linux-kernel - Re: [PATCH] ahci: qoriq: fixed using uninitialized variable warnings

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Message-ID: <20150914040456.GA21102@wfg-t540p.sh.intel.com>
Date:	Mon, 14 Sep 2015 12:04:56 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Yuantian Tang <Yuantian.Tang@...escale.com>
Cc:	Tejun Heo <tj@...nel.org>,
	"hdegoede@...hat.com" <hdegoede@...hat.com>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH] ahci: qoriq: fixed using uninitialized variable warnings

Yuantian,

It's cross compiling on ARCH=openrisc.

Thanks,
Fengguang

On Mon, Sep 14, 2015 at 03:02:27AM +0000, Yuantian Tang wrote:
> Hello Tejun,
> 
> The toolchain I used is:
> gcc version 4.8.3 20140401 (prerelease) (Linaro GCC 4.8-2014.04)
> 
> I have not found this warning using this tool chain with -Wuninitialized flag.
> 
> Regards,
> Yuantian 
> 
> > -----Original Message-----
> > From: Tejun Heo [mailto:htejun@...il.com] On Behalf Of Tejun Heo
> > Sent: Friday, September 11, 2015 9:55 PM
> > To: Tang Yuantian-B29983 <Yuantian.Tang@...escale.com>
> > Cc: hdegoede@...hat.com; linux-ide@...r.kernel.org; linux-
> > kernel@...r.kernel.org; devicetree@...r.kernel.org; Fengguang Wu
> > <fengguang.wu@...el.com>
> > Subject: Re: [PATCH] ahci: qoriq: fixed using uninitialized variable warnings
> > 
> > Hello, Yuantian.
> > 
> > On Fri, Sep 11, 2015 at 05:27:25AM +0000, Yuantian Tang wrote:
> > > Hi Tejun,
> > >
> > > Could you please take the version 1 patch?
> > > The version 2 patch can't address these warnings, and the version 1 can
> > definitely remove them.
> > > In this case, that would cause any hidden bugs, so no worries.
> > 
> > Ugh... I really hate changes which are made to just work around compiler
> > silliness.  If this is something which goes away with newer gcc, Fengguang can
> > just make it as a known false positive.  Yuantian, which compiler are you
> > using?
> > 
> > Thanks.
> > 
> > --
> > tejun
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