io_uring_register takes 4 args
@@ -47,7 +47,8 @@ struct io_uring {
extern int io_uring_setup(unsigned entries, struct io_uring_params *p);
extern int io_uring_enter(unsigned fd, unsigned to_submit,
unsigned min_complete, unsigned flags);
-extern int io_uring_register(int fd, unsigned int opcode, void *arg);
+extern int io_uring_register(int fd, unsigned int opcode, void *arg,
+ unsigned int nr_args);
/*
* Library interface
