linux-kernel - [PATCH] nvme: Switch to using the new API kobj_to

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Message-Id: <1614850889-68174-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Thu,  4 Mar 2021 17:41:29 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     kbusch@...nel.org
Cc:     axboe@...com, hch@....de, sagi@...mberg.me,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] nvme: Switch to using the new API kobj_to_dev()

Fix the following coccicheck warnings:

./drivers/nvme/host/core.c:3714:60-61: WARNING opportunity for
kobj_to_dev().

./drivers/nvme/host/core.c:3475:60-61: WARNING opportunity for
kobj_to_dev().

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.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 e68a8c4..89e013b 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3472,7 +3472,7 @@ static ssize_t nsid_show(struct device *dev, struct device_attribute *attr,
 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) {
@@ -3711,7 +3711,7 @@ static DEVICE_ATTR(reconnect_delay, S_IRUGO | S_IWUSR,
 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)
-- 
1.8.3.1