linux-kernel - Re: [PATCH v4 16/16] x86/mtrr: simplify mtrr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <Y2Du0udSWan1VLxe@zn.tnic>
Date:   Tue, 1 Nov 2022 11:02:58 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Juergen Gross <jgross@...e.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v4 16/16] x86/mtrr: simplify mtrr_ops initialization

On Tue, Nov 01, 2022 at 10:48:10AM +0100, Juergen Gross wrote:
> Hmm, with the cpu_feature_enabled() implementation it should be quite
> obvious that this is all dead code.

Yes it is. I ran ~100 randconfigs with both gcc and clang and not a
single one failed the build so I guess you can say in the commit message
that it is ok for this symbol to be not present on 64-bit as it will be
eliminated anyway.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette