Re: [PATCH V3 05/20] nvdimm/namespace_label: Add namespace label changes as per CXL LSA v2.1

Neeraj Kumar
2025-09-22T15:53:05Z

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On 19/09/25 04:59PM, Dave Jiang wrote:
>
>
>On 9/17/25 6:41 AM, 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@samsung.com>
>> ---
>> drivers/nvdimm/label.c | 3 +++
>> drivers/nvdimm/nd.h | 23 +++++++++++++++++++++++
>> 2 files changed, 26 insertions(+)
>>
>> diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c
>> index 3235562d0e1c..182f8c9a01bf 100644
>> --- a/drivers/nvdimm/label.c
>> +++ b/drivers/nvdimm/label.c
>> +static inline void nsl_set_type(struct nvdimm_drvdata *ndd,
>> + struct nd_namespace_label *ns_label)
>> +{
>> + if (ndd->cxl && ns_label)
>> + uuid_parse(CXL_NAMESPACE_UUID, (uuid_t *) ns_label->cxl.type);
>
>Personally would prefer something like:
>
>if (!(ndd->cxl && ns_label))
> return;
>uuid_parse(....);
>
>Also, no space needed after casting.
>
>> +}
>> +
>> +static inline void nsl_set_alignment(struct nvdimm_drvdata *ndd,
>> + struct nd_namespace_label *ns_label,
>> + u32 align)
>> +{
>> + if (ndd->cxl)
>> + ns_label->cxl.align = __cpu_to_le32(align);
>
>same comment as above
>> +}
>> +
>> +static inline void nsl_set_region_uuid(struct nvdimm_drvdata *ndd,
>> + struct nd_namespace_label *ns_label,
>> + const uuid_t *uuid)
>> +{
>> + if (ndd->cxl && uuid)
>> + export_uuid(ns_label->cxl.region_uuid, uuid);
>
>same comment as above

Sure Dave, I will fix it in next patch-set

Regards,
Neeraj

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