[PATCH 07/14] header: debugfs.h: add DEFINE_DEBUGFS_ATTRIBUTE

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DEFINE_DEBUGFS_ATTRIBUTE and debugfs_create_file_unsafe() were
introduced in mainline commit c6468808149 ("debugfs: add support for
self-protecting attribute file fops"), but on older kernel versions
where we do not have this extra security in debugfs we can use the older
functions instead.

Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
 backport/backport-include/linux/debugfs.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/backport/backport-include/linux/debugfs.h b/backport/backport-include/linux/debugfs.h
index 11670388..fb50c4f5 100644
--- a/backport/backport-include/linux/debugfs.h
+++ b/backport/backport-include/linux/debugfs.h
@@ -53,4 +53,11 @@ debugfs_real_fops(const struct file *filp)
 #endif /* <4.9.0 but not >= 4.8.4, 4.7.10 */
+#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt) \
+	DEFINE_SIMPLE_ATTRIBUTE(__fops, __get, __set, __fmt)
+#define debugfs_create_file_unsafe(name, mode, parent, data, fops) \
+	debugfs_create_file(name, mode, parent, data, fops)
 #endif /* __BACKPORT_DEBUGFS_H_ */

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