linux-kernel - Re: [tip: x86/urgent] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h

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Date:   Sat, 24 Aug 2019 21:13:53 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org,
        "x86@...nel.org" <x86@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>, stable@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Pavel Machek <pavel@....cz>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        Juergen Gross <jgross@...e.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, Chen Yu <yu.c.chen@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Tom Lendacky <thomas.lendacky@....com>
Subject: Re: [tip: x86/urgent] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD
 family 15h/16h

On Sat, Aug 24, 2019 at 09:50:28AM -0400, Sasha Levin wrote:
> Why is this being removed (along with supporting code)?

This was only a temporary bug in the new tip-bot which is fixed now. The
commit in tip is fine:

c49a0a80137c ("x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h")

-- 
Regards/Gruss,
    Boris.

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