linux-kernel - [PATCH 1/9] sysfs: add sysfs_remove_bin_file

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Date:   Wed,  6 Oct 2021 17:09:46 -0700
From:   Zev Weiss <zev@...ilderbeest.net>
To:     openbmc@...ts.ozlabs.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jeremy Kerr <jk@...econstruct.com.au>,
        Joel Stanley <joel@....id.au>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Zev Weiss <zev@...ilderbeest.net>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/9] sysfs: add sysfs_remove_bin_file_self() function

This is simply the bin_attribute analog to sysfs_remove_file_self().

Signed-off-by: Zev Weiss <zev@...ilderbeest.net>
---
 fs/sysfs/file.c       | 13 +++++++++++++
 include/linux/sysfs.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index d019d6ac6ad0..b2b85be95adf 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -572,6 +572,19 @@ void sysfs_remove_bin_file(struct kobject *kobj,
 }
 EXPORT_SYMBOL_GPL(sysfs_remove_bin_file);
 
+/**
+ * sysfs_remove_file_self - remove binary object attribute from its own method
+ * @kobj: object to operate on
+ * @attr: binary attribute descriptor
+ *
+ * See kernfs_remove_self() for details.
+ */
+bool sysfs_remove_bin_file_self(struct kobject *kobj, const struct bin_attribute *attr)
+{
+	return sysfs_remove_file_self(kobj, &attr->attr);
+}
+EXPORT_SYMBOL_GPL(sysfs_remove_bin_file_self);
+
 static int internal_change_owner(struct kernfs_node *kn, kuid_t kuid,
 				 kgid_t kgid)
 {
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index e3f1e8ac1f85..49de5189cf88 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -273,6 +273,7 @@ int __must_check sysfs_create_bin_file(struct kobject *kobj,
 				       const struct bin_attribute *attr);
 void sysfs_remove_bin_file(struct kobject *kobj,
 			   const struct bin_attribute *attr);
+bool sysfs_remove_bin_file_self(struct kobject *kobj, const struct bin_attribute *attr);
 
 int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target,
 				   const char *name);
-- 
2.33.0