18 				   const struct merkle_tree_params *params,  in build_merkle_tree_level()  argument
28 	if (WARN_ON(params->block_size != PAGE_SIZE)) /* checked earlier too */  in build_merkle_tree_level()
31 	if (level < params->num_levels) {  in build_merkle_tree_level()
32 		dst_block_num = params->level_start[level];  in build_merkle_tree_level()
59 					params->level_start[level - 1] + i);  in build_merkle_tree_level()
64 					     err, params->level_start[level - 1] + i);  in build_merkle_tree_level()
69 		err = fsverity_hash_page(params, inode, req, src_page,  in build_merkle_tree_level()
74 		pending_size += params->digest_size;  in build_merkle_tree_level()
76 		if (level == params->num_levels) /* Root hash? */  in build_merkle_tree_level()
79 		if (pending_size + params->digest_size > params->block_size ||  in build_merkle_tree_level()
83 			       params->block_size - pending_size);  in build_merkle_tree_level()
87 					params->log_blocksize);  in build_merkle_tree_level()
114 			     const struct merkle_tree_params *params,  in build_merkle_tree()  argument
125 		memset(root_hash, 0, params->digest_size);  in build_merkle_tree()
129 	pending_hashes = kmalloc(params->block_size, GFP_KERNEL);  in build_merkle_tree()
130 	req = ahash_request_alloc(params->hash_alg->tfm, GFP_KERNEL);  in build_merkle_tree()
139 	blocks = (inode->i_size + params->block_size - 1) >>  in build_merkle_tree()
140 		 params->log_blocksize;  in build_merkle_tree()
141 	for (level = 0; level <= params->num_levels; level++) {  in build_merkle_tree()
142 		err = build_merkle_tree_level(inode, level, blocks, params,  in build_merkle_tree()
146 		blocks = (blocks + params->hashes_per_block - 1) >>  in build_merkle_tree()
147 			 params->log_arity;  in build_merkle_tree()
149 	memcpy(root_hash, pending_hashes, params->digest_size);  in build_merkle_tree()
162 	struct merkle_tree_params params = { };  in enable_verity()  local
199 	err = fsverity_init_merkle_tree_params(&params, inode,  in enable_verity()
230 	err = build_merkle_tree(inode, &params, desc->root_hash);  in enable_verity()
236 		 params.hash_alg->name, params.digest_size, desc->root_hash);  in enable_verity()
260 	err = vops->end_enable_verity(filp, desc, desc_size, params.tree_size);  in enable_verity()
280 	kfree(params.hashstate);  in enable_verity()
286 	(void)vops->end_enable_verity(filp, NULL, 0, params.tree_size);  in enable_verity()