Prefer NULL over 0 for pointers

79 files changed, 88 insertions, 89 deletions

diff --git a/share/examples/kld/dyn_sysctl/dyn_sysctl.c b/share/examples/kld/dyn_sysctl/dyn_sysctl.c
index 684f58d..743f34b 100644
--- a/share/examples/kld/dyn_sysctl/dyn_sysctl.c
+++ b/share/examples/kld/dyn_sysctl/dyn_sysctl.c
@@ -163,7 +163,7 @@ load(module_t mod, int cmd, void *arg)
 static moduledata_t mod_data = {
 	"dyn_sysctl",
 	load,
-	0
+	NULL
 };
 
 DECLARE_MODULE(dyn_sysctl, mod_data, SI_SUB_EXEC, SI_ORDER_ANY);
diff --git a/share/examples/kld/firmware/fwconsumer/fw_consumer.c b/share/examples/kld/firmware/fwconsumer/fw_consumer.c
index 6a51737..421dcc6 100644
--- a/share/examples/kld/firmware/fwconsumer/fw_consumer.c
+++ b/share/examples/kld/firmware/fwconsumer/fw_consumer.c
@@ -71,7 +71,7 @@ fw_consumer_modevent(module_t mod, int type, void *unused)
 static moduledata_t fw_consumer_mod = {
 	"fw_consumer",
 	fw_consumer_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(fw_consumer, fw_consumer_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
 MODULE_VERSION(fw_consumer, 1);
diff --git a/share/man/man9/module.9 b/share/man/man9/module.9
index 055dab9..bd072a9 100644
--- a/share/man/man9/module.9
+++ b/share/man/man9/module.9
@@ -99,7 +99,7 @@ static int foo_handler(module_t mod, int /*modeventtype_t*/ what,
 static moduledata_t mod_data= {
         "foo",
         foo_handler,
-        0
+	NULL
 };
 
 MODULE_VERSION(foo, 1);
diff --git a/sys/amd64/linux32/linux32_sysvec.c b/sys/amd64/linux32/linux32_sysvec.c
index 5afc9ce..c2043f6 100644
--- a/sys/amd64/linux32/linux32_sysvec.c
+++ b/sys/amd64/linux32/linux32_sysvec.c
@@ -1198,7 +1198,7 @@ linux_elf_modevent(module_t mod, int type, void *data)
 static moduledata_t linux_elf_mod = {
 	"linuxelf",
 	linux_elf_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE_TIED(linuxelf, linux_elf_mod, SI_SUB_EXEC, SI_ORDER_ANY);
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
index 1b4cb78..152f85b 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
@@ -5526,7 +5526,7 @@ zfs_modevent(module_t mod, int type, void *unused __unused)
 static moduledata_t zfs_mod = {
 	"zfsctrl",
 	zfs_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(zfsctrl, zfs_mod, SI_SUB_VFS, SI_ORDER_ANY);
 MODULE_DEPEND(zfsctrl, opensolaris, 1, 1, 1);
diff --git a/sys/compat/svr4/svr4_sysvec.c b/sys/compat/svr4/svr4_sysvec.c
index 561a838..76c0e29 100644
--- a/sys/compat/svr4/svr4_sysvec.c
+++ b/sys/compat/svr4/svr4_sysvec.c
@@ -308,7 +308,7 @@ svr4_elf_modevent(module_t mod, int type, void *data)
 static moduledata_t svr4_elf_mod = {
 	"svr4elf",
 	svr4_elf_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE_TIED(svr4elf, svr4_elf_mod, SI_SUB_EXEC, SI_ORDER_ANY);
 MODULE_DEPEND(svr4elf, streams, 1, 1, 1);
diff --git a/sys/contrib/ipfilter/netinet/mlfk_ipl.c b/sys/contrib/ipfilter/netinet/mlfk_ipl.c
index 6dcb821..709c613b 100644
--- a/sys/contrib/ipfilter/netinet/mlfk_ipl.c
+++ b/sys/contrib/ipfilter/netinet/mlfk_ipl.c
@@ -275,7 +275,7 @@ ipf_modunload()
 static moduledata_t ipfiltermod = {
 	"ipfilter",
 	ipfilter_modevent,
-	0
+	NULL
 };
 
 
diff --git a/sys/contrib/rdma/rdma_addr.c b/sys/contrib/rdma/rdma_addr.c
index b1717c0..4d43e4b 100644
--- a/sys/contrib/rdma/rdma_addr.c
+++ b/sys/contrib/rdma/rdma_addr.c
@@ -407,7 +407,7 @@ addr_load(module_t mod, int cmd, void *arg)
 static moduledata_t mod_data = {
 	"rdma_addr",
 	addr_load,
-	0
+	NULL
 };
 
 MODULE_VERSION(rdma_addr, 1);
diff --git a/sys/contrib/rdma/rdma_cma.c b/sys/contrib/rdma/rdma_cma.c
index ea3d501..0806094 100644
--- a/sys/contrib/rdma/rdma_cma.c
+++ b/sys/contrib/rdma/rdma_cma.c
@@ -2990,7 +2990,7 @@ cma_load(module_t mod, int cmd, void *arg)
 static moduledata_t mod_data = {
 	"rdma_cma",
 	cma_load,
-	0
+	NULL
 };
 
 MODULE_VERSION(rdma_cma, 1);
diff --git a/sys/contrib/rdma/rdma_device.c b/sys/contrib/rdma/rdma_device.c
index 53cf31f..a96aa68 100644
--- a/sys/contrib/rdma/rdma_device.c
+++ b/sys/contrib/rdma/rdma_device.c
@@ -769,7 +769,7 @@ rdma_core_load(module_t mod, int cmd, void *arg)
 static moduledata_t mod_data = {
 	"rdma_core",
 	rdma_core_load,
-	0
+	NULL
 };
 
 MODULE_VERSION(rdma_core, 1);
diff --git a/sys/contrib/rdma/rdma_iwcm.c b/sys/contrib/rdma/rdma_iwcm.c
index 916abcd..a20bf95 100644
--- a/sys/contrib/rdma/rdma_iwcm.c
+++ b/sys/contrib/rdma/rdma_iwcm.c
@@ -1078,7 +1078,7 @@ iw_cm_load(module_t mod, int cmd, void *arg)
 static moduledata_t mod_data = {
 	"rdma_iwcm",
 	iw_cm_load,
-	0
+	NULL
 };
 
 MODULE_VERSION(rdma_iwcm, 1);
diff --git a/sys/crypto/rc4/rc4.c b/sys/crypto/rc4/rc4.c
index dbdbd7a..c2d5f96 100644
--- a/sys/crypto/rc4/rc4.c
+++ b/sys/crypto/rc4/rc4.c
@@ -122,7 +122,7 @@ rc4_modevent(module_t mod, int type, void *unused)
 static moduledata_t rc4_mod = {
 	"rc4",
 	rc4_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(rc4, rc4_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(rc4, 1);
diff --git a/sys/dev/bktr/bktr_mem.c b/sys/dev/bktr/bktr_mem.c
index 77c5971..e4e5487 100644
--- a/sys/dev/bktr/bktr_mem.c
+++ b/sys/dev/bktr/bktr_mem.c
@@ -182,7 +182,7 @@ bktr_retrieve_address(int unit, int type)
 static moduledata_t bktr_mem_mod = {
 	"bktr_mem",
 	bktr_mem_modevent,
-	0
+	NULL
 };
 
 /*
diff --git a/sys/dev/cxgb/cxgb_t3fw.c b/sys/dev/cxgb/cxgb_t3fw.c
index 44a4103..fcfb5de 100644
--- a/sys/dev/cxgb/cxgb_t3fw.c
+++ b/sys/dev/cxgb/cxgb_t3fw.c
@@ -43,7 +43,7 @@ cxgb_t3fw_modevent(module_t mod, int type, void *unused)
 static moduledata_t cxgb_t3fw_mod = {
         "cxgb_t3fw",
         cxgb_t3fw_modevent,
-        0
+	NULL 
 };
 DECLARE_MODULE(cxgb_t3fw, cxgb_t3fw_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(cxgb_t3fw, 1);
@@ -76,7 +76,7 @@ cxgb_t3b_protocol_sram_modevent(module_t mod, int type, void *unused)
 static moduledata_t cxgb_t3b_protocol_sram_mod = {
         "cxgb_t3b_protocol_sram",
         cxgb_t3b_protocol_sram_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(cxgb_t3b_protocol_sram, cxgb_t3b_protocol_sram_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(cxgb_t3b_protocol_sram, 1);
@@ -109,7 +109,7 @@ cxgb_t3b_tp_eeprom_modevent(module_t mod, int type, void *unused)
 static moduledata_t cxgb_t3b_tp_eeprom_mod = {
         "cxgb_t3b_tp_eeprom",
         cxgb_t3b_tp_eeprom_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(cxgb_t3b_tp_eeprom, cxgb_t3b_tp_eeprom_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(cxgb_t3b_tp_eeprom, 1);
@@ -142,7 +142,7 @@ cxgb_t3c_protocol_sram_modevent(module_t mod, int type, void *unused)
 static moduledata_t cxgb_t3c_protocol_sram_mod = {
         "cxgb_t3c_protocol_sram",
         cxgb_t3c_protocol_sram_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(cxgb_t3c_protocol_sram, cxgb_t3c_protocol_sram_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(cxgb_t3c_protocol_sram, 1);
@@ -175,7 +175,7 @@ cxgb_t3c_tp_eeprom_modevent(module_t mod, int type, void *unused)
 static moduledata_t cxgb_t3c_tp_eeprom_mod = {
         "cxgb_t3c_tp_eeprom",
         cxgb_t3c_tp_eeprom_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(cxgb_t3c_tp_eeprom, cxgb_t3c_tp_eeprom_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(cxgb_t3c_tp_eeprom, 1);
diff --git a/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb.c b/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb.c
index c8652a0..cbdb130 100644
--- a/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb.c
+++ b/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb.c
@@ -290,7 +290,7 @@ iwch_modevent(module_t mod, int cmd, void *arg)
 static moduledata_t iwch_mod_data = {
 	"iw_cxgb",
 	iwch_modevent,
-	0
+	NULL
 };
 
 MODULE_VERSION(iw_cxgb, 1);
diff --git a/sys/dev/cxgb/ulp/tom/cxgb_tom.c b/sys/dev/cxgb/ulp/tom/cxgb_tom.c
index 8f0dd25..bd70b06 100644
--- a/sys/dev/cxgb/ulp/tom/cxgb_tom.c
+++ b/sys/dev/cxgb/ulp/tom/cxgb_tom.c
@@ -387,7 +387,7 @@ t3_tom_modevent(module_t mod, int cmd, void *arg)
 static moduledata_t t3_tom_moddata= {
 	"t3_tom",
 	t3_tom_modevent,
-	0
+	NULL
 };
 
 MODULE_VERSION(t3_tom, 1);
diff --git a/sys/dev/cxgbe/tom/t4_tom.c b/sys/dev/cxgbe/tom/t4_tom.c
index 330172d..5d47ad3 100644
--- a/sys/dev/cxgbe/tom/t4_tom.c
+++ b/sys/dev/cxgbe/tom/t4_tom.c
@@ -768,7 +768,7 @@ t4_tom_modevent(module_t mod, int cmd, void *arg)
 static moduledata_t t4_tom_moddata= {
 	"t4_tom",
 	t4_tom_modevent,
-	0
+	NULL
 };
 
 MODULE_VERSION(t4_tom, 1);
diff --git a/sys/dev/drm2/drm_drv.c b/sys/dev/drm2/drm_drv.c
index 33e50ea..efffcbb 100644
--- a/sys/dev/drm2/drm_drv.c
+++ b/sys/dev/drm2/drm_drv.c
@@ -74,7 +74,7 @@ drm_modevent(module_t mod, int type, void *data)
 static moduledata_t drm_mod = {
 	"drmn",
 	drm_modevent,
-	0
+	NULL
 }; 
 DECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(drmn, 1);
diff --git a/sys/dev/iscsi/initiator/iscsi.c b/sys/dev/iscsi/initiator/iscsi.c
index a93a685..899501a 100644
--- a/sys/dev/iscsi/initiator/iscsi.c
+++ b/sys/dev/iscsi/initiator/iscsi.c
@@ -855,9 +855,9 @@ iscsi_modevent(module_t mod, int what, void *arg)
 }
 
 moduledata_t iscsi_mod = {
-         "iscsi",
-         (modeventhand_t) iscsi_modevent,
-         0
+	"iscsi",
+	(modeventhand_t) iscsi_modevent,
+	NULL
 };
 
 #ifdef ISCSI_ROOT
diff --git a/sys/dev/mxge/mxge_eth_z8e.c b/sys/dev/mxge/mxge_eth_z8e.c
index 570f654..497fd3b 100644
--- a/sys/dev/mxge/mxge_eth_z8e.c
+++ b/sys/dev/mxge/mxge_eth_z8e.c
@@ -39,7 +39,7 @@ mxge_eth_z8e_fw_modevent(module_t mod, int type, void *unused)
 static moduledata_t mxge_eth_z8e_fw_mod = {
         "mxge_eth_z8e_fw",
         mxge_eth_z8e_fw_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(mxge_eth_z8e_fw, mxge_eth_z8e_fw_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(mxge_eth_z8e_fw, 1);
diff --git a/sys/dev/mxge/mxge_ethp_z8e.c b/sys/dev/mxge/mxge_ethp_z8e.c
index 8d0e31b..d41a080 100644
--- a/sys/dev/mxge/mxge_ethp_z8e.c
+++ b/sys/dev/mxge/mxge_ethp_z8e.c
@@ -39,7 +39,7 @@ mxge_ethp_z8e_fw_modevent(module_t mod, int type, void *unused)
 static moduledata_t mxge_ethp_z8e_fw_mod = {
         "mxge_ethp_z8e_fw",
         mxge_ethp_z8e_fw_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(mxge_ethp_z8e_fw, mxge_ethp_z8e_fw_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(mxge_ethp_z8e_fw, 1);
diff --git a/sys/dev/mxge/mxge_rss_eth_z8e.c b/sys/dev/mxge/mxge_rss_eth_z8e.c
index d31907a..d41ab4a 100644
--- a/sys/dev/mxge/mxge_rss_eth_z8e.c
+++ b/sys/dev/mxge/mxge_rss_eth_z8e.c
@@ -39,7 +39,7 @@ mxge_rss_eth_z8e_fw_modevent(module_t mod, int type, void *unused)
 static moduledata_t mxge_rss_eth_z8e_fw_mod = {
         "mxge_rss_eth_z8e_fw",
         mxge_rss_eth_z8e_fw_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(mxge_rss_eth_z8e_fw, mxge_rss_eth_z8e_fw_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(mxge_rss_eth_z8e_fw, 1);
diff --git a/sys/dev/mxge/mxge_rss_ethp_z8e.c b/sys/dev/mxge/mxge_rss_ethp_z8e.c
index ca7be0e..84cfe23 100644
--- a/sys/dev/mxge/mxge_rss_ethp_z8e.c
+++ b/sys/dev/mxge/mxge_rss_ethp_z8e.c
@@ -39,7 +39,7 @@ mxge_rss_ethp_z8e_fw_modevent(module_t mod, int type, void *unused)
 static moduledata_t mxge_rss_ethp_z8e_fw_mod = {
         "mxge_rss_ethp_z8e_fw",
         mxge_rss_ethp_z8e_fw_modevent,
-        0
+	NULL
 };
 DECLARE_MODULE(mxge_rss_ethp_z8e_fw, mxge_rss_ethp_z8e_fw_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(mxge_rss_ethp_z8e_fw, 1);
diff --git a/sys/dev/nvd/nvd.c b/sys/dev/nvd/nvd.c
index 2017d79..11239ef 100644
--- a/sys/dev/nvd/nvd.c
+++ b/sys/dev/nvd/nvd.c
@@ -93,7 +93,7 @@ static int nvd_modevent(module_t mod, int type, void *arg)
 moduledata_t nvd_mod = {
 	"nvd",
 	(modeventhand_t)nvd_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(nvd, nvd_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
diff --git a/sys/dev/nvme/nvme.c b/sys/dev/nvme/nvme.c
index edc536e..350e04a 100644
--- a/sys/dev/nvme/nvme.c
+++ b/sys/dev/nvme/nvme.c
@@ -177,7 +177,7 @@ nvme_modevent(module_t mod, int type, void *arg)
 moduledata_t nvme_mod = {
 	"nvme",
 	(modeventhand_t)nvme_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(nvme, nvme_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
diff --git a/sys/dev/rndtest/rndtest.c b/sys/dev/rndtest/rndtest.c
index 4e42aa8..1803e0d 100644
--- a/sys/dev/rndtest/rndtest.c
+++ b/sys/dev/rndtest/rndtest.c
@@ -402,7 +402,7 @@ rndtest_modevent(module_t mod, int type, void *unused)
 static moduledata_t rndtest_mod = {
 	"rndtest",
 	rndtest_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(rndtest, rndtest_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
 MODULE_VERSION(rndtest, 1);
diff --git a/sys/dev/streams/streams.c b/sys/dev/streams/streams.c
index ad2817f..73be7ff 100644
--- a/sys/dev/streams/streams.c
+++ b/sys/dev/streams/streams.c
@@ -171,7 +171,7 @@ streams_modevent(module_t mod, int type, void *unused)
 static moduledata_t streams_mod = {
 	"streams",
 	streams_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(streams, streams_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
 MODULE_VERSION(streams, 1);
diff --git a/sys/dev/tdfx/tdfx_linux.c b/sys/dev/tdfx/tdfx_linux.c
index 0b769f0..e3d2197 100644
--- a/sys/dev/tdfx/tdfx_linux.c
+++ b/sys/dev/tdfx/tdfx_linux.c
@@ -78,7 +78,7 @@ tdfx_linux_modevent(struct module *mod __unused, int what, void *arg __unused)
 static moduledata_t tdfx_linux_mod = {
 	"tdfx_linux",
 	tdfx_linux_modevent,
-	0
+	NULL
 };
 
 /* As in SYSCALL_MODULE */
diff --git a/sys/dev/usb/net/usb_ethernet.c b/sys/dev/usb/net/usb_ethernet.c
index 2a7bddf..6857bac 100644
--- a/sys/dev/usb/net/usb_ethernet.c
+++ b/sys/dev/usb/net/usb_ethernet.c
@@ -549,7 +549,7 @@ uether_modevent(module_t mod, int type, void *data)
 static moduledata_t uether_mod = {
 	"uether",
 	uether_modevent,
-	0
+	NULL
 };
 
 struct mbuf *
diff --git a/sys/dev/utopia/utopia.c b/sys/dev/utopia/utopia.c
index a4e7331..b9c68f3 100644
--- a/sys/dev/utopia/utopia.c
+++ b/sys/dev/utopia/utopia.c
@@ -668,7 +668,7 @@ utopia_mod_init(module_t mod, int what, void *arg)
 static moduledata_t utopia_mod = {
         "utopia",
         utopia_mod_init,
-        0
+	NULL
 };
                 
 DECLARE_MODULE(utopia, utopia_mod, SI_SUB_INIT_IF, SI_ORDER_ANY);
diff --git a/sys/dev/virtio/virtio.c b/sys/dev/virtio/virtio.c
index 1cac3c7..bd893a2 100644
--- a/sys/dev/virtio/virtio.c
+++ b/sys/dev/virtio/virtio.c
@@ -269,7 +269,7 @@ virtio_modevent(module_t mod, int type, void *unused)
 static moduledata_t virtio_mod = {
 	"virtio",
 	virtio_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(virtio, virtio_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
diff --git a/sys/i386/ibcs2/ibcs2_sysvec.c b/sys/i386/ibcs2/ibcs2_sysvec.c
index 5b6f680..6a99bbc 100644
--- a/sys/i386/ibcs2/ibcs2_sysvec.c
+++ b/sys/i386/ibcs2/ibcs2_sysvec.c
@@ -133,6 +133,6 @@ ibcs2_modevent(module_t mod, int type, void *unused)
 static moduledata_t ibcs2_mod = {
 	"ibcs2",
 	ibcs2_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE_TIED(ibcs2, ibcs2_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/i386/isa/elink.c b/sys/i386/isa/elink.c
index 5fbfd36..11bf6ff 100644
--- a/sys/i386/isa/elink.c
+++ b/sys/i386/isa/elink.c
@@ -87,7 +87,7 @@ elink_idseq(u_char p)
 static moduledata_t elink_mod = {
 	"elink",/* module name */
 	NULL,	/* event handler */
-	0	/* extra data */
+	NULL	/* extra data */
 };
 
 DECLARE_MODULE(elink, elink_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/i386/linux/linux_sysvec.c b/sys/i386/linux/linux_sysvec.c
index d4e23e1..39acb02 100644
--- a/sys/i386/linux/linux_sysvec.c
+++ b/sys/i386/linux/linux_sysvec.c
@@ -1173,7 +1173,7 @@ linux_elf_modevent(module_t mod, int type, void *data)
 static moduledata_t linux_elf_mod = {
 	"linuxelf",
 	linux_elf_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE_TIED(linuxelf, linux_elf_mod, SI_SUB_EXEC, SI_ORDER_ANY);
diff --git a/sys/net/bridgestp.c b/sys/net/bridgestp.c
index 15d4ee9..79bae53 100644
--- a/sys/net/bridgestp.c
+++ b/sys/net/bridgestp.c
@@ -2124,7 +2124,7 @@ bstp_modevent(module_t mod, int type, void *data)
 static moduledata_t bstp_mod = {
 	"bridgestp",
 	bstp_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(bridgestp, bstp_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_arcsubr.c b/sys/net/if_arcsubr.c
index 03f3a1c..a2c35e4 100644
--- a/sys/net/if_arcsubr.c
+++ b/sys/net/if_arcsubr.c
@@ -878,7 +878,7 @@ arc_modevent(module_t mod, int type, void *data)
 static moduledata_t arc_mod = {
 	"arcnet",
 	arc_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(arcnet, arc_mod, SI_SUB_INIT_IF, SI_ORDER_ANY);
diff --git a/sys/net/if_atmsubr.c b/sys/net/if_atmsubr.c
index bb691e1..0ce1f1d 100644
--- a/sys/net/if_atmsubr.c
+++ b/sys/net/if_atmsubr.c
@@ -496,7 +496,7 @@ atm_modevent(module_t mod, int type, void *data)
 static moduledata_t atm_mod = {
         "atm",
         atm_modevent,
-        0
+	NULL
 };
                 
 DECLARE_MODULE(atm, atm_mod, SI_SUB_INIT_IF, SI_ORDER_ANY);
diff --git a/sys/net/if_bridge.c b/sys/net/if_bridge.c
index 5800831..734e04a 100644
--- a/sys/net/if_bridge.c
+++ b/sys/net/if_bridge.c
@@ -523,7 +523,7 @@ bridge_modevent(module_t mod, int type, void *data)
 static moduledata_t bridge_mod = {
 	"if_bridge",
 	bridge_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_bridge, bridge_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_enc.c b/sys/net/if_enc.c
index efd3fc7..add215f 100644
--- a/sys/net/if_enc.c
+++ b/sys/net/if_enc.c
@@ -181,7 +181,7 @@ enc_modevent(module_t mod, int type, void *data)
 static moduledata_t enc_mod = {
 	"if_enc",
 	enc_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_enc, enc_mod, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY);
diff --git a/sys/net/if_epair.c b/sys/net/if_epair.c
index 2a67e18..90f2ea9 100644
--- a/sys/net/if_epair.c
+++ b/sys/net/if_epair.c
@@ -978,7 +978,7 @@ epair_modevent(module_t mod, int type, void *data)
 static moduledata_t epair_mod = {
 	"if_epair",
 	epair_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_epair, epair_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c
index ba47194..39413a5 100644
--- a/sys/net/if_ethersubr.c
+++ b/sys/net/if_ethersubr.c
@@ -1237,7 +1237,7 @@ ether_modevent(module_t mod, int type, void *data)
 static moduledata_t ether_mod = {
 	"ether",
 	ether_modevent,
-	0
+	NULL
 };
 
 void
diff --git a/sys/net/if_faith.c b/sys/net/if_faith.c
index db4c1d9..40289a8 100644
--- a/sys/net/if_faith.c
+++ b/sys/net/if_faith.c
@@ -136,7 +136,7 @@ faithmodevent(mod, type, data)
 static moduledata_t faith_mod = {
 	"if_faith",
 	faithmodevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_faith, faith_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_fddisubr.c b/sys/net/if_fddisubr.c
index d98029c..2b59f3a 100644
--- a/sys/net/if_fddisubr.c
+++ b/sys/net/if_fddisubr.c
@@ -792,7 +792,7 @@ fddi_resolvemulti(ifp, llsa, sa)
 static moduledata_t fddi_mod = {
 	"fddi",	/* module name */
 	NULL,	/* event handler */
-	0	/* extra data */
+	NULL	/* extra data */
 };
 
 DECLARE_MODULE(fddi, fddi_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_fwsubr.c b/sys/net/if_fwsubr.c
index 5414d79..9e996cc 100644
--- a/sys/net/if_fwsubr.c
+++ b/sys/net/if_fwsubr.c
@@ -845,7 +845,7 @@ firewire_modevent(module_t mod, int type, void *data)
 static moduledata_t firewire_mod = {
 	"if_firewire",
 	firewire_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_firewire, firewire_mod, SI_SUB_INIT_IF, SI_ORDER_ANY);
diff --git a/sys/net/if_gif.c b/sys/net/if_gif.c
index 783607b..19906c7 100644
--- a/sys/net/if_gif.c
+++ b/sys/net/if_gif.c
@@ -272,7 +272,7 @@ gifmodevent(mod, type, data)
 static moduledata_t gif_mod = {
 	"if_gif",
 	gifmodevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_gif, gif_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_gre.c b/sys/net/if_gre.c
index 8b250d7..e7905ea 100644
--- a/sys/net/if_gre.c
+++ b/sys/net/if_gre.c
@@ -973,7 +973,7 @@ gremodevent(module_t mod, int type, void *data)
 static moduledata_t gre_mod = {
 	"if_gre",
 	gremodevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_gre, gre_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_iso88025subr.c b/sys/net/if_iso88025subr.c
index 91d67fd..1e251e4 100644
--- a/sys/net/if_iso88025subr.c
+++ b/sys/net/if_iso88025subr.c
@@ -823,7 +823,7 @@ iso88025_modevent(module_t mod, int type, void *data)
 static moduledata_t iso88025_mod = {
 	"iso88025",
 	iso88025_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(iso88025, iso88025_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_lagg.c b/sys/net/if_lagg.c
index e567e8e..5179306 100644
--- a/sys/net/if_lagg.c
+++ b/sys/net/if_lagg.c
@@ -211,7 +211,7 @@ lagg_modevent(module_t mod, int type, void *data)
 static moduledata_t lagg_mod = {
 	"if_lagg",
 	lagg_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_lagg, lagg_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_loop.c b/sys/net/if_loop.c
index 2850b38..31cda71 100644
--- a/sys/net/if_loop.c
+++ b/sys/net/if_loop.c
@@ -205,7 +205,7 @@ loop_modevent(module_t mod, int type, void *data)
 static moduledata_t loop_mod = {
 	"if_lo",
 	loop_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_lo, loop_mod, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY);
diff --git a/sys/net/if_spppsubr.c b/sys/net/if_spppsubr.c
index 7c9c230..0352f10 100644
--- a/sys/net/if_spppsubr.c
+++ b/sys/net/if_spppsubr.c
@@ -494,7 +494,7 @@ sppp_modevent(module_t mod, int type, void *unused)
 static moduledata_t spppmod = {
 	"sppp",
 	sppp_modevent,
-	0
+	NULL
 };
 MODULE_VERSION(sppp, 1);
 DECLARE_MODULE(sppp, spppmod, SI_SUB_DRIVERS, SI_ORDER_ANY);
diff --git a/sys/net/if_stf.c b/sys/net/if_stf.c
index b19c855..863973f 100644
--- a/sys/net/if_stf.c
+++ b/sys/net/if_stf.c
@@ -301,7 +301,7 @@ stfmodevent(mod, type, data)
 static moduledata_t stf_mod = {
 	"if_stf",
 	stfmodevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_stf, stf_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c
index 74e1d22..b2070ef 100644
--- a/sys/net/if_tun.c
+++ b/sys/net/if_tun.c
@@ -317,7 +317,7 @@ tunmodevent(module_t mod, int type, void *data)
 static moduledata_t tun_mod = {
 	"if_tun",
 	tunmodevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_tun, tun_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c
index 3bc3b67..d76fbdc 100644
--- a/sys/net/if_vlan.c
+++ b/sys/net/if_vlan.c
@@ -762,7 +762,7 @@ vlan_modevent(module_t mod, int type, void *data)
 static moduledata_t vlan_mod = {
 	"if_vlan",
 	vlan_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(if_vlan, vlan_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/net/zlib.c b/sys/net/zlib.c
index 8fc8cab..c7bbb95 100644
--- a/sys/net/zlib.c
+++ b/sys/net/zlib.c
@@ -5400,7 +5400,7 @@ zlib_modevent(module_t mod, int type, void *unused)
 static moduledata_t zlib_mod = {
 	"zlib",
 	zlib_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(zlib, zlib_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(zlib, 1);
diff --git a/sys/net80211/ieee80211_freebsd.c b/sys/net80211/ieee80211_freebsd.c
index b733d2f..844910f 100644
--- a/sys/net80211/ieee80211_freebsd.c
+++ b/sys/net80211/ieee80211_freebsd.c
@@ -822,7 +822,7 @@ wlan_modevent(module_t mod, int type, void *unused)
 static moduledata_t wlan_mod = {
 	"wlan",
 	wlan_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(wlan, 1);
diff --git a/sys/net80211/ieee80211_freebsd.h b/sys/net80211/ieee80211_freebsd.h
index abfc2c0..af5f1fa 100644
--- a/sys/net80211/ieee80211_freebsd.h
+++ b/sys/net80211/ieee80211_freebsd.h
@@ -323,7 +323,7 @@ wlan_##name##_modevent(module_t mod, int type, void *unused)		\
 static moduledata_t name##_mod = {					\
 	"wlan_" #name,							\
 	wlan_##name##_modevent,						\
-	0								\
+	NULL								\
 };									\
 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
 MODULE_VERSION(wlan_##name, version);					\
diff --git a/sys/netgraph/atm/ngatmbase.c b/sys/netgraph/atm/ngatmbase.c
index c5b0ced..1919f30 100644
--- a/sys/netgraph/atm/ngatmbase.c
+++ b/sys/netgraph/atm/ngatmbase.c
@@ -51,7 +51,7 @@ static int ngatm_handler(module_t, int, void *);
 static moduledata_t ngatm_data = {
 	"ngatmbase",
 	ngatm_handler,
-	0
+	NULL
 };
 
 MODULE_VERSION(ngatmbase, NGATMBASE_VERSION);
diff --git a/sys/netinet/igmp.c b/sys/netinet/igmp.c
index 94c00a1..ececf2d 100644
--- a/sys/netinet/igmp.c
+++ b/sys/netinet/igmp.c
@@ -3644,6 +3644,6 @@ igmp_modevent(module_t mod, int type, void *unused __unused)
 static moduledata_t igmp_mod = {
     "igmp",
     igmp_modevent,
-    0
+    NULL
 };
 DECLARE_MODULE(igmp, igmp_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/netinet/ip_carp.c b/sys/netinet/ip_carp.c
index a5e766a..d6c9b01 100644
--- a/sys/netinet/ip_carp.c
+++ b/sys/netinet/ip_carp.c
@@ -2145,7 +2145,7 @@ carp_modevent(module_t mod, int type, void *data)
 static moduledata_t carp_mod = {
 	"carp",
 	carp_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(carp, carp_mod, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY);
diff --git a/sys/netinet/ip_divert.c b/sys/netinet/ip_divert.c
index 4f5f1b3..07fb9b0 100644
--- a/sys/netinet/ip_divert.c
+++ b/sys/netinet/ip_divert.c
@@ -834,7 +834,7 @@ div_modevent(module_t mod, int type, void *unused)
 static moduledata_t ipdivertmod = {
         "ipdivert",
         div_modevent,
-        0
+	NULL
 };
 
 DECLARE_MODULE(ipdivert, ipdivertmod, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY);
diff --git a/sys/netinet/ip_mroute.c b/sys/netinet/ip_mroute.c
index c52332d..425fe3f 100644
--- a/sys/netinet/ip_mroute.c
+++ b/sys/netinet/ip_mroute.c
@@ -2944,7 +2944,7 @@ ip_mroute_modevent(module_t mod, int type, void *unused)
 static moduledata_t ip_mroutemod = {
     "ip_mroute",
     ip_mroute_modevent,
-    0
+    NULL
 };
 
 DECLARE_MODULE(ip_mroute, ip_mroutemod, SI_SUB_PSEUDO, SI_ORDER_MIDDLE);
diff --git a/sys/netinet/toecore.c b/sys/netinet/toecore.c
index 7e498dd..c38018f 100644
--- a/sys/netinet/toecore.c
+++ b/sys/netinet/toecore.c
@@ -570,7 +570,7 @@ toecore_mod_handler(module_t mod, int cmd, void *arg)
 static moduledata_t mod_data= {
 	"toecore",
 	toecore_mod_handler,
-	0
+	NULL
 };
 
 MODULE_VERSION(toecore, 1);
diff --git a/sys/netinet6/ip6_mroute.c b/sys/netinet6/ip6_mroute.c
index 8ecd60e..2555b92 100644
--- a/sys/netinet6/ip6_mroute.c
+++ b/sys/netinet6/ip6_mroute.c
@@ -2059,7 +2059,7 @@ ip6_mroute_modevent(module_t mod, int type, void *unused)
 static moduledata_t ip6_mroutemod = {
 	"ip6_mroute",
 	ip6_mroute_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(ip6_mroute, ip6_mroutemod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/netinet6/mld6.c b/sys/netinet6/mld6.c
index ba850b2..9d8bc8d 100644
--- a/sys/netinet6/mld6.c
+++ b/sys/netinet6/mld6.c
@@ -3309,6 +3309,6 @@ mld_modevent(module_t mod, int type, void *unused __unused)
 static moduledata_t mld_mod = {
     "mld",
     mld_modevent,
-    0
+    NULL
 };
 DECLARE_MODULE(mld, mld_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/netinet6/send.c b/sys/netinet6/send.c
index 5624366..09fe586 100644
--- a/sys/netinet6/send.c
+++ b/sys/netinet6/send.c
@@ -361,7 +361,7 @@ send_modevent(module_t mod, int type, void *unused)
 static moduledata_t sendmod = {
 	"send",
 	send_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(send, sendmod, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY);
diff --git a/sys/netpfil/ipfw/ip_fw2.c b/sys/netpfil/ipfw/ip_fw2.c
index e43a0ef..8ac2fa8 100644
--- a/sys/netpfil/ipfw/ip_fw2.c
+++ b/sys/netpfil/ipfw/ip_fw2.c
@@ -2756,7 +2756,7 @@ ipfw_modevent(module_t mod, int type, void *unused)
 static moduledata_t ipfwmod = {
 	"ipfw",
 	ipfw_modevent,
-	0
+	NULL
 };
 
 /* Define startup order. */
diff --git a/sys/netpfil/ipfw/ip_fw_nat.c b/sys/netpfil/ipfw/ip_fw_nat.c
index 94861b3..b2800fc 100644
--- a/sys/netpfil/ipfw/ip_fw_nat.c
+++ b/sys/netpfil/ipfw/ip_fw_nat.c
@@ -651,7 +651,7 @@ ipfw_nat_modevent(module_t mod, int type, void *unused)
 static moduledata_t ipfw_nat_mod = {
 	"ipfw_nat",
 	ipfw_nat_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(ipfw_nat, ipfw_nat_mod, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY);
diff --git a/sys/netpfil/pf/if_pflog.c b/sys/netpfil/pf/if_pflog.c
index 20feea2..9bd9ca8 100644
--- a/sys/netpfil/pf/if_pflog.c
+++ b/sys/netpfil/pf/if_pflog.c
@@ -281,7 +281,7 @@ pflog_modevent(module_t mod, int type, void *data)
 	return error;
 }
 
-static moduledata_t pflog_mod = { "pflog", pflog_modevent, 0 };
+static moduledata_t pflog_mod = { "pflog", pflog_modevent, NULL };
 
 #define PFLOG_MODVER 1
 
diff --git a/sys/netpfil/pf/if_pfsync.c b/sys/netpfil/pf/if_pfsync.c
index 505d9a7..9267e28 100644
--- a/sys/netpfil/pf/if_pfsync.c
+++ b/sys/netpfil/pf/if_pfsync.c
@@ -2402,7 +2402,7 @@ pfsync_modevent(module_t mod, int type, void *data)
 static moduledata_t pfsync_mod = {
 	"pfsync",
 	pfsync_modevent,
-	0
+	NULL
 };
 
 #define PFSYNC_MODVER 1
diff --git a/sys/netpfil/pf/pf_ioctl.c b/sys/netpfil/pf/pf_ioctl.c
index a8b71d5..35b6d29 100644
--- a/sys/netpfil/pf/pf_ioctl.c
+++ b/sys/netpfil/pf/pf_ioctl.c
@@ -3722,7 +3722,7 @@ pf_modevent(module_t mod, int type, void *data)
 static moduledata_t pf_mod = {
 	"pf",
 	pf_modevent,
-	0
+	NULL
 };
 
 DECLARE_MODULE(pf, pf_mod, SI_SUB_PSEUDO, SI_ORDER_FIRST);
diff --git a/sys/nfs/nfs_nfssvc.c b/sys/nfs/nfs_nfssvc.c
index 9680eb7..929aa6a 100644
--- a/sys/nfs/nfs_nfssvc.c
+++ b/sys/nfs/nfs_nfssvc.c
@@ -147,7 +147,7 @@ nfssvc_modevent(module_t mod, int type, void *data)
 static moduledata_t nfssvc_mod = {
 	"nfssvc",
 	nfssvc_modevent,
-	NULL,
+	NULL
 };
 DECLARE_MODULE(nfssvc, nfssvc_mod, SI_SUB_VFS, SI_ORDER_ANY);
 
diff --git a/sys/nfsserver/nfs_srvsubs.c b/sys/nfsserver/nfs_srvsubs.c
index 66a85c4..33a7edb 100644
--- a/sys/nfsserver/nfs_srvsubs.c
+++ b/sys/nfsserver/nfs_srvsubs.c
@@ -552,7 +552,7 @@ nfsrv_modevent(module_t mod, int type, void *data)
 static moduledata_t nfsserver_mod = {
 	"nfsserver",
 	nfsrv_modevent,
-	NULL,
+	NULL
 };
 DECLARE_MODULE(nfsserver, nfsserver_mod, SI_SUB_VFS, SI_ORDER_ANY);
 
diff --git a/sys/opencrypto/cryptodev.c b/sys/opencrypto/cryptodev.c
index 2bc0e1f..01357a5 100644
--- a/sys/opencrypto/cryptodev.c
+++ b/sys/opencrypto/cryptodev.c
@@ -1171,7 +1171,7 @@ cryptodev_modevent(module_t mod, int type, void *unused)
 static moduledata_t cryptodev_mod = {
 	"cryptodev",
 	cryptodev_modevent,
-	0
+	NULL
 };
 MODULE_VERSION(cryptodev, 1);
 DECLARE_MODULE(cryptodev, cryptodev_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
diff --git a/sys/tools/fw_stub.awk b/sys/tools/fw_stub.awk
index 0c7d567..82ca821 100644
--- a/sys/tools/fw_stub.awk
+++ b/sys/tools/fw_stub.awk
@@ -215,7 +215,7 @@ printc("\t\treturn (error);\
 static moduledata_t " modname "_fw_mod = {\
         \"" modname "_fw\",\
         " modname "_fw_modevent,\
-        0\
+        NULL\
 };\
 DECLARE_MODULE(" modname "_fw, " modname "_fw_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
 MODULE_VERSION(" modname "_fw, 1);\
diff --git a/tools/regression/kthread/kld/kthrdlk.c b/tools/regression/kthread/kld/kthrdlk.c
index 67825b6..a64dc2e 100644
--- a/tools/regression/kthread/kld/kthrdlk.c
+++ b/tools/regression/kthread/kld/kthrdlk.c
@@ -193,12 +193,11 @@ kthrdlk_handler(module_t mod, int /*modeventtype_t*/ what,
 }
 
 static moduledata_t mod_data= {
-             "kthrdlk",
-             kthrdlk_handler,
-             0
-     };
+	"kthrdlk",
+	kthrdlk_handler,
+	NULL
+};
 
 MODULE_VERSION(kthrdlk, 1);
 
 DECLARE_MODULE(kthrdlk, mod_data, SI_SUB_EXEC, SI_ORDER_ANY);
-
diff --git a/tools/regression/net80211/ccmp/test_ccmp.c b/tools/regression/net80211/ccmp/test_ccmp.c
index d78be95..da13ac7 100644
--- a/tools/regression/net80211/ccmp/test_ccmp.c
+++ b/tools/regression/net80211/ccmp/test_ccmp.c
@@ -742,7 +742,7 @@ test_ccmp_modevent(module_t mod, int type, void *unused)
 static moduledata_t test_ccmp_mod = {
 	"test_ccmp",
 	test_ccmp_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(test_ccmp, test_ccmp_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(test_ccmp, 1);
diff --git a/tools/regression/net80211/tkip/test_tkip.c b/tools/regression/net80211/tkip/test_tkip.c
index 5a63978..3909bbd 100644
--- a/tools/regression/net80211/tkip/test_tkip.c
+++ b/tools/regression/net80211/tkip/test_tkip.c
@@ -381,7 +381,7 @@ test_tkip_modevent(module_t mod, int type, void *unused)
 static moduledata_t test_tkip_mod = {
 	"test_tkip",
 	test_tkip_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(test_tkip, test_tkip_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(test_tkip, 1);
diff --git a/tools/regression/net80211/wep/test_wep.c b/tools/regression/net80211/wep/test_wep.c
index b498195..04bd054 100644
--- a/tools/regression/net80211/wep/test_wep.c
+++ b/tools/regression/net80211/wep/test_wep.c
@@ -328,7 +328,7 @@ test_wep_modevent(module_t mod, int type, void *unused)
 static moduledata_t test_wep_mod = {
 	"test_wep",
 	test_wep_modevent,
-	0
+	NULL
 };
 DECLARE_MODULE(test_wep, test_wep_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
 MODULE_VERSION(test_wep, 1);
diff --git a/tools/tools/kttcp/sys/kttcp.c b/tools/tools/kttcp/sys/kttcp.c
index 0973960..dbaa9fc 100644
--- a/tools/tools/kttcp/sys/kttcp.c
+++ b/tools/tools/kttcp/sys/kttcp.c
@@ -268,7 +268,7 @@ kttcpdev_modevent(module_t mod, int type, void *unused)
 static moduledata_t kttcpdev_mod = {
 	"kttcpdev",
 	kttcpdev_modevent,
-	0
+	NULL
 };
 MODULE_VERSION(kttcpdev, 1);
 DECLARE_MODULE(kttcpdev, kttcpdev_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);