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

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Message-Id: <1613986844-25539-1-git-send-email-yang.lee@linux.alibaba.com>
Date:   Mon, 22 Feb 2021 17:40:44 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     dan.j.williams@...el.com
Cc:     vishal.l.verma@...el.com, dave.jiang@...el.com,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org,
        Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH] device-dax: Switch to using the new API kobj_to_dev()

fixed the following coccicheck:
./drivers/dax/bus.c:486:60-61: WARNING opportunity for kobj_to_dev()
./drivers/dax/bus.c:1215:60-61: WARNING opportunity for kobj_to_dev()

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/dax/bus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 737b207..0e9207c 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -483,7 +483,7 @@ static ssize_t delete_store(struct device *dev, struct device_attribute *attr,
 static umode_t dax_region_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 dax_region *dax_region = dev_get_drvdata(dev);
 
 	if (is_static(dax_region))
@@ -1212,7 +1212,7 @@ static ssize_t numa_node_show(struct device *dev,
 
 static umode_t dev_dax_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 dev_dax *dev_dax = to_dev_dax(dev);
 	struct dax_region *dax_region = dev_dax->region;
 
-- 
1.8.3.1