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

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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>
This commit is contained in:
Dongsheng Yang 2015-12-22 09:22:01 +08:00 committed by Richard Weinberger
parent 34b89df903
commit 170eb55f7d
1 changed files with 6 additions and 0 deletions
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6
fs/ubifs/key.h
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@ -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__