From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: [PATCH 01/22] Revert "afs: Move UUID struct to linux/uuid.h"
Date: Wed, 31 May 2017 11:41:57 +0200
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To: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: linux-raid-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>, linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org, Mimi Zohar <zohar-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>, Amir Goldstein <amir73il-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Steven Whitehouse <swhiteho-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-block-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andy Shevchenko <andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>, Shaohua Li <shli-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
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On Tue, May 30, 2017 at 11:00:04AM +0100, David Howells wrote:
> This isn't going to work.  You've effectively changed the types of the fields
> in the UUID struct from BE to CPU-endian, but you're still calling
> generate_random_uuid(), which produces a BE UUID.  You need to leave the
> struct members as __beXX or stop using the core UUID routines.
> 
> Just move the struct uuid_v1 as-is to the afs headers and rename it to struct
> afs_uuid.  You can then leave the (un)marshalling code alone.

That's one option.  The other option would be to revert

"afs: Use core kernel UUID generation", as that also changed the
v1 UUID to a v4 uuid.  Does the afs protocol require a v1 uuid
or does it just use the formwat on the wire?