--- if_em.c.orig	2022-05-13 15:26:41.055245000 -0700
+++ if_em.c	2022-05-13 15:27:11.443359000 -0700
@@ -379,8 +379,12 @@ static driver_t em_driver = {
 	"em", em_methods, sizeof(struct adapter),
 };
 
+#if __FreeBSD_version >= 1400058
+DRIVER_MODULE(em, pci, em_driver, 0, 0);
+#else
 devclass_t em_devclass;
 DRIVER_MODULE(em, pci, em_driver, em_devclass, 0, 0);
+#endif
 MODULE_DEPEND(em, pci, 1, 1, 1);
 MODULE_DEPEND(em, ether, 1, 1, 1);
 
--- if_lem.c.orig	2022-05-13 15:26:44.154782000 -0700
+++ if_lem.c	2022-05-13 15:27:38.402591000 -0700
@@ -289,8 +289,12 @@ static driver_t lem_driver = {
 	"em", lem_methods, sizeof(struct adapter),
 };
 
+#if __FreeBSD_version >= 1400058
+DRIVER_MODULE(lem, pci, lem_driver, 0, 0);
+#else
 extern devclass_t em_devclass;
 DRIVER_MODULE(lem, pci, lem_driver, em_devclass, 0, 0);
+#endif
 MODULE_DEPEND(lem, pci, 1, 1, 1);
 MODULE_DEPEND(lem, ether, 1, 1, 1);