Re: [PATCH] sh: mm: Remove checks for nonexistent CONFIG_CPU_SUBTYPE_ST40

Hi Ethan,

Thanks for your patch!

On Sat, 13 Jun 2026 at 23:05, Ethan Nelson-Moore <[email protected]> wrote:
> The CONFIG_CPU_SUBTYPE_ST40 option was removed in commit f96691872439
> ("sh: Kill off the remaining ST40 cruft."), but a check for it remained

s/remained/was added later/

The ST40-removal predates commit d02b08f6e8b184ff ("sh: Clean up places
that make 29-bit physical assumptions."), which introduced the check.

> in arch/sh/include/cpu-sh4/cpu/mmu_context.h. Remove this dead code.
> Also remove the definition of and references to the MMUCR_SE bit mask,
> because it is defined as zero on all CPUs other than ST40.
>
> Discovered while searching for CONFIG_* symbols referenced in code but
> not defined in any Kconfig file.
>
> Signed-off-by: Ethan Nelson-Moore <[email protected]>

Reviewed-by: Geert Uytterhoeven <[email protected]>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds