int run_diff_index(struct rev_info *revs, unsigned int option);
int do_diff_cache(const struct object_id *, struct diff_options *);
-int diff_flush_patch_id(struct diff_options *, struct object_id *, int, int);
+int diff_flush_patch_id(struct diff_options *, struct object_id *, int);
void flush_one_hunk(struct object_id *result, git_hash_ctx *ctx);
int diff_result_code(struct diff_options *, int);