From c5de619ea4ec388a580426d9bbd5e29fed5cd0b3 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Tue, 2 May 2017 13:35:20 -0500
Subject: [PATCH] Set unicode flag on cifs echo request to avoid Mac error

commit 26c9cb668c7fbf9830516b75d8bee70b699ed449 upstream.

Mac requires the unicode flag to be set for cifs, even for the smb
echo request (which doesn't have strings).

Without this Mac rejects the periodic echo requests (when mounting
with cifs) that we use to check if server is down

Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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