linux-kernel - Re: [PATCH v5 1/1] cxl/pmem: debug invalid serial number data

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Message-ID: <Z7YxG6o4b5CVNErZ@aschofie-mobl2.lan>
Date: Wed, 19 Feb 2025 11:29:31 -0800
From: Alison Schofield <alison.schofield@...el.com>
To: Yuquan Wang <wangyuquan1236@...tium.com.cn>
Cc: dave@...olabs.net, jonathan.cameron@...wei.com, dave.jiang@...el.com,
	vishal.l.verma@...el.com, ira.weiny@...el.com,
	dan.j.williams@...el.com, linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org, chenbaozi@...tium.com.cn
Subject: Re: [PATCH v5 1/1] cxl/pmem: debug invalid serial number data

On Wed, Feb 19, 2025 at 12:00:29PM +0800, Yuquan Wang wrote:
> In a nvdimm interleave-set each device with an invalid or zero
> serial number may cause pmem region initialization to fail, but in
> cxl case such device could still set cookies of nd_interleave_set
> and create a nvdimm pmem region.
> 
> This adds the validation of serial number in cxl pmem region creation.
> The event of no serial number would cause to fail to set the cookie
> and pmem region.
> 
> For cxl-test to work properly, always +1 on mock device's serial
> number.
> 
> Signed-off-by: Yuquan Wang <wangyuquan1236@...tium.com.cn>

Re-applying my tag-

Reviewed-by: Alison Schofield <alison.schofield@...el.com>

snip
>