linux-kernel - Re: [PATCH V12 07/24] LoongArch: Add build infrastructure

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Message-ID: <CAK8P3a3j1h2h_yWN7oaBPx7Z-WaJs-rMupWo3Q4UUTAi2m3tqQ@mail.gmail.com>
Date:   Wed, 1 Jun 2022 18:02:05 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Huacai Chen <chenhuacai@...ngson.cn>,
        Arnd Bergmann <arnd@...db.de>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Airlie <airlied@...ux.ie>,
        Jonathan Corbet <corbet@....net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-arch@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>,
        Yanteng Si <siyanteng@...ngson.cn>,
        Huacai Chen <chenhuacai@...il.com>,
        Guo Ren <guoren@...nel.org>, Xuerui Wang <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        WANG Xuerui <git@...0n.name>
Subject: Re: [PATCH V12 07/24] LoongArch: Add build infrastructure

On Wed, Jun 1, 2022 at 5:47 PM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> Hi--
>
> On 6/1/22 02:59, Huacai Chen wrote:
> > +config 32BIT
> > +     bool
> > +
> > +config 64BIT
> > +     def_bool y
> > +
>
> I don't see a way to set (enable) 32BIT.
> Please explain how to do that.

It can't be enabled at the moment, but support is planned for a future release.
There are remnants of the 32-bit support in various places of the codebase,
but removing those just to add them back later does not seem too important.

         Arnd