linux-kernel - [PATCH] drivers/nvme/host: Use kobj_to

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Date:   Fri, 18 Jun 2021 07:10:58 -0700
From:   zhouchuangao <zhouchuangao@...o.com>
To:     Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...com>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     zhouchuangao <zhouchuangao@...o.com>
Subject: [PATCH] drivers/nvme/host: Use kobj_to_dev() API

Use kobj_to_dev() API instead of container_of().

Signed-off-by: zhouchuangao <zhouchuangao@...o.com>
---
 drivers/nvme/host/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 468d264..bec6965 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3195,7 +3195,7 @@ static struct attribute *nvme_ns_id_attrs[] = {
 static umode_t nvme_ns_id_attrs_are_visible(struct kobject *kobj,
 		struct attribute *a, int n)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct nvme_ns_ids *ids = &dev_to_ns_head(dev)->ids;
 
 	if (a == &dev_attr_uuid.attr) {
@@ -3467,7 +3467,7 @@ static struct attribute *nvme_dev_attrs[] = {
 static umode_t nvme_dev_attrs_are_visible(struct kobject *kobj,
 		struct attribute *a, int n)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct nvme_ctrl *ctrl = dev_get_drvdata(dev);
 
 	if (a == &dev_attr_delete_controller.attr && !ctrl->ops->delete_ctrl)
-- 
2.7.4