[djwong-xfs:fsverity-cleanups-6.9 26/44] fs/verity/verify.c:419: warning: Function parameter or struct member 'level' not described in 'fsverity_read_merkle_tree_block'

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git fsverity-cleanups-6.9
head:   f0f02c9c8136c2900f1a5e3fd479cb42a5453ab0
commit: 9f776a322d851cf08ce43dfb0129d1d49bc628af [26/44] fsverity: reorganize read_merkle_tree_block signature
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20240313/202403131626.aADdoCAL-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240313/202403131626.aADdoCAL-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/202403131626.aADdoCAL-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/verity/verify.c:419: warning: Function parameter or struct member 'level' not described in 'fsverity_read_merkle_tree_block'


vim +419 fs/verity/verify.c

057a4e47b75182 Andrey Albershteyn 2024-02-28  404  
7e233393e1188a Darrick J. Wong    2024-03-12  405  /**
7e233393e1188a Darrick J. Wong    2024-03-12  406   * fsverity_read_merkle_tree_block() - read Merkle tree block
7e233393e1188a Darrick J. Wong    2024-03-12  407   * @inode: inode to which this Merkle tree blocks belong
7e233393e1188a Darrick J. Wong    2024-03-12  408   * @params: merkle tree parameters
7e233393e1188a Darrick J. Wong    2024-03-12  409   * @pos: byte position within merkle tree
7e233393e1188a Darrick J. Wong    2024-03-12  410   * @ra_bytes: try to read ahead this many btes
7e233393e1188a Darrick J. Wong    2024-03-12  411   * @block: block to be loaded
7e233393e1188a Darrick J. Wong    2024-03-12  412   *
7e233393e1188a Darrick J. Wong    2024-03-12  413   * This function loads data from a merkle tree.
7e233393e1188a Darrick J. Wong    2024-03-12  414   */
7e233393e1188a Darrick J. Wong    2024-03-12  415  int fsverity_read_merkle_tree_block(struct inode *inode,
7e233393e1188a Darrick J. Wong    2024-03-12  416  				    const struct merkle_tree_params *params,
9f776a322d851c Darrick J. Wong    2024-03-08  417  				    int level, u64 pos, unsigned long ra_bytes,
057a4e47b75182 Andrey Albershteyn 2024-02-28  418  				    struct fsverity_blockbuf *block)
057a4e47b75182 Andrey Albershteyn 2024-02-28 @419  {
7e233393e1188a Darrick J. Wong    2024-03-12  420  	const struct fsverity_operations *vops = inode->i_sb->s_vop;
7e233393e1188a Darrick J. Wong    2024-03-12  421  	unsigned long page_idx;
7e233393e1188a Darrick J. Wong    2024-03-12  422  	struct page *page;
7e233393e1188a Darrick J. Wong    2024-03-12  423  	unsigned long index;
7e233393e1188a Darrick J. Wong    2024-03-12  424  	unsigned int offset_in_page;
057a4e47b75182 Andrey Albershteyn 2024-02-28  425  
9f776a322d851c Darrick J. Wong    2024-03-08  426  	block->offset = pos;
9f776a322d851c Darrick J. Wong    2024-03-08  427  	block->size = params->block_size;
9f776a322d851c Darrick J. Wong    2024-03-08  428  
9f776a322d851c Darrick J. Wong    2024-03-08  429  	if (fsverity_caches_blocks(inode)) {
9f776a322d851c Darrick J. Wong    2024-03-08  430  		struct fsverity_readmerkle req = {
9f776a322d851c Darrick J. Wong    2024-03-08  431  			.inode = inode,
9f776a322d851c Darrick J. Wong    2024-03-08  432  			.level = level,
9f776a322d851c Darrick J. Wong    2024-03-08  433  			.num_levels = params->num_levels,
9f776a322d851c Darrick J. Wong    2024-03-08  434  			.log_blocksize = params->log_blocksize,
9f776a322d851c Darrick J. Wong    2024-03-08  435  			.ra_bytes = ra_bytes,
9f776a322d851c Darrick J. Wong    2024-03-08  436  		};
9f776a322d851c Darrick J. Wong    2024-03-08  437  
9f776a322d851c Darrick J. Wong    2024-03-08  438  		return vops->read_merkle_tree_block(&req, block);
9f776a322d851c Darrick J. Wong    2024-03-08  439  	}
7e233393e1188a Darrick J. Wong    2024-03-12  440  
7e233393e1188a Darrick J. Wong    2024-03-12  441  	index = pos >> params->log_blocksize;
7e233393e1188a Darrick J. Wong    2024-03-12  442  	page_idx = round_down(index, params->blocks_per_page);
7e233393e1188a Darrick J. Wong    2024-03-12  443  	offset_in_page = pos & ~PAGE_MASK;
7e233393e1188a Darrick J. Wong    2024-03-12  444  
7e233393e1188a Darrick J. Wong    2024-03-12  445  	page = vops->read_merkle_tree_page(inode, page_idx,
7e233393e1188a Darrick J. Wong    2024-03-12  446  			ra_bytes >> PAGE_SHIFT);
7e233393e1188a Darrick J. Wong    2024-03-12  447  	if (IS_ERR(page))
7e233393e1188a Darrick J. Wong    2024-03-12  448  		return PTR_ERR(page);
7e233393e1188a Darrick J. Wong    2024-03-12  449  
7e233393e1188a Darrick J. Wong    2024-03-12  450  	block->kaddr = kmap_local_page(page) + offset_in_page;
7e233393e1188a Darrick J. Wong    2024-03-12  451  	block->context = page;
7e233393e1188a Darrick J. Wong    2024-03-12  452  	return 0;
7e233393e1188a Darrick J. Wong    2024-03-12  453  }
7e233393e1188a Darrick J. Wong    2024-03-12  454  

:::::: The code at line 419 was first introduced by commit
:::::: 057a4e47b751820ed58aca21323c229c7b9322ec fsverity: support block-based Merkle tree caching

:::::: TO: Andrey Albershteyn <aalbersh@redhat.com>
:::::: CC: Darrick J. Wong <djwong@kernel.org>

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