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

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Date:   Tue,  2 Mar 2021 17:55:44 +0800
From:   Jiapeng Chong <jiapeng.chong@...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,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] dax-device: Switch to using the new API kobj_to_dev()

Fix the following coccicheck warnings:

./drivers/dax/bus.c:489:60-61: WARNING opportunity for kobj_to_dev().
./drivers/dax/bus.c:1218:60-61: 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/dax/bus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 452e85a..37d7cc6 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -486,7 +486,7 @@ 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))
@@ -1215,7 +1215,7 @@ 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