sierra/mm-broadband-modem-sierra.c: In function ‘modem_time_load_network_time’:
sierra/mm-broadband-modem-sierra.c:1733:5: error: enumeration value ‘TIME_METHOD_UNKNOWN’ not handled in switch [-Werror=switch-enum]
1733 | switch (MM_BROADBAND_MODEM_SIERRA (self)->priv->time_method) {
| ^~~~~~