From b29103076bec8316e155e71309dc0fba499022c6 Mon Sep 17 00:00:00 2001
From: Nakajima Akira <nakajima.akira@nttcom.co.jp>
Date: Thu, 9 Apr 2015 17:27:39 +0900
Subject: [PATCH] Fix to convert SURROGATE PAIR

Garbled characters happen by using surrogate pair for filename.
  (replace each 1 character to ??)

[Steps to Reproduce for bug]
client# touch $(echo -e '\xf0\x9d\x9f\xa3')
client# touch $(echo -e '\xf0\x9d\x9f\xa4')
client# ls -li
  You see same inode number, same filename(=?? and ??) .

Fix the bug about these functions do not consider about surrogate pair (and IVS).
cifs_utf16_bytes()
cifs_mapchar()
cifs_from_utf16()
cifsConvertToUTF16()

Reported-by: Nakajima Akira <nakajima.akira@nttcom.co.jp>
Signed-off-by: Nakajima Akira <nakajima.akira@nttcom.co.jp>
Signed-off-by: Steve French <smfrench@gmail.com>
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Reading git-format-patch failed