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UBIFS: add a comment in key.h for unused parameter

Add a comment in key.h to explain why we keep an unused
parameter in key helpers.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Dongsheng Yang 9 년 전
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1개의 변경된 파일6개의 추가작업 그리고 0개의 파일을 삭제
  1. 6 0
      fs/ubifs/key.h

+ 6 - 0
fs/ubifs/key.h

@@ -34,6 +34,12 @@
  * node. We use "r5" hash borrowed from reiserfs.
  */
 
+/*
+ * Lot's of the key helpers require a struct ubifs_info *c as the first parameter.
+ * But we are not using it at all currently. That's designed for future extensions of
+ * different c->key_format. But right now, there is only one key type, UBIFS_SIMPLE_KEY_FMT.
+ */
+
 #ifndef __UBIFS_KEY_H__
 #define __UBIFS_KEY_H__