linux-kernel - [PATCH] debugfs: add definition of debugfs_real_fops() if CONFIG_DEBUG

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Message-Id: <20171127185134.13405-1-jakub.kicinski@netronome.com>
Date:   Mon, 27 Nov 2017 10:51:34 -0800
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Nicolai Stange <nicstange@...il.com>
Cc:     linux-kernel@...r.kernel.org, oss-drivers@...ronome.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH] debugfs: add definition of debugfs_real_fops() if CONFIG_DEBUG_FS unset

Recent commit moved the implementation of debugfs_real_fops()
out of the header file.  The declaration, however, is only
provided if CONFIG_DEBUG_FS is set.  Add an empty static inline
definition for when CONFIG_DEBUG_FS is unset.

Fixes: 7c8d469877b1 ("debugfs: add support for more elaborate ->d_fsdata")
Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@...ronome.com>
---
 include/linux/debugfs.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index f36ecc2a5712..b1dc23cc0214 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -216,6 +216,11 @@ static inline void debugfs_remove(struct dentry *dentry)
 static inline void debugfs_remove_recursive(struct dentry *dentry)
 { }
 
+const struct file_operations *debugfs_real_fops(const struct file *filp)
+{
+	return NULL;
+}
+
 static inline int debugfs_file_get(struct dentry *dentry)
 {
 	return 0;
-- 
2.14.1