linux-kernel - [PATCH] drivers/nvdimm: Use kobj_to

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Date:   Fri, 18 Jun 2021 07:04:29 -0700
From:   zhouchuangao <zhouchuangao@...o.com>
To:     Dan Williams <dan.j.williams@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ira Weiny <ira.weiny@...el.com>, nvdimm@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Cc:     zhouchuangao <zhouchuangao@...o.com>
Subject: [PATCH] drivers/nvdimm: Use kobj_to_dev() API

Use kobj_to_dev() API instead of container_of().

Signed-off-by: zhouchuangao <zhouchuangao@...o.com>
---
 drivers/nvdimm/namespace_devs.c | 2 +-
 drivers/nvdimm/region_devs.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 2403b71..c74dcd2 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1623,7 +1623,7 @@ static struct attribute *nd_namespace_attributes[] = {
 static umode_t namespace_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);
 
 	if (a == &dev_attr_resource.attr && is_namespace_blk(dev))
 		return 0;
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 9ccf3d6..3db3195 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -766,7 +766,7 @@ REGION_MAPPING(31);
 
 static umode_t mapping_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 nd_region *nd_region = to_nd_region(dev);
 
 	if (n < nd_region->ndr_mappings)
-- 
2.7.4