linux-kernel - [PATCH 1/3] kobject: introduce kobject_is

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Date:   Thu,  6 Apr 2023 17:30:54 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     xiang@...nel.org, chao@...nel.org, huyue2@...lpad.com,
        jefflexu@...ux.alibaba.com, damien.lemoal@...nsource.wdc.com,
        naohiro.aota@....com, jth@...nel.org, gregkh@...uxfoundation.org,
        rafael@...nel.org
Cc:     linux-erofs@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, Yangtao Li <frank.li@...o.com>
Subject: [PATCH 1/3] kobject: introduce kobject_is_added()

Add kobject_is_added() to avoid consumers from directly accessing
the internal variables of kobject.

Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 include/linux/kobject.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index bdab370a24f4..b5cdb0c58729 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -203,6 +203,11 @@ static inline const struct kobj_type *get_ktype(const struct kobject *kobj)
 	return kobj->ktype;
 }
 
+static inline int kobject_is_added(struct kobject *kobj)
+{
+	return kobj->state_in_sysfs;
+}
+
 extern struct kobject *kset_find_obj(struct kset *, const char *);
 
 /* The global /sys/kernel/ kobject for people to chain off of */
-- 
2.35.1