Thread (14 messages) flat view 14 messages, 2 authors, 2021-08-12
STALE1830d

[PATCH net-next 1/5] net: hns3: remove always exist devlink pointer check

From: Leon Romanovsky <leon@kernel.org>
Date: 2021-08-10 13:37:53
Also in: lkml
Subsystem: hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, networking drivers, the rest · Maintainers: Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Leon Romanovsky <leonro@nvidia.com>

The devlink pointer always exists after hclge_devlink_init() succeed.
Remove that check together with NULL setting after release and ensure
that devlink_register is last command prior to call to devlink_reload_enable().

Fixes: b741269b2759 ("net: hns3: add support for registering devlink for PF")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c    | 8 +-------
 .../net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c  | 8 +-------
 2 files changed, 2 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
index 448f29aa4e6b..e4aad695abcc 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.c
@@ -118,6 +118,7 @@ int hclge_devlink_init(struct hclge_dev *hdev)
 
 	priv = devlink_priv(devlink);
 	priv->hdev = hdev;
+	hdev->devlink = devlink;
 
 	ret = devlink_register(devlink);
 	if (ret) {
@@ -126,8 +127,6 @@ int hclge_devlink_init(struct hclge_dev *hdev)
 		goto out_reg_fail;
 	}
 
-	hdev->devlink = devlink;
-
 	devlink_reload_enable(devlink);
 
 	return 0;
@@ -141,14 +140,9 @@ void hclge_devlink_uninit(struct hclge_dev *hdev)
 {
 	struct devlink *devlink = hdev->devlink;
 
-	if (!devlink)
-		return;
-
 	devlink_reload_disable(devlink);
 
 	devlink_unregister(devlink);
 
 	devlink_free(devlink);
-
-	hdev->devlink = NULL;
 }
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
index 1e6061fb8ed4..f478770299c6 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c
@@ -120,6 +120,7 @@ int hclgevf_devlink_init(struct hclgevf_dev *hdev)
 
 	priv = devlink_priv(devlink);
 	priv->hdev = hdev;
+	hdev->devlink = devlink;
 
 	ret = devlink_register(devlink);
 	if (ret) {
@@ -128,8 +129,6 @@ int hclgevf_devlink_init(struct hclgevf_dev *hdev)
 		goto out_reg_fail;
 	}
 
-	hdev->devlink = devlink;
-
 	devlink_reload_enable(devlink);
 
 	return 0;
@@ -143,14 +142,9 @@ void hclgevf_devlink_uninit(struct hclgevf_dev *hdev)
 {
 	struct devlink *devlink = hdev->devlink;
 
-	if (!devlink)
-		return;
-
 	devlink_reload_disable(devlink);
 
 	devlink_unregister(devlink);
 
 	devlink_free(devlink);
-
-	hdev->devlink = NULL;
 }
-- 
2.31.1
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