THERMAL_GENL_SAMPLING_GROUP
genlmsg_multicast(&thermal_genl_family, skb, 0, THERMAL_GENL_SAMPLING_GROUP, GFP_KERNEL);
[THERMAL_GENL_SAMPLING_GROUP] = { .name = THERMAL_GENL_SAMPLING_GROUP_NAME, },
if (!thermal_group_has_listeners(THERMAL_GENL_SAMPLING_GROUP))