Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) client-ip=2620:137:e000::3:3;
Date:   Thu, 23 Nov 2023 17:11:13 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To:     Jeremi Piotrowski <jpiotrowski@linux.microsoft.com>
Cc:     linux-kernel@vger.kernel.org, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
        Michael Kelley <mhkelley58@gmail.com>,
        Nikolay Borisov <nik.borisov@suse.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Tom Lendacky <thomas.lendacky@amd.com>, x86@kernel.org,
        Dexuan Cui <decui@microsoft.com>, linux-hyperv@vger.kernel.org,
        stefan.bader@canonical.com, tim.gardner@canonical.com,
        roxana.nicolescu@canonical.com, cascardo@canonical.com,
        kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org,
        sashal@kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH v1 3/3] x86/tdx: Provide stub tdx_accept_memory() for
 non-TDX configs
Message-ID: <20231123141113.l3kwputphhj3hxub@box.shutemov.name>
References: <20231122170106.270266-1-jpiotrowski@linux.microsoft.com>
 <20231122170106.270266-3-jpiotrowski@linux.microsoft.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20231122170106.270266-3-jpiotrowski@linux.microsoft.com>
Precedence: bulk

On Wed, Nov 22, 2023 at 06:01:06PM +0100, Jeremi Piotrowski wrote:
> When CONFIG_INTEL_TDX_GUEST is not defined but CONFIG_UNACCEPTED_MEMORY=y is,
> the kernel fails to link with an undefined reference to tdx_accept_memory from
> arch_accept_memory. Provide a stub for tdx_accept_memory to fix the build for
> that configuration.
> 
> CONFIG_UNACCEPTED_MEMORY is also selected by CONFIG_AMD_MEM_ENCRYPT, and there
> are stubs for snp_accept_memory for when it is not defined. Previously this did
> not result in an error when CONFIG_INTEL_TDX_GUEST was not defined because the
> branch that references tdx_accept_memory() was being discarded due to
> DISABLE_TDX_GUEST being set.

And who unsets it now?

-- 
  Kiryl Shutsemau / Kirill A. Shutemov