linux-kernel - RE: [PATCH v2 16/16] EDAC/mce_amd: Add support for FRU Text in MCA

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Date: Fri, 5 Apr 2024 16:06:36 +0000
From: "Luck, Tony" <tony.luck@...el.com>
To: Yazen Ghannam <yazen.ghannam@....com>, "linux-edac@...r.kernel.org"
	<linux-edac@...r.kernel.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>, "Avadhut.Naik@....com"
	<Avadhut.Naik@....com>, "John.Allen@....com" <John.Allen@....com>
Subject: RE: [PATCH v2 16/16] EDAC/mce_amd: Add support for FRU Text in MCA

> diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
> index aa27729f7899..a4d09dda5fae 100644
> --- a/arch/x86/kernel/cpu/mce/core.c
> +++ b/arch/x86/kernel/cpu/mce/core.c
> @@ -207,6 +207,8 @@ static void __print_mce(struct mce_hw_err *err)
>                       pr_cont("SYND2 %llx ", err->vi.amd.synd2);
>               if (m->ipid)
>                       pr_cont("IPID %llx ", m->ipid);
> +             if (err->vi.amd.config)

This is in common code. If other vendors start adding their own stuff to the
"vi" union you might incorrectly print this.  Add a vendor check before looking
at values inside "m->vi".

> +                     pr_cont("CONFIG %llx ", err->vi.amd.config);
>       }
>
>       pr_cont("\n");