Re: arch/sh/kernel/relocate_kernel.S:38: Error: invalid operands for opcode

[Al Viro]

On Wed, Dec 20, 2023 at 01:44:19PM +0800, Baoquan He wrote:

> >    arch/sh/kernel/relocate_kernel.S: Assembler messages:
> > >> arch/sh/kernel/relocate_kernel.S:38: Error: invalid operands for opcode
> >    arch/sh/kernel/relocate_kernel.S:41: Error: invalid operands for opcode
> >    arch/sh/kernel/relocate_kernel.S:126: Error: invalid operands for opcode
> >    arch/sh/kernel/relocate_kernel.S:129: Error: invalid operands for opcode
> 
> I reproduced this error, haven't got why and a way to fix it, will come
> back later if I have fix.

At a guess - after that commit ARCH_SUPPORTS_CRASH_DUMP is enough to enable CRASH_DUMP,
which selects KEXEC_CORE regardless of ARCH_SUPPORTS_KEXEC.  And on sh you have
the former selected on any UP build, while the latter - only on MMU ones (i.e.
not SH2).