linux-kernel - Re: [PATCH V3 09/26] csky: VDSO and rt

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Date:   Fri, 7 Sep 2018 11:07:25 +0800
From:   Guo Ren <ren_guo@...ky.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     linux-arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Jason Cooper <jason@...edaemon.net>,
        c-sky_gcc_upstream@...ky.com, gnu-csky@...tor.com,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        wbx@...ibc-ng.org, Greentime Hu <green.hu@...il.com>
Subject: Re: [PATCH V3 09/26] csky: VDSO and rt_sigreturn

On Thu, Sep 06, 2018 at 04:02:42PM +0200, Arnd Bergmann wrote:
> On Wed, Sep 5, 2018 at 2:08 PM Guo Ren <ren_guo@...ky.com> wrote:
> 
> > +
> > +       /*
> > +        * __NR_rt_sigreturn must be 173
> > +        * Because gcc/config/csky/linux-unwind.h use hard code to parse rt_sigframe.
> > +        */
> > +       err = setup_vdso_page(vdso->rt_signal_retcode);
> > +       if (err) panic("Cannot set signal return code, err: %x.", err);
> 
> __NR_rt_sigreturn is 139
Yes, we've changed to use asm-generic define, and I forgot to update the
comment.

 Guo Ren