[root@Sailfish nemo]# modprobe hci_smd
modprobe: ERROR: could not insert 'hci_smd': Unknown symbol in module, or unknown parameter (see dmesg)
[root@Sailfish nemo]# dmesg -c
[  427.139099] bluetooth: Unknown symbol backport_dependency_symbol (err 0)
[  427.139465] bluetooth: Unknown symbol bit_wait (err 0)
[  427.139953] bluetooth: Unknown symbol backport_wait_woken (err 0)
[  427.140258] bluetooth: Unknown symbol woken_wake_function (err 0)
[  427.140380] bluetooth: Unknown symbol backport_memzero_explicit (err 0)