Re: [PATCH v1 1/2] fuse: Add backing file option to lookup

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

Hi Paul,

kernel test robot noticed the following build errors:

[auto build test ERROR on mszeredi-fuse/for-next]
[also build test ERROR on linus/master v6.16-rc2 next-20250618]
[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/Paul-Lawrence/fuse-Add-backing-file-option-to-lookup/20250618-061717
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-next
patch link:    https://lore.kernel.org/r/20250617221456.888231-2-paullawrence%40google.com
patch subject: [PATCH v1 1/2] fuse: Add backing file option to lookup
config: i386-randconfig-001-20250618 (https://download.01.org/0day-ci/archive/20250618/202506182126.iGTKLLEc-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250618/202506182126.iGTKLLEc-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/202506182126.iGTKLLEc-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   fs/fuse/inode.c: In function 'fuse_inode_backing_eq':
>> fs/fuse/inode.c:479:44: error: 'struct fuse_inode' has no member named 'backing_inode'
     479 |                 && fii->backing_inode == fi->backing_inode;
         |                                            ^~
>> fs/fuse/inode.c:480:1: warning: control reaches end of non-void function [-Wreturn-type]
     480 | }
         | ^


vim +479 fs/fuse/inode.c

   471	
   472	static int fuse_inode_backing_eq(struct inode *inode, void *_nodeidp)
   473	{
   474		struct fuse_inode_identifier *fii =
   475			(struct fuse_inode_identifier *) _nodeidp;
   476		struct fuse_inode *fi = get_fuse_inode(inode);
   477	
   478		return fii->nodeid == fi->nodeid
 > 479			&& fii->backing_inode == fi->backing_inode;
 > 480	}
   481	

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