linux-kernel - Re: [PATCH V2 03/20] nvdimm/namespace_label: Add namespace label changes as per CXL LSA v2.1

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Message-ID: <68a4d250ee63e_281ac7294fe@iweiny-mobl.notmuch>
Date: Tue, 19 Aug 2025 14:36:48 -0500
From: Ira Weiny <ira.weiny@...el.com>
To: Neeraj Kumar <s.neeraj@...sung.com>, <linux-cxl@...r.kernel.org>,
	<nvdimm@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
	<gost.dev@...sung.com>
CC: <a.manzanares@...sung.com>, <vishak.g@...sung.com>,
	<neeraj.kernel@...il.com>, Neeraj Kumar <s.neeraj@...sung.com>
Subject: Re: [PATCH V2 03/20] nvdimm/namespace_label: Add namespace label
 changes as per CXL LSA v2.1

Neeraj Kumar wrote:
> CXL 3.2 Spec mentions CXL LSA 2.1 Namespace Labels at section 9.13.2.5
> Modified __pmem_label_update function using setter functions to update
> namespace label as per CXL LSA 2.1
> 
> Signed-off-by: Neeraj Kumar <s.neeraj@...sung.com>

[snip]

>  
> +static inline void nsl_set_type(struct nvdimm_drvdata *ndd,
> +				struct nd_namespace_label *ns_label)
> +{
> +	uuid_t tmp;
> +
> +	if (ndd->cxl) {
> +		uuid_parse(CXL_NAMESPACE_UUID, &tmp);
> +		export_uuid(ns_label->cxl.type, &tmp);

One more thing why can't uuid_parse put the UUID directly into type?

I think this is done at least 1 other place.

Ira


[snip]