[bcache:nvdimm-meta 9/13] drivers/md/bcache/journal.c:987:7: warning: no previous prototype for 'journal_nvm_base'

[bcache:nvdimm-meta 9/13] drivers/md/bcache/journal.c:987:7: warning: no previous prototype for 'journal_nvm_base'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git nvdimm-meta
head:   d770c3e51e25b3a0ceb5859218da09f725151956
commit: 11ca329aa5d8560e4b90107daa14799a49bda809 [9/13] bcache: initialize journal for nvdimm meta device
config: x86_64-randconfig-s022-20210120 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # 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=11ca329aa5d8560e4b90107daa14799a49bda809
        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 11ca329aa5d8560e4b90107daa14799a49bda809
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> drivers/md/bcache/journal.c:987:7: warning: no previous prototype for 'journal_nvm_base' [-Wmissing-prototypes]
     987 | void *journal_nvm_base(struct bch_extent *list, struct cache *ca)
         |       ^~~~~~~~~~~~~~~~
>> drivers/md/bcache/journal.c:1006:6: warning: no previous prototype for 'bch_release_nvm_extent_list' [-Wmissing-prototypes]
    1006 | void bch_release_nvm_extent_list(struct bch_extent *list)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/md/bcache/journal.c:1017:7: warning: no previous prototype for 'get_nvdimm_journal_space' [-Wmissing-prototypes]
    1017 | void *get_nvdimm_journal_space(struct cache *ca)
         |       ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/md/bcache/journal.c:1034:5: warning: no previous prototype for 'bch_journal_init' [-Wmissing-prototypes]
    1034 | int bch_journal_init(struct cache *ca)
         |     ^~~~~~~~~~~~~~~~
   drivers/md/bcache/journal.c: In function 'bch_journal_init':
   drivers/md/bcache/journal.c:1039:21: error: implicit declaration of function 'bch_has_feature_nvdimm_meta' [-Werror=implicit-function-declaration]
    1039 |  bool nvdimm_meta = bch_has_feature_nvdimm_meta(ca->sb);
         |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/journal_nvm_base +987 drivers/md/bcache/journal.c

   986	
 > 987	void *journal_nvm_base(struct bch_extent *list, struct cache *ca)
   988	{
   989		void *ret = NULL;
   990		struct jset *jset;
   991		struct list_head *cur;
   992		struct bch_extent *ext;
   993	
   994		list_for_each(cur, &list->list) {
   995			ext = list_entry(cur, struct bch_extent, list);
   996			jset = ext->kaddr;
   997			if (jset->magic == jset_magic(&ca->sb)) {
   998				ret = ext->kaddr;
   999				break;
  1000			}
  1001		}
  1002	
  1003		return ret;
  1004	}
  1005	
> 1006	void bch_release_nvm_extent_list(struct bch_extent *list)
  1007	{
  1008		struct bch_extent *ext;
  1009		struct list_head *cur, *next;
  1010	
  1011		list_for_each_safe(cur, next, &list->list) {
  1012			ext = list_entry(cur, struct bch_extent, list);
  1013			kfree(ext);
  1014		}
  1015	}
  1016	
> 1017	void *get_nvdimm_journal_space(struct cache *ca)
  1018	{
  1019		struct bch_extent *allocated_list = NULL;
  1020		void *ret = NULL;
  1021	
  1022		allocated_list = bch_get_allocated_pages(ca->sb.set_uuid);
  1023		if (allocated_list) {
  1024			ret = journal_nvm_base(allocated_list, ca);
  1025			bch_release_nvm_extent_list(allocated_list);
  1026		} else {
  1027			int order = ilog2(ca->sb.bucket_size * SB_JOURNAL_BUCKETS);
  1028			ret = bch_nvm_alloc_pages(order, ca->sb.set_uuid);
  1029		}
  1030	
  1031		return ret;
  1032	}
  1033	

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

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