diff --git a/sys/dev/ct/bshw_machdep.c b/sys/dev/ct/bshw_machdep.c
index 674291e08577..ba89e559cdb8 100644
--- a/sys/dev/ct/bshw_machdep.c
+++ b/sys/dev/ct/bshw_machdep.c
@@ -78,9 +78,7 @@ typedef	unsigned long vaddr_t;
  * GENERIC MACHDEP FUNCTIONS
  *********************************************************/
 void
-bshw_synch_setup(ct, ti)
-	struct ct_softc *ct;
-	struct targ_info *ti;
+bshw_synch_setup(struct ct_softc *ct, struct targ_info *ti)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	struct ct_targ_info *cti = (void *) ti;
@@ -99,8 +97,7 @@ bshw_synch_setup(ct, ti)
 }
 
 void
-bshw_bus_reset(ct)
-	struct ct_softc *ct;
+bshw_bus_reset(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -149,9 +146,7 @@ bshw_bus_reset(ct)
 
 /* probe */
 int
-bshw_read_settings(chp, bs)
-	struct ct_bus_access_handle *chp;
-	struct bshw_softc *bs;
+bshw_read_settings(struct ct_bus_access_handle *chp, struct bshw_softc *bs)
 {
 	static int irq_tbl[] = { 3, 5, 6, 9, 12, 13 };
 
@@ -183,8 +178,7 @@ static __inline void bshw_lc_smit_stop(struct ct_softc *);
 static int bshw_lc_smit_fstat(struct ct_softc *, int, int);
 
 static __inline void
-bshw_lc_smit_stop(ct)
-	struct ct_softc *ct;
+bshw_lc_smit_stop(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 
@@ -193,10 +187,7 @@ bshw_lc_smit_stop(ct)
 }
 
 static __inline void
-bshw_lc_smit_start(ct, count, direction)
-	struct ct_softc *ct;
-	int count;
-	u_int direction;
+bshw_lc_smit_start(struct ct_softc *ct, int count, u_int direction)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	u_int8_t pval, val;
@@ -212,9 +203,7 @@ bshw_lc_smit_start(ct, count, direction)
 }
 
 static int
-bshw_lc_smit_fstat(ct, wc, read)
-	struct ct_softc *ct;
-	int wc, read;
+bshw_lc_smit_fstat(struct ct_softc *ct, int wc, int read)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	u_int8_t stat;
@@ -244,8 +233,7 @@ bshw_lc_smit_fstat(ct, wc, read)
 }
 
 void
-bshw_smit_xfer_stop(ct)
-	struct ct_softc *ct;
+bshw_smit_xfer_stop(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct bshw_softc *bs = ct->ct_hw;
@@ -292,8 +280,7 @@ bshw_smit_xfer_stop(ct)
 }
 
 int
-bshw_smit_xfer_start(ct)
-	struct ct_softc *ct;
+bshw_smit_xfer_start(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -396,8 +383,7 @@ static void bshw_dmastart(struct ct_softc *);
 static void bshw_dmadone(struct ct_softc *);
 
 int
-bshw_dma_xfer_start(ct)
-	struct ct_softc *ct;
+bshw_dma_xfer_start(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct sc_p *sp = &slp->sl_scp;
@@ -458,8 +444,7 @@ bshw_dma_xfer_start(ct)
 }
 
 void
-bshw_dma_xfer_stop(ct)
-	struct ct_softc *ct;
+bshw_dma_xfer_stop(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct sc_p *sp = &slp->sl_scp;
@@ -523,10 +508,8 @@ bshw_dma_xfer_stop(ct)
 static bus_addr_t dmapageport[4] = { 0x27, 0x21, 0x23, 0x25 };
 
 static __inline void 
-bshw_dma_write_1(chp, port, val)
-	struct ct_bus_access_handle *chp;
-	bus_addr_t port;
-	u_int8_t val;
+bshw_dma_write_1(struct ct_bus_access_handle *chp, bus_addr_t port, 
+    u_int8_t val)
 {
 
 	CT_BUS_WEIGHT(chp);
@@ -534,8 +517,7 @@ bshw_dma_write_1(chp, port, val)
 }
 
 static void
-bshw_dmastart(ct)
-	struct ct_softc *ct;
+bshw_dmastart(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct bshw_softc *bs = ct->ct_hw;
@@ -581,8 +563,7 @@ bshw_dmastart(ct)
 }
 
 static void
-bshw_dmadone(ct)
-	struct ct_softc *ct;
+bshw_dmadone(struct ct_softc *ct)
 {
 	struct bshw_softc *bs = ct->ct_hw;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -609,8 +590,7 @@ static void bshw_dma_start_elecom(struct ct_softc *);
 static void bshw_dma_stop_elecom(struct ct_softc *);
 
 static int
-bshw_dma_init_texa(ct)
-	struct ct_softc *ct;
+bshw_dma_init_texa(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	u_int8_t regval;
@@ -625,8 +605,7 @@ bshw_dma_init_texa(ct)
 }
 
 static int
-bshw_dma_init_sc98(ct)
-	struct ct_softc *ct;
+bshw_dma_init_sc98(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 
@@ -652,8 +631,7 @@ bshw_dma_init_sc98(ct)
 }
 
 static void
-bshw_dma_start_sc98(ct)
-	struct ct_softc *ct;
+bshw_dma_start_sc98(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 
@@ -662,8 +640,7 @@ bshw_dma_start_sc98(ct)
 }
 
 static void
-bshw_dma_stop_sc98(ct)
-	struct ct_softc *ct;
+bshw_dma_stop_sc98(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 
@@ -672,8 +649,7 @@ bshw_dma_stop_sc98(ct)
 }
 
 static void
-bshw_dma_start_elecom(ct)
-	struct ct_softc *ct;
+bshw_dma_start_elecom(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	u_int8_t tmp = ct_cr_read_1(chp, 0x4c);
@@ -682,8 +658,7 @@ bshw_dma_start_elecom(ct)
 }
 
 static void
-bshw_dma_stop_elecom(ct)
-	struct ct_softc *ct;
+bshw_dma_stop_elecom(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	u_int8_t tmp = ct_cr_read_1(chp, 0x4c);
diff --git a/sys/dev/ct/ct.c b/sys/dev/ct/ct.c
index 89fe3514a31b..1d3f0db1c3ad 100644
--- a/sys/dev/ct/ct.c
+++ b/sys/dev/ct/ct.c
@@ -164,9 +164,7 @@ struct scsi_low_funcs ct_funcs = {
  * HW functions
  **************************************************/
 static __inline void
-cthw_phase_bypass(ct, ph)
-	struct ct_softc *ct;
-	u_int8_t ph;
+cthw_phase_bypass(struct ct_softc *ct, u_int8_t ph)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 
@@ -175,8 +173,7 @@ cthw_phase_bypass(ct, ph)
 }
 
 static void
-cthw_bus_reset(ct)
-	struct ct_softc *ct;
+cthw_bus_reset(struct ct_softc *ct)
 {
 
 	/*
@@ -187,10 +184,8 @@ cthw_bus_reset(ct)
 }
 
 static int
-cthw_chip_reset(chp, chiprevp, chipclk, hostid)
-	struct ct_bus_access_handle *chp;
-	int *chiprevp;
-	int chipclk, hostid;
+cthw_chip_reset(struct ct_bus_access_handle *chp, int *chiprevp, int chipclk,
+    int hostid)
 {
 #define	CT_SELTIMEOUT_20MHz_REGV	(0x80)
 	u_int8_t aux, regv;
@@ -285,8 +280,7 @@ cthw_chip_reset(chp, chiprevp, chipclk, hostid)
 }
 
 static struct ct_synch_data *
-ct_make_synch_table(ct)
-	struct ct_softc *ct;
+ct_make_synch_table(struct ct_softc *ct)
 {
 	struct ct_synch_data *sdtp, *sdp;
 	u_int base, i, period;
@@ -329,11 +323,8 @@ ct_make_synch_table(ct)
  * Attach & Probe
  **************************************************/
 int
-ctprobesubr(chp, dvcfg, hsid, chipclk, chiprevp)
-	struct ct_bus_access_handle *chp;
-	u_int dvcfg, chipclk;
-	int hsid;
-	int *chiprevp;
+ctprobesubr(struct ct_bus_access_handle *chp, u_int dvcfg, int hsid,
+    u_int chipclk, int *chiprevp)
 {
 
 #if	0
@@ -346,8 +337,7 @@ ctprobesubr(chp, dvcfg, hsid, chipclk, chiprevp)
 }
 
 void
-ctattachsubr(ct)
-	struct ct_softc *ct;
+ctattachsubr(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 
@@ -362,8 +352,7 @@ ctattachsubr(ct)
  * SCSI LOW interface functions
  **************************************************/
 static void
-cthw_attention(ct)
-	struct ct_softc *ct;
+cthw_attention(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 
@@ -380,8 +369,7 @@ cthw_attention(ct)
 }
 
 static void
-ct_attention(ct)
-	struct ct_softc *ct;
+ct_attention(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 
@@ -398,10 +386,7 @@ ct_attention(ct)
 }
 
 static int
-ct_targ_init(ct, ti, action)
-	struct ct_softc *ct;
-	struct targ_info *ti;
-	int action;
+ct_targ_init(struct ct_softc *ct, struct targ_info *ti, int action)
 {
 	struct ct_targ_info *cti = (void *) ti;
 
@@ -438,9 +423,7 @@ ct_targ_init(ct, ti, action)
 }	
 
 static int
-ct_world_start(ct, fdone)
-	struct ct_softc *ct;
-	int fdone;
+ct_world_start(struct ct_softc *ct, int fdone)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -470,9 +453,7 @@ ct_world_start(ct, fdone)
 }
 
 static int
-ct_start_selection(ct, cb)
-	struct ct_softc *ct;
-	struct slccb *cb;
+ct_start_selection(struct ct_softc *ct, struct slccb *cb)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -544,10 +525,7 @@ ct_start_selection(ct, cb)
 }
 
 static int
-ct_msg(ct, ti, msg)
-	struct ct_softc *ct;
-	struct targ_info *ti;
-	u_int msg;
+ct_msg(struct ct_softc *ct, struct targ_info *ti, u_int msg)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	struct ct_targ_info *cti = (void *) ti;
@@ -599,11 +577,8 @@ ct_msg(ct, ti, msg)
  * <DATA PHASE>
  *************************************************/
 static int
-ct_xfer(ct, data, len, direction, statp)
-	struct ct_softc *ct;
-	u_int8_t *data;
-	int len, direction;
-	u_int *statp;
+ct_xfer(struct ct_softc *ct, u_int8_t *data, int len, int direction,
+    u_int *statp)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	int wc;
@@ -663,8 +638,7 @@ ct_xfer(ct, data, len, direction, statp)
 #define	CT_PADDING_BUF_SIZE 32
 
 static void
-ct_io_xfer(ct)
-	struct ct_softc *ct;
+ct_io_xfer(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -716,9 +690,7 @@ struct ct_err ct_cmderr[] = {
 };
 
 static void
-ct_phase_error(ct, scsi_status)
-	struct ct_softc *ct;
-	u_int8_t scsi_status;
+ct_phase_error(struct ct_softc *ct, u_int8_t scsi_status)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct targ_info *ti = slp->sl_Tnexus;
@@ -764,9 +736,7 @@ ct_phase_error(ct, scsi_status)
  * ### SCSI PHASE SEQUENCER ###
  **************************************************/
 static int
-ct_reselected(ct, scsi_status)
-	struct ct_softc *ct;
-	u_int8_t scsi_status;
+ct_reselected(struct ct_softc *ct, u_int8_t scsi_status)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -809,9 +779,7 @@ ct_reselected(ct, scsi_status)
 }
 
 static int
-ct_target_nexus_establish(ct, lun, dir)
-	struct ct_softc *ct;
-	int lun, dir;
+ct_target_nexus_establish(struct ct_softc *ct, int lun, int dir)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -831,8 +799,7 @@ ct_target_nexus_establish(ct, lun, dir)
 }
 
 static int
-ct_lun_nexus_establish(ct)
-	struct ct_softc *ct;
+ct_lun_nexus_establish(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -843,8 +810,7 @@ ct_lun_nexus_establish(ct)
 }
 
 static int
-ct_ccb_nexus_establish(ct)
-	struct ct_softc *ct;
+ct_ccb_nexus_establish(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -870,8 +836,7 @@ ct_ccb_nexus_establish(ct)
 }
 
 static int
-ct_unbusy(ct)
-	struct ct_softc *ct;
+ct_unbusy(struct ct_softc *ct)
 {
 	struct scsi_low_softc *slp = &ct->sc_sclow;
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
@@ -894,8 +859,7 @@ ct_unbusy(ct)
 }
 	
 static int
-ct_catch_intr(ct)
-	struct ct_softc *ct;
+ct_catch_intr(struct ct_softc *ct)
 {
 	struct ct_bus_access_handle *chp = &ct->sc_ch;
 	int wc;
@@ -913,8 +877,7 @@ ct_catch_intr(ct)
 }
 
 int
-ctintr(arg)
-	void *arg;
+ctintr(void *arg)
 {
 	struct ct_softc *ct = arg;
 	struct scsi_low_softc *slp = &ct->sc_sclow;
diff --git a/sys/dev/ct/ct_isa.c b/sys/dev/ct/ct_isa.c
index ac93759f6638..d17af2358464 100644
--- a/sys/dev/ct/ct_isa.c
+++ b/sys/dev/ct/ct_isa.c
@@ -367,16 +367,14 @@ ct_dmamap(void *arg, bus_dma_segment_t *seg, int nseg, int error)
 }
 
 static void
-ct_isa_bus_access_weight(chp)
-	struct ct_bus_access_handle *chp;
+ct_isa_bus_access_weight(struct ct_bus_access_handle *chp)
 {
 
 	outb(0x5f, 0);
 }
 
 static void
-ct_isa_dmasync_before(ct)
-	struct ct_softc *ct;
+ct_isa_dmasync_before(struct ct_softc *ct)
 {
 
 	if (need_pre_dma_flush)
@@ -384,8 +382,7 @@ ct_isa_dmasync_before(ct)
 }
 
 static void
-ct_isa_dmasync_after(ct)
-	struct ct_softc *ct;
+ct_isa_dmasync_after(struct ct_softc *ct)
 {
 
 	if (need_post_dma_flush)
diff --git a/sys/dev/ct/ct_machdep.h b/sys/dev/ct/ct_machdep.h
index ceba6540d650..a6b8b1551989 100644
--- a/sys/dev/ct/ct_machdep.h
+++ b/sys/dev/ct/ct_machdep.h
@@ -90,8 +90,7 @@ static __inline void cthw_set_count
 	(struct ct_bus_access_handle *, u_int);
 
 static __inline u_int8_t
-ct_stat_read_1(chp)
-	struct ct_bus_access_handle *chp;
+ct_stat_read_1(struct ct_bus_access_handle *chp)
 {
 	u_int8_t regv;
 
@@ -101,9 +100,7 @@ ct_stat_read_1(chp)
 }
 
 static __inline void
-cthw_set_count(chp, count)
-	struct ct_bus_access_handle *chp;
-	u_int count;
+cthw_set_count(struct ct_bus_access_handle *chp, u_int count)
 {
 	bus_space_tag_t bst = chp->ch_iot;
 	bus_space_handle_t bsh = chp->ch_ioh;
@@ -119,8 +116,7 @@ cthw_set_count(chp, count)
 }
 
 static __inline u_int
-cthw_get_count(chp)
-	struct ct_bus_access_handle *chp;
+cthw_get_count(struct ct_bus_access_handle *chp)
 {
 	bus_space_tag_t bst = chp->ch_iot;
 	bus_space_handle_t bsh = chp->ch_ioh;
@@ -138,10 +134,7 @@ cthw_get_count(chp)
 }
 
 static __inline void
-ct_write_cmds(chp, cmd, len)
-	struct ct_bus_access_handle *chp;
-	u_int8_t *cmd;
-	int len;
+ct_write_cmds(struct ct_bus_access_handle *chp, u_int8_t *cmd, int len)
 {
 	bus_space_tag_t bst = chp->ch_iot;
 	bus_space_handle_t bsh = chp->ch_ioh;
@@ -157,9 +150,7 @@ ct_write_cmds(chp, cmd, len)
 }	
 
 static __inline u_int8_t
-ct_cr_read_1(chp, offs)
-	struct ct_bus_access_handle *chp;
-	bus_addr_t offs;
+ct_cr_read_1(struct ct_bus_access_handle *chp, bus_addr_t offs)
 {
 	bus_space_tag_t bst = chp->ch_iot;
 	bus_space_handle_t bsh = chp->ch_ioh;
@@ -173,10 +164,7 @@ ct_cr_read_1(chp, offs)
 }
 
 static __inline void
-ct_cr_write_1(chp, offs, val)
-	struct ct_bus_access_handle *chp;
-	bus_addr_t offs;
-	u_int8_t val;
+ct_cr_write_1(struct ct_bus_access_handle *chp, bus_addr_t offs, u_int8_t val)
 {
 	bus_space_tag_t bst = chp->ch_iot;
 	bus_space_handle_t bsh = chp->ch_ioh;
@@ -188,8 +176,7 @@ ct_cr_write_1(chp, offs, val)
 }
 
 static __inline u_int8_t
-ct_cmdp_read_1(chp)
-	struct ct_bus_access_handle *chp;
+ct_cmdp_read_1(struct ct_bus_access_handle *chp)
 {
 	u_int8_t regv;
 
@@ -199,9 +186,7 @@ ct_cmdp_read_1(chp)
 }
 
 static __inline void
-ct_cmdp_write_1(chp, val)
-	struct ct_bus_access_handle *chp;
-	u_int8_t val;
+ct_cmdp_write_1(struct ct_bus_access_handle *chp, u_int8_t val)
 {
 
 	bus_space_write_1(chp->ch_iot, chp->ch_ioh, cmd_port, val);
diff --git a/sys/dev/snc/dp83932.c b/sys/dev/snc/dp83932.c
index f86ad7ebfe1d..17b67cd418f7 100644
--- a/sys/dev/snc/dp83932.c
+++ b/sys/dev/snc/dp83932.c
@@ -142,10 +142,8 @@ int sncdebug = 0;
 
 
 int
-sncconfig(sc, media, nmedia, defmedia, myea)
-	struct snc_softc *sc;
-	int *media, nmedia, defmedia;
-	u_int8_t *myea;
+sncconfig(struct snc_softc *sc, int *media, int nmedia, int defmedia,
+    u_int8_t *myea)
 {
 	struct ifnet *ifp;
 	int i;
@@ -195,8 +193,7 @@ sncconfig(sc, media, nmedia, defmedia, myea)
 }
 
 void
-sncshutdown(arg)
-	void *arg;
+sncshutdown(void *arg)
 {
 	struct snc_softc *sc = arg;
 
@@ -208,8 +205,7 @@ sncshutdown(arg)
  * Media change callback.
  */
 int
-snc_mediachange(ifp)
-	struct ifnet *ifp;
+snc_mediachange(struct ifnet *ifp)
 {
 	struct snc_softc *sc = ifp->if_softc;
 	int error;
@@ -227,9 +223,7 @@ snc_mediachange(ifp)
  * Media status callback.
  */
 void
-snc_mediastatus(ifp, ifmr)
-	struct ifnet *ifp;
-	struct ifmediareq *ifmr;
+snc_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
 {
 	struct snc_softc *sc = ifp->if_softc;
 
@@ -248,10 +242,7 @@ snc_mediastatus(ifp, ifmr)
 
 
 static int
-sncioctl(ifp, cmd, data)
-	struct ifnet *ifp;
-	u_long cmd;
-	caddr_t data;
+sncioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 {
 	struct ifreq *ifr;
 	struct snc_softc *sc = ifp->if_softc;
@@ -317,8 +308,7 @@ sncioctl(ifp, cmd, data)
  * Encapsulate a packet of type family for the local net.
  */
 static void
-sncstart(ifp)
-	struct ifnet *ifp;
+sncstart(struct ifnet *ifp)
 {
 	struct snc_softc	*sc = ifp->if_softc;
 
@@ -328,8 +318,7 @@ sncstart(ifp)
 }
 
 static void
-sncstart_locked(ifp)
-	struct ifnet *ifp;
+sncstart_locked(struct ifnet *ifp)
 {
 	struct snc_softc	*sc = ifp->if_softc;
 	struct mbuf	*m;
@@ -390,16 +379,14 @@ sncstart_locked(ifp)
  * hardware/software errors.
  */
 static void
-sncreset(sc)
-	struct snc_softc *sc;
+sncreset(struct snc_softc *sc)
 {
 	sncstop(sc);
 	sncinit_locked(sc);
 }
 
 static void
-sncinit(xsc)
-	void *xsc;
+sncinit(void *xsc)
 {
 	struct snc_softc *sc = xsc;
 
@@ -476,8 +463,7 @@ sncinit_locked(struct snc_softc *sc)
  * part way through.
  */
 static int
-sncstop(sc)
-	struct snc_softc *sc;
+sncstop(struct snc_softc *sc)
 {
 	struct mtd *mtd;
 
@@ -536,10 +522,7 @@ sncwatchdog(void *arg)
  * stuff packet into sonic
  */
 static u_int
-sonicput(sc, m0, mtd_next)
-	struct snc_softc *sc;
-	struct mbuf *m0;
-	int mtd_next;
+sonicput(struct snc_softc *sc, struct mbuf *m0, int mtd_next)
 {
 	struct mtd *mtdp;
 	struct mbuf *m;
@@ -629,8 +612,7 @@ sonicput(sc, m0, mtd_next)
  * CAM support
  */
 static void
-caminitialise(sc)
-	struct snc_softc *sc;
+caminitialise(struct snc_softc *sc)
 {
 	u_int32_t v_cda = sc->v_cda;
 	int	i;
@@ -653,10 +635,7 @@ caminitialise(sc)
 }
 
 static void
-camentry(sc, entry, ea)
-	int entry;
-	u_char *ea;
-	struct snc_softc *sc;
+camentry(struct snc_softc *sc, int entry, u_char *ea)
 {
 	u_int32_t v_cda = sc->v_cda;
 	int	camoffset = entry * CDA_CAMDESC;
@@ -670,8 +649,7 @@ camentry(sc, entry, ea)
 }
 
 static void
-camprogram(sc)
-	struct snc_softc *sc;
+camprogram(struct snc_softc *sc)
 {
         struct ifmultiaddr      *ifma;
 	struct ifnet *ifp;
@@ -732,8 +710,7 @@ camprogram(sc)
 
 #ifdef SNCDEBUG
 static void
-camdump(sc)
-	struct snc_softc *sc;
+camdump(struct snc_softc *sc)
 {
 	int	i;
 
@@ -758,8 +735,7 @@ camdump(sc)
 #endif
 
 static void
-initialise_tda(sc)
-	struct snc_softc *sc;
+initialise_tda(struct snc_softc *sc)
 {
 	struct mtd *mtd;
 	int	i;
@@ -780,8 +756,7 @@ initialise_tda(sc)
 }
 
 static void
-initialise_rda(sc)
-	struct snc_softc *sc;
+initialise_rda(struct snc_softc *sc)
 {
 	int		i;
 	u_int32_t	vv_rda = 0;
@@ -809,8 +784,7 @@ initialise_rda(sc)
 }
 
 static void
-initialise_rra(sc)
-	struct snc_softc *sc;
+initialise_rra(struct snc_softc *sc)
 {
 	int	i;
 	u_int	v;
@@ -842,8 +816,7 @@ initialise_rra(sc)
 }
 
 void
-sncintr(arg)
-	void	*arg;
+sncintr(void *arg)
 {
 	struct snc_softc *sc = (struct snc_softc *)arg;
 	int	isr;
@@ -912,8 +885,7 @@ sncintr(arg)
  * Transmit interrupt routine
  */
 static void
-sonictxint(sc)
-	struct snc_softc *sc;
+sonictxint(struct snc_softc *sc)
 {
 	struct mtd	*mtd;
 	u_int32_t	txp;
@@ -990,8 +962,7 @@ sonictxint(sc)
  * Receive interrupt routine
  */
 static void
-sonicrxint(sc)
-	struct snc_softc *sc;
+sonicrxint(struct snc_softc *sc)
 {
 	u_int32_t rda;
 	int	orra;
@@ -1084,10 +1055,7 @@ sonicrxint(sc)
  * appropriate protocol handler
  */
 static int
-sonic_read(sc, pkt, len)
-	struct snc_softc *sc;
-	u_int32_t pkt;
-	int len;
+sonic_read(struct snc_softc *sc, u_int32_t pkt, int len)
 {
 	struct ifnet *ifp = sc->sc_ifp;
 	struct ether_header *et;
@@ -1131,10 +1099,7 @@ sonic_read(sc, pkt, len)
  * munge the received packet into an mbuf chain
  */
 static struct mbuf *
-sonic_get(sc, pkt, datalen)
-	struct snc_softc *sc;
-	u_int32_t pkt;
-	int datalen;
+sonic_get(struct snc_softc *sc, u_int32_t pkt, int datalen)
 {
 	struct	mbuf *m, *top, **mp;
 	int	len;
@@ -1194,8 +1159,7 @@ sonic_get(sc, pkt, datalen)
  * Enable power on the interface.
  */
 int
-snc_enable(sc)
-	struct snc_softc *sc;
+snc_enable(struct snc_softc *sc)
 {
 
 #ifdef	SNCDEBUG
@@ -1217,8 +1181,7 @@ snc_enable(sc)
  * Disable power on the interface.
  */
 void
-snc_disable(sc)
-	struct snc_softc *sc;
+snc_disable(struct snc_softc *sc)
 {
 
 #ifdef	SNCDEBUG
diff --git a/sys/dev/snc/dp83932subr.c b/sys/dev/snc/dp83932subr.c
index 35c94a820907..a34c554aa5e1 100644
--- a/sys/dev/snc/dp83932subr.c
+++ b/sys/dev/snc/dp83932subr.c
@@ -73,9 +73,7 @@ static __inline u_int16_t snc_nec16_select_bank
  * to accept packets.
  */
 int
-sncsetup(sc, lladdr)
-	struct snc_softc	*sc;
-	u_int8_t *lladdr;
+sncsetup(struct snc_softc *sc, u_int8_t *lladdr)
 {
 	u_int32_t p, pp;
 	int	i;
@@ -172,8 +170,7 @@ sncsetup(sc, lladdr)
  * check if a specified irq is acceptable.
  */
 u_int8_t
-snc_nec16_validate_irq(irq)
-	int irq;
+snc_nec16_validate_irq(int irq)
 {
 	const u_int8_t encoded_irq[16] = {
 	    -1, -1, -1, 0, -1, 1, 2, -1, -1, 3, 4, -1, 5, 6, -1, -1
@@ -186,9 +183,7 @@ snc_nec16_validate_irq(irq)
  * specify irq to board.
  */
 int
-snc_nec16_register_irq(sc, irq)
-	struct snc_softc *sc;
-	int irq;
+snc_nec16_register_irq(struct snc_softc *sc, int irq)
 {
 	bus_space_tag_t iot = sc->sc_iot;
 	bus_space_handle_t ioh = sc->sc_ioh;
@@ -212,8 +207,7 @@ snc_nec16_register_irq(sc, irq)
  * check if a specified memory base address is acceptable.
  */
 int
-snc_nec16_validate_mem(maddr)
-	int maddr;
+snc_nec16_validate_mem(int maddr)
 {
 
 	/* Check on Normal mode with max range, only */
@@ -230,9 +224,7 @@ snc_nec16_validate_mem(maddr)
  * specify memory base address to board and map to first bank.
  */
 int
-snc_nec16_register_mem(sc, maddr)
-	struct snc_softc *sc;
-	int maddr;
+snc_nec16_register_mem(struct snc_softc *sc, int maddr)
 {
 	bus_space_tag_t iot = sc->sc_iot;
 	bus_space_handle_t ioh = sc->sc_ioh;
@@ -260,11 +252,8 @@ snc_nec16_register_mem(sc, maddr)
 }
 
 int
-snc_nec16_check_memory(iot, ioh, memt, memh)
-	bus_space_tag_t iot;
-	bus_space_handle_t ioh;
-	bus_space_tag_t memt;
-	bus_space_handle_t memh;
+snc_nec16_check_memory(bus_space_tag_t iot, bus_space_handle_t ioh,
+    bus_space_tag_t memt, bus_space_handle_t memh)
 {
 	u_int16_t val;
 	int i, j;
@@ -341,14 +330,9 @@ snc_nec16_check_memory(iot, ioh, memt, memh)
 }
 
 int
-snc_nec16_detectsubr(iot, ioh, memt, memh, irq, maddr, type)
-	bus_space_tag_t iot;
-	bus_space_handle_t ioh;
-	bus_space_tag_t memt;
-	bus_space_handle_t memh;
-	int irq;
-	int maddr;
-	u_int8_t type;
+snc_nec16_detectsubr(bus_space_tag_t iot, bus_space_handle_t ioh,
+    bus_space_tag_t memt, bus_space_handle_t memh, int irq, int maddr,
+    u_int8_t type)
 {
 	u_int16_t cr;
 	u_int8_t ident;
@@ -413,8 +397,7 @@ snc_nec16_detectsubr(iot, ioh, memt, memh, irq, maddr, type)
 #define	SNC_NEC_SERIES_PNP_CBUS2	0x3d
 
 u_int8_t *
-snc_nec16_detect_type(myea)
-	u_int8_t *myea;
+snc_nec16_detect_type(u_int8_t *myea)
 {
 	u_int32_t vendor = (myea[0] << 16) | (myea[1] << 8) | myea[2];
 	u_int8_t series = myea[3];
@@ -459,10 +442,8 @@ snc_nec16_detect_type(myea)
 }
 
 int
-snc_nec16_get_enaddr(iot, ioh, myea)
-	bus_space_tag_t iot;
-	bus_space_handle_t ioh;
-	u_int8_t *myea;
+snc_nec16_get_enaddr(bus_space_tag_t iot, bus_space_handle_t ioh,
+    u_int8_t *myea)
 {
 	u_int8_t eeprom[SNEC_EEPROM_SIZE];
 	u_int8_t rom_sum, sum = 0x00;
@@ -493,9 +474,7 @@ snc_nec16_get_enaddr(iot, ioh, myea)
  * read from NEC/SONIC NIC register.
  */
 u_int16_t
-snc_nec16_nic_get(sc, reg)
-	struct snc_softc *sc;
-	u_int8_t reg;
+snc_nec16_nic_get(struct snc_softc *sc, u_int8_t reg)
 {
 	u_int16_t val;
 
@@ -510,10 +489,7 @@ snc_nec16_nic_get(sc, reg)
  * write to NEC/SONIC NIC register.
  */
 void
-snc_nec16_nic_put(sc, reg, val)
-	struct snc_softc *sc;
-	u_int8_t reg;
-	u_int16_t val;
+snc_nec16_nic_put(struct snc_softc *sc, u_int8_t reg, u_int16_t val)
 {
 
 	/* select SONIC register */
@@ -527,10 +503,7 @@ snc_nec16_nic_put(sc, reg, val)
  * where exists specified (internal buffer memory) offset.
  */
 static __inline u_int16_t
-snc_nec16_select_bank(sc, base, offset)
-	struct snc_softc *sc;
-	u_int32_t base;
-	u_int32_t offset;
+snc_nec16_select_bank(struct snc_softc *sc, u_int32_t base, u_int32_t offset)
 {
 	bus_space_tag_t iot = sc->sc_iot;
 	bus_space_handle_t ioh = sc->sc_ioh;
@@ -565,11 +538,8 @@ snc_nec16_select_bank(sc, base, offset)
  * write to SONIC descriptors.
  */
 void
-snc_nec16_writetodesc(sc, base, offset, val)
-	struct snc_softc *sc;
-	u_int32_t base;
-	u_int32_t offset;
-	u_int16_t val;
+snc_nec16_writetodesc(struct snc_softc *sc, u_int32_t base, u_int32_t offset,
+    u_int16_t val)
 {
 	bus_space_tag_t memt = sc->sc_memt;
 	bus_space_handle_t memh = sc->sc_memh;
@@ -584,10 +554,7 @@ snc_nec16_writetodesc(sc, base, offset, val)
  * read from SONIC descriptors.
  */
 u_int16_t
-snc_nec16_readfromdesc(sc, base, offset)
-	struct snc_softc *sc;
-	u_int32_t base;
-	u_int32_t offset;
+snc_nec16_readfromdesc(struct snc_softc *sc, u_int32_t base, u_int32_t offset)
 {
 	bus_space_tag_t memt = sc->sc_memt;
 	bus_space_handle_t memh = sc->sc_memh;
@@ -602,11 +569,8 @@ snc_nec16_readfromdesc(sc, base, offset)
  * read from SONIC data buffer.
  */
 void
-snc_nec16_copyfrombuf(sc, dst, offset, size)
-	struct snc_softc *sc;
-	void *dst;
-	u_int32_t offset;
-	size_t size;
+snc_nec16_copyfrombuf(struct snc_softc *sc, void *dst, u_int32_t offset,
+    size_t size)
 {
 	bus_space_tag_t memt = sc->sc_memt;
 	bus_space_handle_t memh = sc->sc_memh;
@@ -644,11 +608,8 @@ snc_nec16_copyfrombuf(sc, dst, offset, size)
  * write to SONIC data buffer.
  */
 void
-snc_nec16_copytobuf(sc, src, offset, size)
-	struct snc_softc *sc;
-	void *src;
-	u_int32_t offset;
-	size_t size;
+snc_nec16_copytobuf(struct snc_softc *sc, void *src, u_int32_t offset,
+    size_t size)
 {
 	bus_space_tag_t memt = sc->sc_memt;
 	bus_space_handle_t memh = sc->sc_memh;
@@ -688,10 +649,7 @@ snc_nec16_copytobuf(sc, src, offset, size)
  * write (fill) 0 to SONIC data buffer.
  */
 void
-snc_nec16_zerobuf(sc, offset, size)
-	struct snc_softc *sc;
-	u_int32_t offset;
-	size_t size;
+snc_nec16_zerobuf(struct snc_softc *sc, u_int32_t offset, size_t size)
 {
 	bus_space_tag_t memt = sc->sc_memt;
 	bus_space_handle_t memh = sc->sc_memh;
@@ -735,10 +693,8 @@ snc_nec16_zerobuf(sc, offset, size)
 #define	SNEC_EEP_DELAY	1000
 
 void
-snc_nec16_read_eeprom(iot, ioh, data)
-	bus_space_tag_t iot;
-	bus_space_handle_t ioh;
-	u_int8_t *data;
+snc_nec16_read_eeprom(bus_space_tag_t iot, bus_space_handle_t ioh,
+    u_int8_t *data)
 {
 	u_int8_t n, val, bit;
 
@@ -851,9 +807,7 @@ snc_nec16_read_eeprom(iot, ioh, data)
 
 #ifdef	SNCDEBUG
 void
-snc_nec16_dump_reg(iot, ioh)
-	bus_space_tag_t iot;
-	bus_space_handle_t ioh;
+snc_nec16_dump_reg(bus_space_tag_t iot, bus_space_handle_t ioh)
 {
 	u_int8_t n;
 	u_int16_t val;
diff --git a/sys/dev/snc/if_snc.c b/sys/dev/snc/if_snc.c
index 02ac7eb764fb..914a406f635c 100644
--- a/sys/dev/snc/if_snc.c
+++ b/sys/dev/snc/if_snc.c
@@ -66,9 +66,7 @@ devclass_t snc_devclass;
  * Allocate a port resource with the given resource id.
  */
 int
-snc_alloc_port(dev, rid)
-	device_t dev;
-	int rid;
+snc_alloc_port(device_t dev, int rid)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 	struct resource *res;
@@ -91,9 +89,7 @@ snc_alloc_port(dev, rid)
  * Allocate a memory resource with the given resource id.
  */
 int
-snc_alloc_memory(dev, rid)
-	device_t dev;
-	int rid;
+snc_alloc_memory(device_t dev, int rid)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 	struct resource *res;
@@ -116,10 +112,7 @@ snc_alloc_memory(dev, rid)
  * Allocate an irq resource with the given resource id.
  */
 int
-snc_alloc_irq(dev, rid, flags)
-	device_t dev;
-	int rid;
-	int flags;
+snc_alloc_irq(device_t dev, int rid, int flags)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 	struct resource *res;
@@ -139,8 +132,7 @@ snc_alloc_irq(dev, rid, flags)
  * Release all resources
  */
 void
-snc_release_resources(dev)
-	device_t dev;
+snc_release_resources(device_t dev)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 
@@ -170,9 +162,7 @@ snc_release_resources(dev)
  ****************************************************************/
 
 int
-snc_probe(dev, type)
-     device_t dev;
-     int type;
+snc_probe(device_t dev, int type)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 
@@ -188,8 +178,7 @@ snc_probe(dev, type)
  ****************************************************************/
 
 int
-snc_attach(dev)
-	device_t dev;
+snc_attach(device_t dev)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 	u_int8_t myea[ETHER_ADDR_LEN];
@@ -253,8 +242,7 @@ snc_attach(dev)
  ****************************************************************/
 
 int
-snc_shutdown(dev)
-	device_t dev;
+snc_shutdown(device_t dev)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 
diff --git a/sys/dev/snc/if_snc_cbus.c b/sys/dev/snc/if_snc_cbus.c
index e859b7ad8d75..c3c7946a4b65 100644
--- a/sys/dev/snc/if_snc_cbus.c
+++ b/sys/dev/snc/if_snc_cbus.c
@@ -68,8 +68,7 @@ static struct isa_pnp_id snc_ids[] = {
 };
 
 static void
-snc_isapnp_reconfig(dev)
-	device_t dev;
+snc_isapnp_reconfig(device_t dev)
 {
 	struct isa_device *idev = DEVTOISA(dev);
         struct isa_config config;
@@ -111,8 +110,7 @@ snc_isapnp_reconfig(dev)
 }
 
 static int
-snc_isa_probe(dev)
-	device_t dev;
+snc_isa_probe(device_t dev)
 {
 	struct snc_softc *sc = device_get_softc(dev);
 	int type;
@@ -177,8 +175,7 @@ snc_isa_probe(dev)
 }
 
 static int
-snc_isa_attach(dev)
-	device_t dev;
+snc_isa_attach(device_t dev)
 {
 	struct snc_softc *sc = device_get_softc(dev);