[bcache:nvdimm-meta 5/8] drivers/md/bcache/nvm-pages.c:287:6: error: redefinition of 'bch_nvm_free_pages'

[bcache:nvdimm-meta 5/8] drivers/md/bcache/nvm-pages.c:287:6: error: redefinition of 'bch_nvm_free_pages'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git nvdimm-meta
head:   cafe7a7d88c5585454eb1285218db1e60a174797
commit: f9f3f44e35b3caa3b66bfe5f82c4c7550971e4df [5/8] bcache: bch_nvm_free_pages() of the buddy
config: arc-randconfig-s031-20210108 (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-208-g46a52ca4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git/commit/?id=f9f3f44e35b3caa3b66bfe5f82c4c7550971e4df
        git remote add bcache https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git
        git fetch --no-tags bcache nvdimm-meta
        git checkout f9f3f44e35b3caa3b66bfe5f82c4c7550971e4df
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/md/bcache/nvm-pages.c:287:6: error: redefinition of 'bch_nvm_free_pages'
     287 | void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid)
         |      ^~~~~~~~~~~~~~~~~~
   In file included from drivers/md/bcache/nvm-pages.c:14:
   drivers/md/bcache/nvm-pages.h:98:20: note: previous definition of 'bch_nvm_free_pages' was here
      98 | static inline void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid) { }
         |                    ^~~~~~~~~~~~~~~~~~
   drivers/md/bcache/nvm-pages.c:327:7: error: redefinition of 'bch_nvm_alloc_pages'
     327 | void *bch_nvm_alloc_pages(int order, const char *owner_uuid)
         |       ^~~~~~~~~~~~~~~~~~~
   In file included from drivers/md/bcache/nvm-pages.c:14:
   drivers/md/bcache/nvm-pages.h:93:21: note: previous definition of 'bch_nvm_alloc_pages' was here
      93 | static inline void *bch_nvm_alloc_pages(int order, const char *owner_uuid)
         |                     ^~~~~~~~~~~~~~~~~~~
   drivers/md/bcache/nvm-pages.c:574:27: error: redefinition of 'bch_register_namespace'
     574 | struct bch_nvm_namespace *bch_register_namespace(const char *dev_path)
         |                           ^~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/md/bcache/nvm-pages.c:14:
   drivers/md/bcache/nvm-pages.h:83:41: note: previous definition of 'bch_register_namespace' was here
      83 | static inline struct bch_nvm_namespace *bch_register_namespace(const char *dev_path)
         |                                         ^~~~~~~~~~~~~~~~~~~~~~
   drivers/md/bcache/nvm-pages.c:670:12: error: redefinition of 'bch_nvm_init'
     670 | int __init bch_nvm_init(void)
         |            ^~~~~~~~~~~~
   In file included from drivers/md/bcache/nvm-pages.c:14:
   drivers/md/bcache/nvm-pages.h:87:19: note: previous definition of 'bch_nvm_init' was here
      87 | static inline int bch_nvm_init(void)
         |                   ^~~~~~~~~~~~
   drivers/md/bcache/nvm-pages.c:686:6: error: redefinition of 'bch_nvm_exit'
     686 | void bch_nvm_exit(void)
         |      ^~~~~~~~~~~~
   In file included from drivers/md/bcache/nvm-pages.c:14:
   drivers/md/bcache/nvm-pages.h:91:20: note: previous definition of 'bch_nvm_exit' was here
      91 | static inline void bch_nvm_exit(void) { }
         |                    ^~~~~~~~~~~~
   In file included from drivers/md/bcache/nvm-pages.h:6,
                    from drivers/md/bcache/nvm-pages.c:14:
   include/uapi/linux/bcache-nvm.h:105:19: warning: 'nvm_pages_pgalloc_magic' defined but not used [-Wunused-const-variable=]
     105 | static const char nvm_pages_pgalloc_magic[] = {
         |                   ^~~~~~~~~~~~~~~~~~~~~~~
   include/uapi/linux/bcache-nvm.h:102:19: warning: 'nvm_pages_magic' defined but not used [-Wunused-const-variable=]
     102 | static const char nvm_pages_magic[] = {
         |                   ^~~~~~~~~~~~~~~


vim +/bch_nvm_free_pages +287 drivers/md/bcache/nvm-pages.c

   286	
 > 287	void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid)
   288	{
   289		struct bch_nvm_namespace *ns;
   290		struct bch_owner_list *owner_list;
   291		struct bch_nvm_alloced_recs *alloced_recs;
   292		int r;
   293	
   294		mutex_lock(&only_set->lock);
   295	
   296		ns = find_nvm_by_addr(addr, order);
   297		if (!ns) {
   298			pr_info("can't find nvm_dev by kaddr %p\n", addr);
   299			goto unlock;
   300		}
   301	
   302		owner_list = find_owner_list(owner_uuid, false);
   303		if (!owner_list) {
   304			pr_info("can't found owner(uuid=%s)\n", owner_uuid);
   305			goto unlock;
   306		}
   307	
   308		alloced_recs = find_nvm_alloced_recs(owner_list, ns, false);
   309		if (!alloced_recs) {
   310			pr_info("can't find alloced_recs(uuid=%s)\n", ns->uuid);
   311			goto unlock;
   312		}
   313	
   314		r = remove_extent(alloced_recs, addr, order);
   315		if (r < 0) {
   316			pr_info("can't find extent\n");
   317			goto unlock;
   318		}
   319	
   320		__free_space(ns, addr, order);
   321	
   322	unlock:
   323		mutex_unlock(&only_set->lock);
   324	}
   325	EXPORT_SYMBOL_GPL(bch_nvm_free_pages);
   326	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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