clear_cpu_cap
#define clear_cpu_bug(c, bit) clear_cpu_cap(c, (bit))
extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit);
clear_cpu_cap(&boot_cpu_data, X86_FEATURE_UP);
clear_cpu_cap(&cpu_data(0), X86_FEATURE_UP);
clear_cpu_cap(c, X86_FEATURE_V_VMSAVE_VMLOAD);
clear_cpu_cap(c, X86_FEATURE_RDSEED);
clear_cpu_cap(c, X86_FEATURE_MCE);
clear_cpu_cap(c, X86_FEATURE_SVM);
clear_cpu_cap(c, X86_FEATURE_APIC_MSRS_FENCE);
clear_cpu_cap(c, X86_FEATURE_APIC);
clear_cpu_cap(c, X86_FEATURE_LAHF_LM);
clear_cpu_cap(c, X86_FEATURE_RDRAND);
clear_cpu_cap(c, X86_FEATURE_XSAVES);
clear_cpu_cap(c, X86_FEATURE_IRPERF);
clear_cpu_cap(c, X86_FEATURE_RDSEED);
clear_cpu_cap(c, X86_FEATURE_INVLPGB);
clear_cpu_cap(c, X86_FEATURE_TSC);
clear_cpu_cap(c, X86_FEATURE_VIRT_SSBD);
clear_cpu_cap(c, X86_FEATURE_PN);
clear_cpu_cap(c, df->feature);
clear_cpu_cap(&boot_cpu_data, feature);
clear_cpu_cap(c, 1*32+24);
clear_cpu_cap(c, X86_FEATURE_VMX);
clear_cpu_cap(c, X86_FEATURE_SGX);
clear_cpu_cap(c, X86_FEATURE_VMX);
clear_cpu_cap(c, X86_FEATURE_SGX);
clear_cpu_cap(c, X86_FEATURE_SGX);
clear_cpu_cap(c, X86_FEATURE_SGX_LC);
clear_cpu_cap(c, X86_FEATURE_SVM);
clear_cpu_cap(c, X86_FEATURE_APIC_MSRS_FENCE);
clear_cpu_cap(c, X86_FEATURE_TME);
clear_cpu_cap(c, X86_FEATURE_PSE);
clear_cpu_cap(c, X86_FEATURE_PAT);
clear_cpu_cap(c, X86_FEATURE_SEP);
clear_cpu_cap(c, X86_FEATURE_RDRAND);
clear_cpu_cap(c, X86_FEATURE_RDSEED);