Re: [PATCH] btrfs: edit __btrfs_add_delayed_item() to use rb helper

[kernel test robot <lkp@intel.com>]

Hi Roger,

kernel test robot noticed the following build errors:

[auto build test ERROR on kdave/for-next]
[also build test ERROR on linus/master v6.13-rc2 next-20241206]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Roger-L-Beckermeyer-III/btrfs-edit-__btrfs_add_delayed_item-to-use-rb-helper/20241209-064154
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
patch link:    https://lore.kernel.org/r/9b85bdbc269d20886590f0a70de66c602d72aa9d.1733695544.git.beckerlee3%40gmail.com
patch subject: [PATCH] btrfs: edit __btrfs_add_delayed_item() to use rb helper
config: arm-randconfig-001-20241209 (https://download.01.org/0day-ci/archive/20241209/202412091036.JGaCqbvL-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241209/202412091036.JGaCqbvL-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412091036.JGaCqbvL-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from fs/btrfs/delayed-inode.c:9:
   In file included from fs/btrfs/ctree.h:10:
   In file included from include/linux/pagemap.h:8:
   In file included from include/linux/mm.h:2223:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> fs/btrfs/delayed-inode.c:392:10: error: call to undeclared function 'rb_find_add_cached'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     392 |         exist = rb_find_add_cached(&ins->rb_node, root, btrfs_add_delayed_item_cmp);
         |                 ^
>> fs/btrfs/delayed-inode.c:392:8: error: incompatible integer to pointer conversion assigning to 'struct rb_node *' from 'int' [-Wint-conversion]
     392 |         exist = rb_find_add_cached(&ins->rb_node, root, btrfs_add_delayed_item_cmp);
         |               ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning and 2 errors generated.


vim +/rb_find_add_cached +392 fs/btrfs/delayed-inode.c

   380	
   381	static int __btrfs_add_delayed_item(struct btrfs_delayed_node *delayed_node,
   382					    struct btrfs_delayed_item *ins)
   383	{
   384		struct rb_root_cached *root;
   385		struct rb_node *exist;
   386	
   387		if (ins->type == BTRFS_DELAYED_INSERTION_ITEM)
   388			root = &delayed_node->ins_root;
   389		else
   390			root = &delayed_node->del_root;
   391	
 > 392		exist = rb_find_add_cached(&ins->rb_node, root, btrfs_add_delayed_item_cmp);
   393		if (exist != NULL)
   394			return -EEXIST;
   395	
   396		if (ins->type == BTRFS_DELAYED_INSERTION_ITEM &&
   397		    ins->index >= delayed_node->index_cnt)
   398			delayed_node->index_cnt = ins->index + 1;
   399	
   400		delayed_node->count++;
   401		atomic_inc(&delayed_node->root->fs_info->delayed_root->items);
   402		return 0;
   403	}
   404	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki