linux-kernel - Re: [PATCHv4 3/4] x86/tdx: Dynamically disable SEPT violations from causing #VEs

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Message-ID: <d8c924b5-d4f8-4a53-af8b-e393f64d036f@intel.com>
Date: Wed, 15 May 2024 06:53:17 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
 Nikolay Borisov <nik.borisov@...e.com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>,
 Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, x86@...nel.org,
 "H. Peter Anvin" <hpa@...or.com>, linux-coco@...ts.linux.dev,
 linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCHv4 3/4] x86/tdx: Dynamically disable SEPT violations from
 causing #VEs

On 5/15/24 02:30, Kirill A. Shutemov wrote:
>> nit: Perhaps this function can be put in the first patch and the description
>> there be made more generic, something along the lines of "introduce
>> functions for tdg_rd/tdg_wr" ?
> A static function without an user will generate a build warning. I don't
> think it is good idea.

OK, so stick a __maybe_unused on it when you define it and remove it on
first use.