gcc trunk fails to build kernel on PowerPC64 due to oprofile warnings

[Robert Richter]

On 26.01.17 10:46:43, William Cohen wrote:
> From 7e46dbd7dc5bc941926a4a63c28ccebf46493e8d Mon Sep 17 00:00:00 2001
> From: William Cohen <wcohen at redhat.com>
> Date: Thu, 26 Jan 2017 10:33:59 -0500
> Subject: [PATCH] Avoid hypthetical string truncation in oprofile stats buffer
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> Increased the size of an internal oprofile driver buffer ensuring that
> the string was never truncated for any possible int value to avoid the
> following gcc-7 compiler error on ppc when building the kernel:

Please test gcc7 for other archs first. I don't think this is the only
change needed to avoid this warning in oprofile code.

Thanks,

-Robert