linux-kernel - Re: [PATCH] x86/mce: Fix initialization error warning

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Message-ID: <20170117090814.o6ur3d5dbeyqlqds@pd.tnic>
Date:   Tue, 17 Jan 2017 10:08:14 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Prarit Bhargava <prarit@...hat.com>, linux-kernel@...r.kernel.org,
        Tony Luck <tony.luck@...el.com>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        linux-edac@...r.kernel.org
Subject: Re: [PATCH] x86/mce: Fix initialization error warning

On Tue, Jan 17, 2017 at 09:34:18AM +0100, Thomas Gleixner wrote:
> That's one thing, but OTOH we really can avoid the KERN_ERR level print out
> for the case where mce is not available (for whatever reasons: HW / Virt /
> command line ....).
> 
> The simple 2 liner I posted earlier in this thread does it nicely.

Well, I seem to remember at the time of this:

  9c15a24b038f ("x86/mce: Improve mcheck_init_device() error handling")

that I requested to have that error message there so that we *know* when
that function fails instead of trying to decipher "Hey, mcelog doesn't
start here" and wonder why.

But we can kill it just as well, especially as there's patch deprecating
/dev/mcelog floating around. We can reorg error messages in that
function later, if deemed necessary.

So sure.

-- 
Regards/Gruss,
    Boris.

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