ESR_ELx_AR_SHIFT 123 arch/arm64/include/asm/esr.h #define ESR_ELx_AR (UL(1) << ESR_ELx_AR_SHIFT) ESR_ELx_AR_SHIFT 75 arch/arm64/mm/fault.c (esr & ESR_ELx_AR) >> ESR_ELx_AR_SHIFT);