linux-kernel - Re: [PATCH V4 05/17] riscv: Fixup difference with defconfig

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Message-ID: <CAK8P3a1jZyVBW70K6_u3mvXYNowV4DTBxivKc2L=HbRK8SgRXg@mail.gmail.com>
Date:   Mon, 31 Jan 2022 13:48:58 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Guo Ren <guoren@...nel.org>, Palmer Dabbelt <palmer@...belt.com>,
        Arnd Bergmann <arnd@...db.de>,
        Anup Patel <anup@...infault.org>,
        gregkh <gregkh@...uxfoundation.org>,
        liush <liush@...winnertech.com>, Wei Fu <wefu@...hat.com>,
        Drew Fustini <drew@...gleboard.org>,
        Wang Junqiang <wangjunqiang@...as.ac.cn>,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-csky@...r.kernel.org,
        linux-s390 <linux-s390@...r.kernel.org>,
        sparclinux <sparclinux@...r.kernel.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Parisc List <linux-parisc@...r.kernel.org>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Guo Ren <guoren@...ux.alibaba.com>,
        Anup Patel <anup.patel@....com>
Subject: Re: [PATCH V4 05/17] riscv: Fixup difference with defconfig

On Mon, Jan 31, 2022 at 1:23 PM Christoph Hellwig <hch@...radead.org> wrote:
>
> On Sat, Jan 29, 2022 at 08:17:16PM +0800, guoren@...nel.org wrote:
> > From: Guo Ren <guoren@...ux.alibaba.com>
> >
> > Let's follow the origin patch's spirit:
> >
> > The only difference between rv32_defconfig and defconfig is that
> > rv32_defconfig has  CONFIG_ARCH_RV32I=y.
> >
> > This is helpful to compare rv64-compat-rv32 v.s. rv32-linux.
> >
> > Fixes: 1b937e8faa87ccfb ("RISC-V: Add separate defconfig for 32bit systems")
> > Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
> > Signed-off-by: Guo Ren <guoren@...nel.org>
>
> Wouldn't a common.config that generats both the 32-bit and 64-bit
> configs a better idea?

I thought that is what the patch does, there is already the normal 64-bit
defconfig, and the new makefile target makes this shared with 32-bit
to prevent them from diverging again.

        Arnd