Re: [PATCH V2 19/20] cxl/pmem_region: Prep patch to accommodate pmem_region attributes
From: kernel test robot
Date: Wed Jul 30 2025 - 21:58:01 EST
Hi Neeraj,
kernel test robot noticed the following build errors:
[auto build test ERROR 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/20250730121209.303202-20-s.neeraj%40samsung.com
patch subject: [PATCH V2 19/20] cxl/pmem_region: Prep patch to accommodate pmem_region attributes
config: i386-buildonly-randconfig-001-20250731 (https://download.01.org/0day-ci/archive/20250731/202507310942.77glfQS3-lkp@xxxxxxxxx/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/20250731/202507310942.77glfQS3-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507310942.77glfQS3-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
In file included from drivers/cxl/cxlmem.h:12,
from drivers/cxl/pci.c:15:
>> drivers/cxl/cxl.h:921:20: error: redefinition of 'create_pmem_region'
921 | static inline void create_pmem_region(struct nvdimm *nvdimm)
| ^~~~~~~~~~~~~~~~~~
drivers/cxl/cxl.h:898:20: note: previous definition of 'create_pmem_region' with type 'void(struct nvdimm *)'
898 | static inline void create_pmem_region(struct nvdimm *nvdimm)
| ^~~~~~~~~~~~~~~~~~
vim +/create_pmem_region +921 drivers/cxl/cxl.h
902
903 #ifdef CONFIG_CXL_PMEM_REGION
904 bool is_cxl_pmem_region(struct device *dev);
905 struct cxl_pmem_region *to_cxl_pmem_region(struct device *dev);
906 int devm_cxl_add_pmem_region(struct cxl_region *cxlr);
907 void create_pmem_region(struct nvdimm *nvdimm);
908 #else
909 static inline bool is_cxl_pmem_region(struct device *dev)
910 {
911 return false;
912 }
913 static inline struct cxl_pmem_region *to_cxl_pmem_region(struct device *dev)
914 {
915 return NULL;
916 }
917 static inline int devm_cxl_add_pmem_region(struct cxl_region *cxlr)
918 {
919 return 0;
920 }
> 921 static inline void create_pmem_region(struct nvdimm *nvdimm)
922 {
923 }
924 #endif
925
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