Re: [PATCH 3/3] m68k: allow kexec on all MMU enabled CPUs

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Hi Greg,

On Fri, Aug 26, 2022 at 6:08 AM Greg Ungerer <gerg@xxxxxxxxxxxxxx> wrote:
The configuration setting for 68k kexec support limits it to only
the classic 68k CPU types (so no ColdFire). However the underlying
support can handle any 68k CPU that is MMU enabled - and that includes
ColdFire. (Of course that support is only as good as mentioned in
the current configuration help).

None of the no-MMU CPU types (classic or ColdFire) have support for
kexec yet, so the configuration as it stands is not quite right, and
it will fail to compile on them.

Signed-off-by: Greg Ungerer <gerg@xxxxxxxxxxxxxx>

Thanks for your patch!

--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -87,7 +87,7 @@ config MMU_SUN3

 config KEXEC
        bool "kexec system call"
-       depends on M68KCLASSIC
+       depends on MMU
        select KEXEC_CORE
        help
          kexec is a system call that implements the ability to shutdown your

Don't you need changes to arch/m68k/kernel/relocate_kernel.S,
which supports 68020+ only?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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



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