linux-kernel - Re: [PATCH V3 08/20] nvdimm/label: Include region label in slot validation

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Message-ID: <306123060.201759726504908.JavaMail.epsvc@epcpadp1new>
Date: Mon, 29 Sep 2025 19:40:14 +0530
From: Neeraj Kumar <s.neeraj@...sung.com>
To: Alison Schofield <alison.schofield@...el.com>
Cc: linux-cxl@...r.kernel.org, nvdimm@...ts.linux.dev,
	linux-kernel@...r.kernel.org, gost.dev@...sung.com,
	a.manzanares@...sung.com, vishak.g@...sung.com, neeraj.kernel@...il.com,
	cpgs@...sung.com, Jonathan Cameron <jonathan.cameron@...wei.com>
Subject: Re: [PATCH V3 08/20] nvdimm/label: Include region label in slot
 validation

On 24/09/25 02:30PM, Alison Schofield wrote:
>On Wed, Sep 17, 2025 at 07:11:04PM +0530, Neeraj Kumar wrote:
>> Slot validation routine validates label slot by calculating label
>> checksum. It was only validating namespace label. This changeset also
>> validates region label if present.
>
>Neeraj,
>
>Was it previously wrong 'only validating namespace label'
>- or -
>Is validating region label something new available with cxl
>namespaces that we now must add?
>
>I'm looking for that pattern in these commit messages, ie
>this is how it use to be, this is why it doesn't work now,
>so here is the change.
>
>-- Alison
>

Hi Alison,

Earlier labels were meant only as namespace lables. LSA 2.1 introduces
new region label because of this slots for both namespace and region
labels should be validated.

May be I will elaborate the commit message to properly communicate
this information


Regards,
Neeraj