calc_offset
fixup.start_off = calc_offset(&fixup, ftr_fixup_test1 + 1);
fixup.end_off = calc_offset(&fixup, ftr_fixup_test1 + 2);
fixup.start_off = calc_offset(&fixup, ftr_fixup_test2 + 1);
fixup.end_off = calc_offset(&fixup, ftr_fixup_test2 + 2);
fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test2_alt);
fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test2_alt + 1);
fixup.start_off = calc_offset(&fixup, ftr_fixup_test3 + 1);
fixup.end_off = calc_offset(&fixup, ftr_fixup_test3 + 2);
fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test3_alt);
fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test3_alt + 2);
fixup.start_off = calc_offset(&fixup, ftr_fixup_test4 + 1);
fixup.end_off = calc_offset(&fixup, ftr_fixup_test4 + 5);
fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test4_alt);
fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test4_alt + 2);
fixup.start_off = calc_offset(&fixup, ftr_fixup_prefix1 + 1);
fixup.end_off = calc_offset(&fixup, ftr_fixup_prefix1 + 3);
fixup.start_off = calc_offset(&fixup, ftr_fixup_prefix2 + 1);
fixup.end_off = calc_offset(&fixup, ftr_fixup_prefix2 + 3);
fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_prefix2_alt);
fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_prefix2_alt + 2);
fixup.start_off = calc_offset(&fixup, ftr_fixup_prefix3 + 1);
fixup.end_off = calc_offset(&fixup, ftr_fixup_prefix3 + 4);
fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_prefix3_alt);
fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_prefix3_alt + 3);
calc_offset(screen_width, frame_width,
__u64 off = calc_offset(is_ipv6, is_icmp);
__u64 off = calc_offset(is_ipv6, is_icmp);