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Sender: Robert Richter <rric.net@gmail.com>
Date: Thu, 26 Jan 2017 17:06:25 +0100
From: Robert Richter <rric@kernel.org>
To: William Cohen <wcohen@redhat.com>
Cc: Anton Blanchard <anton@samba.org>, Michael Ellerman <mpe@ellerman.id.au>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Paul Mackerras <paulus@samba.org>, oprofile-list@lists.sf.net,
 linuxppc-dev@lists.ozlabs.org
Subject: Re: gcc trunk fails to build kernel on PowerPC64 due to oprofile
 warnings
Message-ID: <20170126160512.GE4906@rric.localdomain>
References: <20170126100044.7e439f72@kryten>
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On 26.01.17 10:46:43, William Cohen wrote:
> From 7e46dbd7dc5bc941926a4a63c28ccebf46493e8d Mon Sep 17 00:00:00 2001
> From: William Cohen <wcohen@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
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> 
> 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