[dm-devel] [dm:for-next 5/8] drivers/md/persistent-data/dm-btree.c:702:5: warning: no previous prototype for 'shadow_child'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
head:   68040817337fda98196974401391f2d1b9f87e49
commit: d69e2e7e28bd1d13ad2ac1f2e9ea6184567d1587 [5/8] dm btree: improve btree residency
config: um-allmodconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?id=d69e2e7e28bd1d13ad2ac1f2e9ea6184567d1587
        git remote add dm https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
        git fetch --no-tags dm for-next
        git checkout d69e2e7e28bd1d13ad2ac1f2e9ea6184567d1587
        # save the attached .config to linux build tree
        make W=1 ARCH=um 

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

All warnings (new ones prefixed by >>):

>> drivers/md/persistent-data/dm-btree.c:702:5: warning: no previous prototype for 'shadow_child' [-Wmissing-prototypes]
     702 | int shadow_child(struct dm_btree_info *info, struct dm_btree_value_type *vt,
         |     ^~~~~~~~~~~~


vim +/shadow_child +702 drivers/md/persistent-data/dm-btree.c

   696	
   697	/*
   698	 * We often need to modify a sibling node.  This function shadows a particular
   699	 * child of the given parent node.  Making sure to update the parent to point
   700	 * to the new shadow.
   701	 */
 > 702	int shadow_child(struct dm_btree_info *info, struct dm_btree_value_type *vt,
   703			 struct btree_node *parent, unsigned index, struct dm_block **result)
   704	{
   705		int r, inc;
   706		dm_block_t root;
   707		struct btree_node *node;
   708	
   709		root = value64(parent, index);
   710	
   711		r = dm_tm_shadow_block(info->tm, root, &btree_node_validator,
   712				       result, &inc);
   713		if (r)
   714			return r;
   715	
   716		node = dm_block_data(*result);
   717	
   718		if (inc)
   719			inc_children(info->tm, node, vt);
   720	
   721		*((__le64 *) value_ptr(parent, index)) =
   722			cpu_to_le64(dm_block_location(*result));
   723	
   724		return 0;
   725	}
   726	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
-------------- next part --------------
A non-text attachment was scrubbed...
Name: .config.gz
Type: application/gzip
Size: 24498 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/dm-devel/attachments/20210521/608072ee/attachment.gz>