linux-kernel - [PATCH] nvdimm: Use kobj_to

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Message-Id: <1601103260-10249-1-git-send-email-wangqing@vivo.com>
Date:   Sat, 26 Sep 2020 14:54:17 +0800
From:   Wang Qing <wangqing@...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>, linux-nvdimm@...ts.01.org,
        linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] nvdimm: Use kobj_to_dev() API

Use kobj_to_dev() instead of container_of().

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/nvdimm/namespace_devs.c | 2 +-
 drivers/nvdimm/region_devs.c    | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 6da67f4..1d11ca7
--- 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 ef23119..92adfaf
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -644,7 +644,7 @@ static struct attribute *nd_region_attributes[] = {
 
 static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
 {
-	struct device *dev = container_of(kobj, typeof(*dev), kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct nd_region *nd_region = to_nd_region(dev);
 	struct nd_interleave_set *nd_set = nd_region->nd_set;
 	int type = nd_region_to_nstype(nd_region);
@@ -759,7 +759,7 @@ 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