[PATCH] x86/setup: do not include kexec_handover.h from asm/setup.h

[Borislav Petkov]

On Wed, Jul 01, 2026 at 05:15:33PM +0200, Pratyush Yadav wrote:
> From: "Pratyush Yadav (Google)" <pratyush at kernel.org>
> 
> x86 asm/setup.h includes linux/kexec_handover.h. This is because it is
> used by setup.c and kaslr.c. But this inclusion is problematic. The
> header is included in many places, so it results in the KHO header being
> propagated there. Also, the setup header is used by realmode code. If
> KHO header includes things like mm.h, it causes a big dump of
> compliation failures.

This is exactly why we are trying hard to block people from using more linux/
namespace headers in the decompressor code. Please split it and put only the
bits that are needed by the decompressor into a header in
arch/x86/include/asm/shared/ and use that in the decompressor.

There are examples there.

Thx.

-- 
Regards/Gruss,
    Boris.

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