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Date:   Wed, 15 Jun 2022 12:19:45 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc:     Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
        Sean Christopherson <seanjc@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Joerg Roedel <jroedel@suse.de>,
        Ard Biesheuvel <ardb@kernel.org>,
        Andi Kleen <ak@linux.intel.com>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@linux.intel.com>,
        David Rientjes <rientjes@google.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Tom Lendacky <thomas.lendacky@amd.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Ingo Molnar <mingo@redhat.com>,
        Varad Gautam <varad.gautam@suse.com>,
        Dario Faggioli <dfaggioli@suse.com>,
        Dave Hansen <dave.hansen@intel.com>,
        Mike Rapoport <rppt@kernel.org>,
        David Hildenbrand <david@redhat.com>,
        marcelo.cerri@canonical.com, tim.gardner@canonical.com,
        khalid.elmously@canonical.com, philip.cox@canonical.com,
        x86@kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev,
        linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCHv7 05/14] x86/boot: Add infrastructure required for
 unaccepted memory support
Message-ID: <YqmyQZa4CTHkH3gT@hirez.programming.kicks-ass.net>
References: <20220614120231.48165-1-kirill.shutemov@linux.intel.com>
 <20220614120231.48165-6-kirill.shutemov@linux.intel.com>
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In-Reply-To: <20220614120231.48165-6-kirill.shutemov@linux.intel.com>
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On Tue, Jun 14, 2022 at 03:02:22PM +0300, Kirill A. Shutemov wrote:
> Pull functionality from the main kernel headers and lib/ that is
> required for unaccepted memory support.
> 
> This is preparatory patch. The users for the functionality will come in
> following patches.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> ---
>  arch/x86/boot/bitops.h                   | 40 ++++++++++++
>  arch/x86/boot/compressed/align.h         | 14 +++++
>  arch/x86/boot/compressed/bitmap.c        | 43 +++++++++++++
>  arch/x86/boot/compressed/bitmap.h        | 49 +++++++++++++++
>  arch/x86/boot/compressed/bits.h          | 36 +++++++++++
>  arch/x86/boot/compressed/compiler.h      |  9 +++
>  arch/x86/boot/compressed/find.c          | 54 ++++++++++++++++
>  arch/x86/boot/compressed/find.h          | 80 ++++++++++++++++++++++++
>  arch/x86/boot/compressed/math.h          | 37 +++++++++++
>  arch/x86/boot/compressed/minmax.h        | 61 ++++++++++++++++++
>  arch/x86/boot/compressed/pgtable_types.h | 25 ++++++++

That's quite a lot of duplicated code; is there really no way so share
this?