93     struct sparse_hash_ctx *ctx = (struct sparse_hash_ctx *)priv;  in hash_chunk()  local
94     assert(len % ctx->block_size == 0);  in hash_chunk()
97         hash_blocks(ctx->md, (const unsigned char *)data, len,  in hash_chunk()
98                     ctx->hashes, &s,  in hash_chunk()
99                     ctx->salt, ctx->salt_size, ctx->block_size);  in hash_chunk()
100         ctx->hashes += s;  in hash_chunk()
102         for (size_t i = 0; i < (size_t)len; i += ctx->block_size) {  in hash_chunk()
103             memcpy(ctx->hashes, ctx->zero_block_hash, ctx->hash_size);  in hash_chunk()
104             ctx->hashes += ctx->hash_size;  in hash_chunk()
316     struct sparse_hash_ctx ctx;  in main()  local
317     ctx.hashes = verity_tree_levels[0];  in main()
318     ctx.salt = salt;  in main()
319     ctx.salt_size = salt_size;  in main()
320     ctx.hash_size = hash_size;  in main()
321     ctx.block_size = block_size;  in main()
322     ctx.zero_block_hash = zero_block_hash;  in main()
323     ctx.md = md;  in main()
325     sparse_file_callback(file, false, false, hash_chunk, &ctx);  in main()