linux-kernel - Re: [PATCH v2 05/16] x86/mce: Cleanup bank processing on init

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Message-ID: <Z65y-1IQKmCLOhXu@agluck-desk3>
Date: Thu, 13 Feb 2025 14:32:27 -0800
From: "Luck, Tony" <tony.luck@...el.com>
To: Yazen Ghannam <yazen.ghannam@....com>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org,
	linux-edac@...r.kernel.org, Smita.KoralahalliChannabasappa@....com
Subject: Re: [PATCH v2 05/16] x86/mce: Cleanup bank processing on init

On Thu, Feb 13, 2025 at 04:45:54PM +0000, Yazen Ghannam wrote:
> From: Borislav Petkov <bp@...e.de>
> 
> Unify the bank preparation into __mcheck_cpu_init_clear_banks(), rename
> that function to what it does now - prepares banks. Do this so that
> generic and vendor banks init goes first so that settings done during
> that init can take effect before the first bank polling takes place.
> 
> Move __mcheck_cpu_check_banks() into __mcheck_cpu_init_prepare_banks()
> as it already loops over the banks.
> 
> Signed-off-by: Borislav Petkov <bp@...e.de>
> Reviewed-by: Yazen Ghannam <yazen.ghannam@....com>
> ---
> 
> Notes:
>     Link:
>     https://lore.kernel.org/r/20221206173607.1185907-2-yazen.ghannam@amd.com
>     
>     v1->v2:
>     * New in v2, but based on old patch (see link).
>     * Kept old tags for reference.
> 
>  arch/x86/include/asm/mce.h     |  3 +-
>  arch/x86/kernel/cpu/mce/core.c | 63 ++++++++++++------------------------------
>  2 files changed, 19 insertions(+), 47 deletions(-)
> 
> diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
> index 2701aca04aec..36ff81c1b3b1 100644
> --- a/arch/x86/include/asm/mce.h
> +++ b/arch/x86/include/asm/mce.h
> @@ -290,8 +290,7 @@ DECLARE_PER_CPU(mce_banks_t, mce_poll_banks);
>  enum mcp_flags {
>  	MCP_TIMESTAMP	= BIT(0),	/* log time stamp */
>  	MCP_UC		= BIT(1),	/* log uncorrected errors */
> -	MCP_DONTLOG	= BIT(2),	/* only clear, don't log */

MCP_DONTLOG is removed in this patch. But no mention of this change in
the commit description.

-Tony