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Date:   Tue, 3 Mar 2020 15:15:05 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Steven Rostedt <rostedt@goodmis.org>
Cc:     zzyiwei@google.com, mingo@redhat.com, elder@kernel.org,
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Subject: Re: [PATCH v4] gpu/trace: add a gpu total memory usage tracepoint
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On Tue, Mar 03, 2020 at 09:07:03AM -0500, Steven Rostedt wrote:
> 
> Greg,
> 
> You acked this patch before, did you want to ack it again, and I'll take it
> in my tree?

Sure, but where did my ack go?  What changed from previous versions???

Anyway, the patch seems sane enough to me:

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>