[hch-misc:swap_activate /12] block/fops.c:963:25: error: passing argument 3 of 'add_swap_extent' makes integer from pointer without a cast

[hch-misc:swap_activate /12] block/fops.c:963:25: error: passing argument 3 of 'add_swap_extent' makes integer from pointer without a cast

[kernel test robot]

tree:   git://git.infradead.org/users/hch/misc.git swap_activate
head:   7414a67e6a700a2e9fef1fcd2ccce5592290e575
commit: 2596670a53e80bf99d7793cafc90e33db3899192 [/12] swap: push down setting sis->bdev into ->swap_activate
config: microblaze-defconfig (https://download.01.org/0day-ci/archive/20260512/202605121802.seSugOoh-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260512/202605121802.seSugOoh-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/202605121802.seSugOoh-lkp@intel.com/

All errors (new ones prefixed by >>):

   block/fops.c: In function 'blkdev_swap_activate':
>> block/fops.c:963:25: error: passing argument 3 of 'add_swap_extent' makes integer from pointer without a cast [-Wint-conversion]
     963 |                         I_BDEV(file->f_mapping->host), 0);
         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                         |
         |                         struct block_device *
   In file included from include/linux/suspend.h:5,
                    from block/fops.c:17:
   include/linux/swap.h:531:49: note: expected 'long unsigned int' but argument is of type 'struct block_device *'
     531 |                                   unsigned long nr_pages, sector_t start_block)
         |                                   ~~~~~~~~~~~~~~^~~~~~~~


vim +/add_swap_extent +963 block/fops.c

   951	
   952	static int blkdev_swap_activate(struct file *file, struct swap_info_struct *sis)
   953	{
   954		loff_t isize = i_size_read(bdev_file_inode(file));
   955	
   956		/*
   957		 * The swap code performs arbitrary overwrites, which are not supported
   958		 * on zones with sequential write constraints.
   959		 */
   960		if (bdev_is_zoned(I_BDEV(file->f_mapping->host)))
   961			return -EINVAL;
   962		return add_swap_extent(sis, div_u64(isize, PAGE_SIZE),
 > 963				I_BDEV(file->f_mapping->host), 0);
   964	}
   965	

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