[PATCH 02/13] riscv: Fixup difference with defconfig

[Guo Ren]

On Wed, Dec 22, 2021 at 8:51 PM Arnd Bergmann <arnd at arndb.de> wrote:
>
> On Wed, Dec 22, 2021 at 12:34 PM Guo Ren <guoren at kernel.org> wrote:
> > On Wed, Dec 22, 2021 at 1:09 AM Arnd Bergmann <arnd at arndb.de> wrote:
> > > On Tue, Dec 21, 2021 at 5:35 PM <guoren at kernel.org> wrote:
> > > If the intention is to keep them in sync, maybe use a fragment for 32-bit
> > > mode, like powerpc or mips do.
> >
> > Some people are familiar with "make rv32_defconfig". There has a
> > 32-bit.config fragment config in arch/riscv/configs/.
> >
> > I've tested with:
> >
> > make ARCH=riscv CROSS_COMPILE=riscv32-buildroot-linux-gnu-
> > EXTRA_CFLAGS+=-g O=../build-rv32/ defconfig 32-bit.config
> >
> > The above is tested Okay, do you mean we should delete rv32_defconfig?
> > I think it's another topic, I just want them the same in "compat"
> > patchset.
>
> I think what you can do is to add rv32_defconfig as a target in
> arch/riscv/Makefile the same way as rv32_randconfig, and then
> delete the other file, that will keep the existing process working
> for any existing users.
Good idea, I would try.

>
> Given that there are no specific rv32 SoC implementations supported
> by the kernel today (other than SOC_VIRT), the number of users
> would be close to zero anyway.
I really agree with you, but we still need the rv32 user mode
ecosystem for memory footprint.

>
>        Arnd



-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/