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Message-ID: <202507311814.ngKmd10b-lkp@intel.com>
Date: Thu, 31 Jul 2025 18:36:23 +0800
From: kernel test robot <lkp@...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: oe-kbuild-all@...ts.linux.dev, a.manzanares@...sung.com,
vishak.g@...sung.com, neeraj.kernel@...il.com,
Neeraj Kumar <s.neeraj@...sung.com>
Subject: Re: [PATCH V2 20/20] cxl/pmem_region: Add sysfs attribute cxl region
label updation/deletion
Hi Neeraj,
kernel test robot noticed the following build warnings:
[auto build test WARNING on f11a5f89910a7ae970fbce4fdc02d86a8ba8570f]
url: https://github.com/intel-lab-lkp/linux/commits/Neeraj-Kumar/nvdimm-label-Introduce-NDD_CXL_LABEL-flag-to-set-cxl-label-format/20250730-202209
base: f11a5f89910a7ae970fbce4fdc02d86a8ba8570f
patch link: https://lore.kernel.org/r/20250730121209.303202-21-s.neeraj%40samsung.com
patch subject: [PATCH V2 20/20] cxl/pmem_region: Add sysfs attribute cxl region label updation/deletion
config: i386-randconfig-062-20250731 (https://download.01.org/0day-ci/archive/20250731/202507311814.ngKmd10b-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250731/202507311814.ngKmd10b-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507311814.ngKmd10b-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/cxl/core/pmem_region.c:127:1: sparse: sparse: symbol 'dev_attr_region_label_delete' was not declared. Should it be static?
>> drivers/cxl/core/pmem_region.c:135:24: sparse: sparse: symbol 'cxl_pmem_region_group' was not declared. Should it be static?
vim +/dev_attr_region_label_delete +127 drivers/cxl/core/pmem_region.c
102
103 static ssize_t region_label_delete_store(struct device *dev,
104 struct device_attribute *attr,
105 const char *buf, size_t len)
106 {
107 struct cxl_pmem_region *cxlr_pmem = to_cxl_pmem_region(dev);
108 struct cxl_region *cxlr = cxlr_pmem->cxlr;
109 struct cxl_region_params *p = &cxlr->params;
110 ssize_t rc;
111
112 ACQUIRE(rwsem_write_kill, rwsem)(&cxl_rwsem.region);
113 rc = ACQUIRE_ERR(rwsem_write_kill, &rwsem);
114 if (rc)
115 return rc;
116
117 if (cxlr && cxlr->cxlr_pmem && cxlr->cxlr_pmem->nd_region) {
118 rc = nd_region_label_delete(cxlr->cxlr_pmem->nd_region);
119 if (rc)
120 return rc;
121 }
122
123 p->region_label_state = 0;
124
125 return len;
126 }
> 127 DEVICE_ATTR_WO(region_label_delete);
128
129 static struct attribute *cxl_pmem_region_attrs[] = {
130 &dev_attr_region_label_update.attr,
131 &dev_attr_region_label_delete.attr,
132 NULL
133 };
134
> 135 struct attribute_group cxl_pmem_region_group = {
136 .attrs = cxl_pmem_region_attrs,
137 };
138
--
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