULL, *tmp = NULL;
+	struct amdgpu_hive_info *hive = NULL;
 	int ret;
 
 	if (!adev->gmc.xgmi.hive_id)
@@ -337,11 +337,9 @@ struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev)
 
 	mutex_lock(&xgmi_mutex);
 
-	if (!list_empty(&xgmi_hive_list)) {
-		list_for_each_entry_safe(hive, tmp, &xgmi_hive_list, node)  {
-			if (hive->hive_id == adev->gmc.xgmi.hive_id)
-				goto pro_end;
-		}
+	list_for_each_entry(hive, &xgmi_hive_list, node)  {
+		if (hive->hive_id == adev->gmc.xgmi.hive_id)
+			goto pro_end;
 	}
 
 	hive = kzalloc(sizeof(*hive), GFP_KERNEL);