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Date:   Thu, 16 May 2019 09:48:37 +0200 (CEST)
From:   Jiri Kosina <>
To:     Geert Uytterhoeven <>
cc:     Josh Poimboeuf <>,
        Thomas Gleixner <>,
        Ingo Molnar <>,
        Peter Zijlstra <>,
        Greg Kroah-Hartman <>,
        Ben Hutchings <>,,
Subject: Re: [PATCH] cpu/speculation: Warn on unsupported mitigations=

On Thu, 16 May 2019, Geert Uytterhoeven wrote:

> Currently, if the user specifies an unsupported mitigation strategy on
> the kernel command line, it will be ignored silently.  The code will
> fall back to the default strategy, possibly leaving the system more
> vulnerable than expected.

Honestly, I am not convinced. We are not doing this for vast majority of 
other cmdline options either, if for any at all.


Jiri Kosina

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