linux-kernel - Re: [PATCH V9 08/21] csky: Process management and Signal

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Message-ID: <20181018023713.GC12027@guoren-Inspiron-7460>
Date:   Thu, 18 Oct 2018 10:37:15 +0800
From:   Guo Ren <ren_guo@...ky.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        David Miller <davem@...emloft.net>,
        gregkh <gregkh@...uxfoundation.org>,
        Christoph Hellwig <hch@...radead.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Rob Herring <robh@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>, c-sky_gcc_upstream@...ky.com
Subject: Re: [PATCH V9 08/21] csky: Process management and Signal

On Wed, Oct 17, 2018 at 05:11:00PM +0200, Arnd Bergmann wrote:
> On Tue, Oct 16, 2018 at 5:01 AM Guo Ren <ren_guo@...ky.com> wrote:
> >
> > This patch adds files related to task_switch, sigcontext, signal,
> > fpu context switch.
> >
> > Signed-off-by: Guo Ren <ren_guo@...ky.com>
> > Cc: Arnd Bergmann <arnd@...db.de>
> > ---
> > Changelog:
> >  - abiv2/fpu.c: Userspace should never be sent NSIGXXX as a si_code.
> >    Use FPE_FLTUNK instead.
> >  - abiv2/fpu.c: Use force_sig_fault instead.
> 
> I'm hesitant to provide a Reviewed-by: tag for this one, as I don't
> understand the signal handling enough myself, and it's something
> that should be reviewed properly because of the ABI implications.
> 
> Maybe someone else can have a closer look at this?
NSIGXXX and force_sig_fault modification is from Eric W. Biederman
in PATCH V6 and I forget add:
Cc: "Eric W. Biederman" <ebiederm@...ssion.com>

Best Regards
 Guo Ren