cpuid_feature_extract_field_width
return cpuid_feature_extract_field_width(features, field, 4, sign);
return (s64)cpuid_feature_extract_field_width(val, ftrp->shift, ftrp->width, ftrp->sign);
val = cpuid_feature_extract_field_width(reg, entry->field_pos,
min = cpuid_feature_extract_field_width(tmp, entry->field_pos,
max = cpuid_feature_extract_field_width(tmp, entry->field_pos,