tree:   git://git.infradead.org/users/hch/xfs iomap-invalidate
head:   507f01124bb898462c40ab38fd4c66a38ce70d0a
commit: 507f01124bb898462c40ab38fd4c66a38ce70d0a [4/4] iomap: fall back to buffered writes for invalidation failures
config: alpha-allmodconfig (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 507f01124bb898462c40ab38fd4c66a38ce70d0a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha 

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 >>):

   fs/zonefs/super.c: In function 'zonefs_file_write_iter':
>> fs/zonefs/super.c:790:3: error: 'ret' undeclared (first use in this function); did you mean 'net'?
     790 |   ret = zonefs_file_dio_write(iocb, from);
         |   ^~~
         |   net
   fs/zonefs/super.c:790:3: note: each undeclared identifier is reported only once for each function it appears in

vim +790 fs/zonefs/super.c

   774	
   775	static ssize_t zonefs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
   776	{
   777		struct inode *inode = file_inode(iocb->ki_filp);
   778	
   779		if (unlikely(IS_IMMUTABLE(inode)))
   780			return -EPERM;
   781	
   782		if (sb_rdonly(inode->i_sb))
   783			return -EROFS;
   784	
   785		/* Write operations beyond the zone size are not allowed */
   786		if (iocb->ki_pos >= ZONEFS_I(inode)->i_max_size)
   787			return -EFBIG;
   788	
   789		if (iocb->ki_flags & IOCB_DIRECT) {
 > 790			ret = zonefs_file_dio_write(iocb, from);
   791			if (ret != -ENOTBLK)
   792				return ret;
   793		}
   794	
   795		return zonefs_file_buffered_write(iocb, from);
   796	}
   797	

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