Re: [PATCH 4.4 50/53] ntb_transport: fix qp count bug

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On Mon, 2017-08-28 at 10:05 +0200, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Logan Gunthorpe <logang@xxxxxxxxxxxx>
> 
> commit cb827ee6ccc3e480f0d9c0e8e53eef55be5b0414 upstream.
> 
> In cases where there are more mw's than spads/2-2, the mw count gets
> reduced to match the limitation.
[...]

In 4.4-stable, it doesn't, so this patch doesn't fix anything.  It looks
like 4.4 would need a backport of:

commit b17faba03fc72091f4d040b879def004316952ec
Author: Shyam Sundar S K <ssundark@xxxxxxx>
Date:   Wed Dec 7 22:37:05 2016 +0530

    ntb_transport: Limit memory windows based on available, scratchpads

Ben.

-- 
Ben Hutchings
Software Developer, Codethink Ltd.





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