linux-kernel - Re: [PATCH 3/6] M68K: cpuinfo: Fix a warning for CONFIG_CPUMASK

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Message-ID: <CAAhV-H43QWXdaQuKvk+=BXA7LA6_p1aJb0qyXdhPhR_so_S0dA@mail.gmail.com>
Date:   Thu, 14 Jul 2022 15:39:13 +0800
From:   Huacai Chen <chenhuacai@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     WANG Xuerui <kernel@...0n.name>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Michal Simek <monstr@...str.eu>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>, Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        loongarch@...ts.linux.dev, Linux-Arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Guo Ren <guoren@...nel.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        linux-um <linux-um@...ts.infradead.org>,
        stable <stable@...r.kernel.org>
Subject: Re: [PATCH 3/6] M68K: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

Hi, Arnd,

On Thu, Jul 14, 2022 at 2:59 PM Arnd Bergmann <arnd@...db.de> wrote:
>
> On Thu, Jul 14, 2022 at 4:07 AM Huacai Chen <chenhuacai@...il.com> wrote:
> > On Tue, Jul 12, 2022 at 6:15 PM WANG Xuerui <kernel@...0n.name> wrote:
> > > On 2022/7/12 17:13, Geert Uytterhoeven wrote:
> > >
> > > But judging from the intent of this patch series (fixing WARNs on
> > > certain configs), and that the triggering condition is currently
> > > impossible on m68k (and other non-SMP) platforms, I think cleanups for
> > > such arches could come as a separate patch series later. I think the
> > > m68k refactoring is reasonable after all, due to my observation above,
> > > but for the other non-SMP arches we may want to wait for the respective
> > > maintainers' opinions.
> >
> > It seems that the best solution is only fix architectures with SMP
> > support and leave others (m68k, microblaze, um) as is. :)
>
> I think it probably makes sense to do this as a combined cleanup patch,
> which I can merge through the asm-generic tree, for all architectures
> whose maintainer does not pick it up directly. For SMP architectures,
> it's a bugfix that we probably want backported into stable kernels, while
> for non-SMP targets it is just a minor cleanup for consistency.
OK, I will send V2 later.

Huacai
>
>         Arnd