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From: Neeraj Kumar <s.neeraj@samsung.com>
To: Dave Jiang <dave.jiang@intel.com>
Cc: linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev,
	linux-kernel@vger.kernel.org, gost.dev@samsung.com,
	a.manzanares@samsung.com, vishak.g@samsung.com,
	neeraj.kernel@gmail.com, cpgs@samsung.com,
	Jonathan Cameron <jonathan.cameron@huawei.com>
Subject: Re: [PATCH V3 08/20] nvdimm/label: Include region label in slot validation
Date: Mon, 29 Sep 2025 18:47:56 +0530	[thread overview]
Message-ID: <1296674576.21759726381948.JavaMail.epsvc@epcpadp2new> (raw)
In-Reply-To: <12f7fbd9-c35f-4ebf-809f-43f8ab240413@intel.com>

[-- Attachment #1: Type: text/plain, Size: 1256 bytes --]

On 22/09/25 03:17PM, Dave Jiang wrote:
>>  static void region_label_calculate_checksum(struct nvdimm_drvdata *ndd,
>>  				   struct cxl_region_label *region_label)
>>  {
>> @@ -392,16 +404,30 @@ static void region_label_calculate_checksum(struct nvdimm_drvdata *ndd,
>>  }
>>
>>  static bool slot_valid(struct nvdimm_drvdata *ndd,
>> -		struct nd_namespace_label *nd_label, u32 slot)
>> +		       union nd_lsa_label *lsa_label, u32 slot)
>>  {
>> +	struct cxl_region_label *region_label = &lsa_label->region_label;
>> +	struct nd_namespace_label *nd_label = &lsa_label->ns_label;
>> +	char *label_name;
>>  	bool valid;
>>
>>  	/* check that we are written where we expect to be written */
>> -	if (slot != nsl_get_slot(ndd, nd_label))
>> -		return false;
>> -	valid = nsl_validate_checksum(ndd, nd_label);
>> +	if (is_region_label(ndd, lsa_label)) {
>> +		label_name = "rg";
>
>I suggest create a static string table enumerated by 'enum label_type'. That way you can directly address it by 'label_name[ltype]' when being used instead of assigning at run time. And maybe just use "region" and "namespace" since it's for debug output and we don't need to shorten it.
>
>DJ

Sure Dave, Thanks for your suggestion. I will fix it accordingly

Regards,
Neeraj

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  reply	other threads:[~2025-10-06  4:53 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20250917134126epcas5p3e20c773759b91f70a1caa32b9f6f27ff@epcas5p3.samsung.com>
2025-09-17 13:40 ` [PATCH V3 00/20] Add CXL LSA 2.1 format support in nvdimm and cxl pmem Neeraj Kumar
     [not found]   ` <CGME20250917134130epcas5p417d7c26bc564d64d1bcea6e04d55704d@epcas5p4.samsung.com>
2025-09-17 13:40     ` [PATCH V3 01/20] nvdimm/label: Introduce NDD_REGION_LABELING flag to set region label Neeraj Kumar
2025-09-19 23:10       ` Dave Jiang
2025-09-22 12:41         ` Neeraj Kumar
     [not found]   ` <CGME20250917134132epcas5p192c031691ab4cbb905f2b2313bb79dee@epcas5p1.samsung.com>
2025-09-17 13:40     ` [PATCH V3 02/20] nvdimm/label: CXL labels skip the need for 'interleave-set cookie' Neeraj Kumar
2025-09-19 23:31       ` Dave Jiang
     [not found]   ` <CGME20250917134134epcas5p3f64af9556015ed9dfb881f852ea854c4@epcas5p3.samsung.com>
2025-09-17 13:40     ` [PATCH V3 03/20] nvdimm/label: Modify nd_label_base() signature Neeraj Kumar
2025-09-19 21:42       ` Ira Weiny
2025-09-19 23:34       ` Dave Jiang
2025-09-22 12:44         ` Neeraj Kumar
2025-09-24 21:02           ` Alison Schofield
2025-09-29 14:07             ` Neeraj Kumar
     [not found]   ` <CGME20250917134136epcas5p118f18ce5139d489d90ac608e3887c1fc@epcas5p1.samsung.com>
2025-09-17 13:41     ` [PATCH V3 04/20] nvdimm/label: Update mutex_lock() with guard(mutex)() Neeraj Kumar
2025-09-19 21:55       ` Ira Weiny
2025-09-22 12:56         ` Neeraj Kumar
2025-09-19 23:50       ` Dave Jiang
2025-09-20 17:44         ` Ira Weiny
2025-09-22 13:01           ` Neeraj Kumar
2025-09-24 21:42       ` Alison Schofield
2025-09-29 14:19         ` Neeraj Kumar
     [not found]   ` <CGME20250917134138epcas5p2b02390404681df79c26f7a1a0f0262b8@epcas5p2.samsung.com>
2025-09-17 13:41     ` [PATCH V3 05/20] nvdimm/namespace_label: Add namespace label changes as per CXL LSA v2.1 Neeraj Kumar
2025-09-17 14:54       ` Jonathan Cameron
2025-09-19 22:00       ` Ira Weiny
2025-09-22 13:05         ` Neeraj Kumar
2025-09-19 23:59       ` Dave Jiang
2025-09-22 13:03         ` Neeraj Kumar
2025-09-23 21:48       ` Dave Jiang
2025-09-29 13:28         ` Neeraj Kumar
     [not found]   ` <CGME20250917134140epcas5p23c007dab49ed7e98726b0dd9a2ce077a@epcas5p2.samsung.com>
2025-09-17 13:41     ` [PATCH V3 06/20] nvdimm/region_label: Add region label update support Neeraj Kumar
2025-09-17 15:36       ` Jonathan Cameron
2025-09-22 13:12         ` Neeraj Kumar
2025-10-06 16:56         ` Dave Jiang
2025-09-22 23:11       ` Dave Jiang
2025-09-29 13:24         ` Neeraj Kumar
     [not found]   ` <CGME20250917134142epcas5p49d85873cf3ea5f3166c63381ab668fc7@epcas5p4.samsung.com>
2025-09-17 13:41     ` [PATCH V3 07/20] nvdimm/region_label: Add region label delete support Neeraj Kumar
2025-09-22 21:37       ` Dave Jiang
2025-09-29 13:13         ` Neeraj Kumar
     [not found]   ` <CGME20250917134144epcas5p498fb4b005516fca56e68533ce017fba0@epcas5p4.samsung.com>
2025-09-17 13:41     ` [PATCH V3 08/20] nvdimm/label: Include region label in slot validation Neeraj Kumar
2025-09-22 22:17       ` Dave Jiang
2025-09-29 13:17         ` Neeraj Kumar [this message]
2025-09-24 21:30       ` Alison Schofield
2025-09-29 14:10         ` Neeraj Kumar
     [not found]   ` <CGME20250917134146epcas5p2a1f3eb1ece0c000eedd06c3201cb8132@epcas5p2.samsung.com>
2025-09-17 13:41     ` [PATCH V3 09/20] nvdimm/namespace_label: Skip region label during ns label DPA reservation Neeraj Kumar
     [not found]   ` <CGME20250917134148epcas5p1062c53d38d36040a3e65429543099f6d@epcas5p1.samsung.com>
2025-09-17 13:41     ` [PATCH V3 10/20] nvdimm/namespace_label: Skip region label during namespace creation Neeraj Kumar
     [not found]   ` <CGME20250917134150epcas5p4d5cbd55f1ac51ac23736e855ff2725dc@epcas5p4.samsung.com>
2025-09-17 13:41     ` [PATCH V3 11/20] nvdimm/region_label: Preserve cxl region information from region label Neeraj Kumar
     [not found]   ` <CGME20250917134153epcas5p1e1f7a7a19fb41d12b9397c3e6265f823@epcas5p1.samsung.com>
2025-09-17 13:41     ` [PATCH V3 12/20] nvdimm/region_label: Export routine to fetch region information Neeraj Kumar
2025-09-23 20:23       ` Dave Jiang
2025-09-29 13:26         ` Neeraj Kumar
     [not found]   ` <CGME20250917134157epcas5p1b30306bc8596b7b50548ddf3683c3b97@epcas5p1.samsung.com>
2025-09-17 13:41     ` [PATCH V3 13/20] cxl/mem: Refactor cxl pmem region auto-assembling Neeraj Kumar
2025-09-23 22:37       ` Dave Jiang
2025-09-29 13:30         ` Neeraj Kumar
2025-10-06 15:55           ` Dave Jiang
2025-11-07 12:39             ` Neeraj Kumar
2025-11-12 15:55               ` Dave Jiang
2025-11-13  7:27                 ` Neeraj Kumar
     [not found]   ` <CGME20250917134159epcas5p37716c48d36c07aaffe70dafca2fa207b@epcas5p3.samsung.com>
2025-09-17 13:41     ` [PATCH V3 14/20] cxl/region: Add devm_cxl_pmem_add_region() for pmem region creation Neeraj Kumar
2025-09-23 23:50       ` Dave Jiang
2025-09-29 13:37         ` Neeraj Kumar
     [not found]   ` <CGME20250917134202epcas5p23f718742c74c5b519ecbbc1e04840c03@epcas5p2.samsung.com>
2025-09-17 13:41     ` [PATCH V3 15/20] cxl: Add a routine to find cxl root decoder on cxl bus using cxl port Neeraj Kumar
2025-09-24 18:11       ` Dave Jiang
2025-09-29 13:40         ` Neeraj Kumar
2025-10-06 16:02           ` Dave Jiang
     [not found]   ` <CGME20250917134203epcas5p3819aee1deecdeaed95bd92d19d3b1910@epcas5p3.samsung.com>
2025-09-17 13:41     ` [PATCH V3 16/20] cxl/mem: Preserve cxl root decoder during mem probe Neeraj Kumar
2025-09-24 18:23       ` Dave Jiang
2025-09-29 13:52         ` Neeraj Kumar
2025-09-24 21:38       ` Alison Schofield
2025-09-29 14:13         ` Neeraj Kumar
     [not found]   ` <CGME20250917134206epcas5p346640447ba36a00e33ec98c4d35f063b@epcas5p3.samsung.com>
2025-09-17 13:41     ` [PATCH V3 17/20] cxl/pmem: Preserve region information into nd_set Neeraj Kumar
     [not found]   ` <CGME20250917134209epcas5p1b7f861dbd8299ec874ae44cbf63ce87c@epcas5p1.samsung.com>
2025-09-17 13:41     ` [PATCH V3 18/20] cxl/pmem_region: Prep patch to accommodate pmem_region attributes Neeraj Kumar
2025-09-24 18:53       ` Dave Jiang
2025-09-29 13:57         ` Neeraj Kumar
2025-10-06 16:06           ` Dave Jiang
2025-11-07 12:49             ` Neeraj Kumar
2025-11-12 15:40               ` Dave Jiang
2025-11-13  7:29                 ` Neeraj Kumar
2025-10-06 16:09           ` Dave Jiang
     [not found]   ` <CGME20250917134211epcas5p17cf5e4052df126a67b27be971be82fe1@epcas5p1.samsung.com>
2025-09-17 13:41     ` [PATCH V3 19/20] cxl/pmem_region: Add sysfs attribute cxl region label updation/deletion Neeraj Kumar
2025-09-24 20:25       ` Dave Jiang
2025-09-29 14:00         ` Neeraj Kumar
     [not found]   ` <CGME20250917134213epcas5p139ba10deb2f4361f9bbab8e8490c4720@epcas5p1.samsung.com>
2025-09-17 13:41     ` [PATCH V3 20/20] cxl/pmem: Add CXL LSA 2.1 support in cxl pmem Neeraj Kumar
2025-09-24 20:47       ` Dave Jiang
2025-09-29 14:02         ` Neeraj Kumar
2025-10-06 16:13           ` Dave Jiang
2025-09-17 14:50   ` [PATCH V3 00/20] Add CXL LSA 2.1 format support in nvdimm and " Jonathan Cameron
2025-09-17 15:38     ` Dave Jiang
2025-09-22 12:36     ` Neeraj Kumar
2025-09-23 23:04   ` Alison Schofield
2025-09-29 13:33     ` Neeraj Kumar
2025-09-17 13:29 Neeraj Kumar
     [not found] ` <CGME20250917133041epcas5p38c48d254424379593c32f1ea6d141156@epcas5p3.samsung.com>
2025-09-17 13:29   ` [PATCH V3 08/20] nvdimm/label: Include region label in slot validation Neeraj Kumar

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