force_successful_syscall_return
#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
#define force_successful_syscall_return() (current_pt_regs()->orig_r2 = -1)
#define force_successful_syscall_return() \
#define force_successful_syscall_return() set_thread_noerror(1)
#define force_successful_syscall_return() do { } while (0)