to_instance
instance = to_instance(kobj);
struct edac_device_instance *instance = to_instance(kobj);
struct edac_device_instance *instance = to_instance(kobj);
struct edac_pci_ctl_info *pci = to_instance(kobj);
struct edac_pci_ctl_info *pci = to_instance(kobj);
pci = to_instance(kobj);
inst = to_instance(core, pkt->shdr.session_id);