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Set unicode flag on cifs echo request to avoid Mac error

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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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steve French
2017-05-02 13:35:20 -05:00
committed by Greg Kroah-Hartman
parent 4f5e1c48e8
commit 2ac2ad9fb0
1 changed files with 3 additions and 0 deletions
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fs/cifs/cifssmb.c
+3
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@@ -717,6 +717,9 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
if (rc)
return rc;
if (server->capabilities & CAP_UNICODE)
smb->hdr.Flags2 |= SMBFLG2_UNICODE;
/* set up echo request */
smb->hdr.Tid = 0xffff;
smb->hdr.WordCount = 1;