linux-kernel - Re: [PATCH v10 2/4] arch: allocate vgetrandom

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Message-ID: <Y4crL0dqX7U4wnHH@zx2c4.com>
Date:   Wed, 30 Nov 2022 11:06:39 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        tglx@...utronix.de, linux-crypto@...r.kernel.org,
        linux-api@...r.kernel.org, x86@...nel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Adhemerval Zanella Netto <adhemerval.zanella@...aro.org>,
        Carlos O'Donell <carlos@...hat.com>,
        Florian Weimer <fweimer@...hat.com>,
        Arnd Bergmann <arnd@...db.de>,
        Christian Brauner <brauner@...nel.org>
Subject: Re: [PATCH v10 2/4] arch: allocate vgetrandom_alloc() syscall number

Hi Geert,

On Wed, Nov 30, 2022 at 09:56:06AM +0100, Geert Uytterhoeven wrote:
> Hi Jason,
> 
> On Tue, Nov 29, 2022 at 10:09 PM Jason A. Donenfeld <Jason@...c4.com> wrote:
> > Add vgetrandom_alloc() as syscall 451 (or 561 on alpha) by adding it to
> > all of the various syscall.tbl and unistd.h files.
> >
> > Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
> 
> Thanks for your patch!
> 
> What's the policy regarding adding syscall numbers for VDSO-related
> syscalls on architectures that do not support VDSOs yet?

I don't know exactly what the /policy/ is, but not wanting to rock the
boat, the first iterations of this series only added it to x86. But then
Arnd joined the thread and said I should add it to all of them all at
once and separate that out into this commit, so that's what we have
here. I think the idea is to keep syscall numbers synchronized these
days between archs if possible.

Jason