From: Borislav Petkov <bp@alien8.de>
To: "Koralahalli Channabasappa, Smita" <skoralah@amd.com>
Cc: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>,
x86@kernel.org, linux-edac@vger.kernel.org,
linux-kernel@vger.kernel.org, Tony Luck <tony.luck@intel.com>,
"H . Peter Anvin" <hpa@zytor.com>,
yazen.ghannam@amd.com
Subject: Re: [PATCH v2 3/5] x86/mce: Use mca_msr_reg() in prepare_msrs()
Date: Thu, 28 Oct 2021 10:53:28 +0200 [thread overview]
Message-ID: <YXplCF5ccfbl+dGg@zn.tnic> (raw)
In-Reply-To: <f5287d1d-bb2b-bb9b-1b33-f6692eaeb566@amd.com>
On Wed, Oct 27, 2021 at 03:19:51PM -0500, Koralahalli Channabasappa, Smita wrote:
> Multiple initialization here I mean: Initializing the MCA registers twice.
> Prior to mca_msr_reg() replacement, the MCA registers were initialized
> separately for SMCA and legacy processors. However, this is not required
> after replacing with mca_msr_reg() as it does the job of returning the
> proper MSR addresses.
You mean, there was a simple if-else statement
if (SMCA)
prepare MSRs
else
prepare MSRs for !SMCA
which did the init for each type of system in one go.
But frankly, your change doesn't make it more readable but less - you
have a goto label now and another SMCA feature check at the end. Vs a
simple if-else which is trivial to read.
So I don't see any advantage in this change.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2021-10-28 8:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-19 23:36 [PATCH v2 0/5] x86/mce: Handle error injection failures in mce-inject module Smita Koralahalli
2021-10-19 23:36 ` [PATCH v2 1/5] x86/mce/inject: Check if a bank is unpopulated before error injection Smita Koralahalli
2021-10-25 13:56 ` Borislav Petkov
2021-10-25 17:09 ` Koralahalli Channabasappa, Smita
2021-12-08 11:03 ` [tip: ras/core] x86/mce/inject: Check if a bank is populated before injecting tip-bot2 for Smita Koralahalli
2021-10-19 23:36 ` [PATCH v2 2/5] x86/mce/inject: Warn the user on a not set valid bit in MCA_STATUS Smita Koralahalli
2021-10-20 15:06 ` Luck, Tony
2021-10-26 10:02 ` Borislav Petkov
2021-10-26 16:58 ` Koralahalli Channabasappa, Smita
2021-10-26 17:15 ` Borislav Petkov
2021-10-26 18:53 ` Koralahalli Channabasappa, Smita
2021-10-26 20:25 ` Borislav Petkov
2021-10-19 23:36 ` [PATCH v2 3/5] x86/mce: Use mca_msr_reg() in prepare_msrs() Smita Koralahalli
2021-10-27 11:41 ` Borislav Petkov
2021-10-27 20:19 ` Koralahalli Channabasappa, Smita
2021-10-28 8:53 ` Borislav Petkov [this message]
2021-11-01 18:51 ` Koralahalli Channabasappa, Smita
2021-10-19 23:36 ` [PATCH v2 4/5] x86/mce/inject: Check for writes ignored in status registers Smita Koralahalli
2021-10-19 23:36 ` [PATCH v2 5/5] x86/mce/mce-inject: Return error code to userspace from mce-inject module Smita Koralahalli
2021-10-20 15:18 ` Luck, Tony
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