[PATCH 5/6] block/bdev: lift restrictions on supported blocksize

[kernel test robot]

Hi Hannes,

kernel test robot noticed the following build errors:

[auto build test ERROR on axboe-block/for-next]
[also build test ERROR on linus/master v6.9]
[cannot apply to next-20240514]
[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/Hannes-Reinecke/fs-mpage-avoid-negative-shift-for-large-blocksize/20240515-014146
base:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
patch link:    https://lore.kernel.org/r/20240514173900.62207-6-hare%40kernel.org
patch subject: [PATCH 5/6] block/bdev: lift restrictions on supported blocksize
config: openrisc-allnoconfig (https://download.01.org/0day-ci/archive/20240515/202405151142.8COQSJsa-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240515/202405151142.8COQSJsa-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405151142.8COQSJsa-lkp@intel.com/

All errors (new ones prefixed by >>):

   block/bdev.c: In function 'set_init_blocksize':
   block/bdev.c:145:9: error: implicit declaration of function 'mapping_set_folio_min_order' [-Werror=implicit-function-declaration]
     145 |         mapping_set_folio_min_order(bdev->bd_inode->i_mapping,
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   block/bdev.c: In function 'set_blocksize':
>> block/bdev.c:152:23: error: 'bs' undeclared (first use in this function); did you mean 'abs'?
     152 |         if (get_order(bs) > MAX_PAGECACHE_ORDER || size < 512 ||
         |                       ^~
         |                       abs
   block/bdev.c:152:23: note: each undeclared identifier is reported only once for each function it appears in
   cc1: some warnings being treated as errors


vim +152 block/bdev.c

   148	
   149	int set_blocksize(struct block_device *bdev, int size)
   150	{
   151		/* Size must be a power of two, and between 512 and MAX_PAGECACHE_ORDER*/
 > 152		if (get_order(bs) > MAX_PAGECACHE_ORDER || size < 512 ||
   153		    !is_power_of_2(size))
   154			return -EINVAL;
   155	
   156		/* Size cannot be smaller than the size supported by the device */
   157		if (size < bdev_logical_block_size(bdev))
   158			return -EINVAL;
   159	
   160		/* Don't change the size if it is same as current */
   161		if (bdev->bd_inode->i_blkbits != blksize_bits(size)) {
   162			sync_blockdev(bdev);
   163			bdev->bd_inode->i_blkbits = blksize_bits(size);
   164			mapping_set_folio_min_order(bdev->bd_inode->i_mapping,
   165						    get_order(size));
   166			kill_bdev(bdev);
   167		}
   168		return 0;
   169	}
   170	

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