Re: [Xen-devel] [PATCH] xen/x86: Improve hypercall page writing

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Andrew Cooper [mailto:andrew.cooper3@xxxxxxxxxx]
> Sent: Tuesday, December 20, 2016 12:55 AM
> 
> Use memcpy() rather than individual writes with explicit casts.  The
> __builtin_memcpy() wrapper does a better job at combining adjacent writes into
> a larger word size.
> 
> This results in better generated assembly.  No functional change.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>

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