FIXUP_SYSCTL_VALUE 601 tools/testing/selftests/bpf/test_sysctl.c BPF_LD_IMM64(BPF_REG_8, FIXUP_SYSCTL_VALUE), FIXUP_SYSCTL_VALUE 819 tools/testing/selftests/bpf/test_sysctl.c BPF_LD_IMM64(BPF_REG_0, FIXUP_SYSCTL_VALUE),