safe_zcr 1950 arch/arm64/kernel/cpufeature.c u64 safe_zcr = read_sanitised_ftr_reg(SYS_ZCR_EL1); safe_zcr 1953 arch/arm64/kernel/cpufeature.c unsigned int safe_len = safe_zcr & ZCR_ELx_LEN_MASK;