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Message-ID: <20180727220833.GA30752@agluck-desk>
Date: Fri, 27 Jul 2018 15:08:34 -0700
From: "Luck, Tony" <tony.luck@...el.com>
To: Yazen Ghannam <Yazen.Ghannam@....com>
Cc: linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
bp@...e.de, x86@...nel.org
Subject: Re: [PATCH] x86/mce: Handle varying MCA bank counts
On Fri, Jul 27, 2018 at 04:40:09PM -0500, Yazen Ghannam wrote:
> - /* Don't support asymmetric configurations today */
> - WARN_ON(mca_cfg.banks != 0 && b != mca_cfg.banks);
> - mca_cfg.banks = b;
> + mca_cfg.banks = max(mca_cfg.banks, b);
Should we change mca_cfg.banks to be a per-cpu variable?
DEFINE_PER_CPU(int, mce_num_banks);
That would make it easier to make sure the places
that scan all banks only look at the ones that exist.
-Tony
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