_ry 70 arch/s390/boot/mem_detect.c register unsigned long _ry asm("4") = 0x10; /* storage configuration */ _ry 87 arch/s390/boot/mem_detect.c [rc] "+&d" (rc), [ry] "+d" (_ry) _ry 91 arch/s390/boot/mem_detect.c return rc == 0 ? _ry : -1;