linux-kernel - Re: linux-4.20-rc1/arch/arm/vfp/vfpmodule.c:576: possible cut'n'paste error

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 6 Nov 2018 16:39:59 +0000
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Julien Thierry <julien.thierry@....com>
Cc:     David Binderman <dcb314@...mail.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: linux-4.20-rc1/arch/arm/vfp/vfpmodule.c:576: possible
 cut'n'paste error

On Tue, Nov 06, 2018 at 04:29:54PM +0000, Julien Thierry wrote:
> Hi Russel, David,
> 
> On 06/11/18 16:20, Russell King - ARM Linux wrote:
> >On Mon, Nov 05, 2018 at 01:53:13PM +0000, David Binderman wrote:
> >>Hello there,
> >>
> >>2nd try. Plain text might help.
> >
> >Yep, Linux kernel development generally doesn't like wasteful html
> >emails, sorry.
> >
> >>linux-4.20-rc1/arch/arm/vfp/vfpmodule.c:576]: (warning) Redundant assignment of 'ufp_exc->fpinst2' to itself.
> >>
> >>Source code is
> >>
> >>        ufp_exc->fpexc = hwstate->fpexc;
> >>        ufp_exc->fpinst = hwstate->fpinst;
> >>        ufp_exc->fpinst2 = ufp_exc->fpinst2;
> >
> >Thanks for the report - it most certainly is a bug introduced by
> >Julien's patches, but I don't get your warning here.  Which compiler
> >produces that warning?
> >
> 
> Hmmm, silly typo/copy-paste from my end. Last line should be:
> 
> 	ufp_exc->fpinst2 = hwstate->fpinst2;
> 
> Sorry about that.
> 
> >Julien - unfortunately, I've just asked Linus to take another fix
> >for Spectre, so we're going to have to wait a bit before I can
> >submit something for this.
> >
> 
> It is just a one line fix, should I submit a patch to the LAKML or patch
> system?

Both I guess.

> Otherwise let me know when is it best for you to receive the fix then to
> send to Linus.

As mentioned, I'll have to wait a while, it's not fair to send a pull
request for one patch followed immediately by another pull request for
another patch on top of the same pull request.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up