On Mon, 8 Aug 2016, Peter Zijlstra wrote:

> > > The caller expects %rdi to remain intact, push+pop it make that happen.
> > 
> > Indeed. Applied,
> 
> See also:
> 
>   lkml.kernel.org/r/[email protected]

Ville's patch is the proper thing to do; I still think the comments 
probably should be removed as they might provide more confusion than help, 
but that's a separate discussion.

Thanks,

-- 
Jiri Kosina
SUSE Labs

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