linux-kernel - Re: [PATCH 2/2] arm64/mm: show TAINT_CPU_OUT_OF_SPEC warning if the cache size is over the spec.

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Date:   Tue, 11 Jun 2019 12:18:29 -0400
From:   Masayoshi Mizuma <msys.mizuma@...il.com>
To:     Catalin Marinas <catalin.marinas@....com>
Cc:     Will Deacon <will.deacon@....com>,
        linux-arm-kernel@...ts.infradead.org,
        Masayoshi Mizuma <m.mizuma@...fujitsu.com>,
        linux-kernel@...r.kernel.org,
        Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
        Zhang Lei <zhang.lei@...fujitsu.com>
Subject: Re: [PATCH 2/2] arm64/mm: show TAINT_CPU_OUT_OF_SPEC warning if the
 cache size is over the spec.

On Tue, Jun 11, 2019 at 04:41:06PM +0100, Catalin Marinas wrote:
> On Tue, Jun 11, 2019 at 11:17:31AM -0400, Masayoshi Mizuma wrote:
> > From: Masayoshi Mizuma <m.mizuma@...fujitsu.com>
> > 
> > Show the warning and taints as TAINT_CPU_OUT_OF_SPEC if the cache line
> > size is greater than the maximum.
> 
> In general the "out of spec" part is a misnomer, we tend to apply it to
> CPU features that are not supported by the kernel rather than some CPU
> feature not compliant with the architecture (we call the latter errata).
> 
> I suggest you drop this patch.

Thank you for your comments. I agree with you, so I drop this
patch.

Thanks,
Masa