linux-kernel - Re: [PATCH] vexpress/spc: fix a build warning on array bounds

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Date:	Sun, 31 Aug 2014 10:23:46 -0700
From:	Olof Johansson <olof@...om.net>
To:	Pawel Moll <pawel.moll@....com>
Cc:	Alex Shi <alex.shi@...aro.org>, arm@...nel.org,
	Sudeep Holla <Sudeep.Holla@....com>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"nico@...aro.org" <nico@...aro.org>,
	"viresh.kumar@...aro.org" <viresh.kumar@...aro.org>,
	"rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"mark.brown@...aro.org" <mark.brown@...aro.org>,
	"tixy@...aro.org" <tixy@...aro.org>
Subject: Re: [PATCH] vexpress/spc: fix a build warning on array bounds

On Thu, Aug 28, 2014 at 09:00:59PM -0700, Pawel Moll wrote:
> On pi??, 2014-08-29 at 02:45 +0100, Alex Shi wrote:
> > On 07/16/2014 07:28 PM, Sudeep Holla wrote:
> > > 
> > > 
> > > On 16/07/14 12:21, Alex Shi wrote:
> > >> With ARCH_VEXPRESS_SPC option, kernel build has the following
> > >> warning:
> > >>
> > >> arch/arm/mach-vexpress/spc.c: In function ???ve_spc_clk_init???:
> > >> arch/arm/mach-vexpress/spc.c:431:38: warning: array subscript is below
> > >> array bounds [-Warray-bounds]
> > >>    struct ve_spc_opp *opps = info->opps[cluster];
> > >>                                        ^
> > >> since 'cluster' maybe '-1' in UP system. This patch does a active
> > >> checking to fix this issue.
> > >>
> > > 
> > > Good catch, looks fine to me.
> > > 
> > > Acked-by: Sudeep Holla <sudeep.holla@....com>
> > 
> > Anyone like to pick up this build warning fix? Or comments are appreciated!
> 
> My fault, sorry, forgot about it...
> 
> Acked-by: Pawel Moll <pawel.moll@....com>
> 
> Arnd, Olof, could you please queue it as a fix? Happy to push a branch
> if you wish.

Applied. In the future, please feel free to just resend the patch
with the acked-bys added, no need to send a pull request for a single
patch. It's slightly more convenient to get a fresh copy of the patch
into arm@...nel.org folders, since now I had to go hunt it down on the
list it was originally posted.


-Olof
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