Re: [PATCH] riscv: process: Use str_supported_unsupported() in compat_mode_detect()

[Thorsten Blum <blum@kernel.org>]

On Tue, Sep 29, 2026 at 11:11:55AM +0200, Geert Uytterhoeven wrote:
> Hi Paul, Thorsten,
> 
> On Sat, 26 Sept 2026 at 01:48, Paul Walmsley <pjw@kernel.org> wrote:
> > On Thu, 24 Sep 2026, Thorsten Blum wrote:
> > > Replace hard-coded strings with the str_supported_unsupported() helper.
> > > This unifies the output and helps the linker with deduplication, which
> > > can result in a smaller binary.
> > >
> > > Signed-off-by: Thorsten Blum <blum@kernel.org>
> >
> > Thanks, queued for v7.4.
> 
> Thanks for your patch, which is now commit a06776565b9e7351 ("riscv:
> process: Use str_supported_unsupported() in compat_mode_detect()")
> in riscv/for-next.
> 
> This fails to build:
> 
>     arch/riscv/kernel/process.c: In function ‘compat_mode_detect’:
>     arch/riscv/kernel/process.c:138:17: error: implicit declaration of
> function ‘str_supported_unsupported’
> [-Werror=implicit-function-declaration]
>       138 |                 str_supported_unsupported(compat_mode_supported));
>           |                 ^~~~~~~~~~~~~~~~~~~~~~~~~
> 
> as it has a hard dependency on commit 5383cf280ef4f00b
> ("lib/string_choices: Add str_supported_unsupported()
> helper"), which is only present in the for-next branch of
> https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git.

Hi Geert,

It's also in linux-next:

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=5383cf280ef4f00b15f1d9e2a2886d0d02c0118b

Thanks,
Thorsten