diff --git a/sys/kern/uipc_domain.c b/sys/kern/uipc_domain.c
index 7cd91188b070..29e7fc1ad4e1 100644
--- a/sys/kern/uipc_domain.c
+++ b/sys/kern/uipc_domain.c
@@ -197,11 +197,11 @@ socket_zone_change(void *tag)
 static void
 domaininit(void *dummy)
 {
+
 	/*
 	 * Before we do any setup, make sure to initialize the
 	 * zone allocator we get struct sockets from.
 	 */
-
 	socket_zone = uma_zcreate("socket", sizeof(struct socket), NULL, NULL,
 	    NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
 	uma_zone_set_max(socket_zone, maxsockets);
@@ -229,6 +229,7 @@ domaininit(void *dummy)
 static void
 domainfinalize(void *dummy)
 {
+
 	mtx_lock(&dom_mtx);
 	KASSERT(domain_init_status == 1, ("domainfinalize called too late!"));
 	domain_init_status = 2;
@@ -239,12 +240,10 @@ domainfinalize(void *dummy)
 }
 
 struct protosw *
-pffindtype(family, type)
-	int family;
-	int type;
+pffindtype(int family, int type)
 {
-	register struct domain *dp;
-	register struct protosw *pr;
+	struct domain *dp;
+	struct protosw *pr;
 
 	for (dp = domains; dp; dp = dp->dom_next)
 		if (dp->dom_family == family)
@@ -258,13 +257,10 @@ pffindtype(family, type)
 }
 
 struct protosw *
-pffindproto(family, protocol, type)
-	int family;
-	int protocol;
-	int type;
+pffindproto(int family, int protocol, int type)
 {
-	register struct domain *dp;
-	register struct protosw *pr;
+	struct domain *dp;
+	struct protosw *pr;
 	struct protosw *maybe = 0;
 
 	if (family == 0)
@@ -290,9 +286,7 @@ pffindproto(family, protocol, type)
  * accept requests before it is registered.
  */
 int
-pf_proto_register(family, npr)
-	int family;
-	struct protosw *npr;
+pf_proto_register(int family, struct protosw *npr)
 {
 	struct domain *dp;
 	struct protosw *pr, *fpr;
@@ -359,10 +353,7 @@ pf_proto_register(family, npr)
  * all sockets and release all locks and memory references.
  */
 int
-pf_proto_unregister(family, protocol, type)
-	int family;
-	int protocol;
-	int type;
+pf_proto_unregister(int family, int protocol, int type)
 {
 	struct domain *dp;
 	struct protosw *pr, *dpr;
@@ -427,12 +418,10 @@ pf_proto_unregister(family, protocol, type)
 }
 
 void
-pfctlinput(cmd, sa)
-	int cmd;
-	struct sockaddr *sa;
+pfctlinput(int cmd, struct sockaddr *sa)
 {
-	register struct domain *dp;
-	register struct protosw *pr;
+	struct domain *dp;
+	struct protosw *pr;
 
 	for (dp = domains; dp; dp = dp->dom_next)
 		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
@@ -441,10 +430,7 @@ pfctlinput(cmd, sa)
 }
 
 void
-pfctlinput2(cmd, sa, ctlparam)
-	int cmd;
-	struct sockaddr *sa;
-	void *ctlparam;
+pfctlinput2(int cmd, struct sockaddr *sa, void *ctlparam)
 {
 	struct domain *dp;
 	struct protosw *pr;
@@ -467,11 +453,10 @@ pfctlinput2(cmd, sa, ctlparam)
 }
 
 static void
-pfslowtimo(arg)
-	void *arg;
+pfslowtimo(void *arg)
 {
-	register struct domain *dp;
-	register struct protosw *pr;
+	struct domain *dp;
+	struct protosw *pr;
 
 	NET_ASSERT_GIANT();
 
@@ -483,11 +468,10 @@ pfslowtimo(arg)
 }
 
 static void
-pffasttimo(arg)
-	void *arg;
+pffasttimo(void *arg)
 {
-	register struct domain *dp;
-	register struct protosw *pr;
+	struct domain *dp;
+	struct protosw *pr;
 
 	NET_ASSERT_GIANT();
 
diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c
index a6ce50087a4e..2fdb407abdff 100644
--- a/sys/kern/uipc_mbuf.c
+++ b/sys/kern/uipc_mbuf.c
@@ -1169,7 +1169,7 @@ m_split(struct mbuf *m0, int len0, int wait)
  */
 struct mbuf *
 m_devget(char *buf, int totlen, int off, struct ifnet *ifp,
-	 void (*copy)(char *from, caddr_t to, u_int len))
+    void (*copy)(char *from, caddr_t to, u_int len))
 {
 	struct mbuf *m;
 	struct mbuf *top = NULL, **mp = &top;
diff --git a/sys/kern/uipc_sockbuf.c b/sys/kern/uipc_sockbuf.c
index a35a2c664ef9..25d9200f5d35 100644
--- a/sys/kern/uipc_sockbuf.c
+++ b/sys/kern/uipc_sockbuf.c
@@ -349,7 +349,6 @@ sbdestroy(struct sockbuf *sb, struct socket *so)
 	sbrelease_internal(sb, so);
 }
 
-
 /*
  * Routines to add and remove data from an mbuf queue.
  *
@@ -902,7 +901,6 @@ sbdrop(struct sockbuf *sb, int len)
 	SOCKBUF_UNLOCK(sb);
 }
 
-
 /*
  * Maintain a pointer and offset pair into the socket buffer mbuf chain to
  * avoid traversal of the entire socket buffer for larger offsets.
@@ -981,12 +979,9 @@ sbdroprecord(struct sockbuf *sb)
  * type for presentation on a socket buffer.
  */
 struct mbuf *
-sbcreatecontrol(p, size, type, level)
-	caddr_t p;
-	register int size;
-	int type, level;
+sbcreatecontrol(caddr_t p, int size, int type, int level)
 {
-	register struct cmsghdr *cp;
+	struct cmsghdr *cp;
 	struct mbuf *m;
 
 	if (CMSG_SPACE((u_int)size) > MCLBYTES)
@@ -1020,6 +1015,7 @@ sbcreatecontrol(p, size, type, level)
 void
 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
 {
+
 	xsb->sb_cc = sb->sb_cc;
 	xsb->sb_hiwat = sb->sb_hiwat;
 	xsb->sb_mbcnt = sb->sb_mbcnt;
diff --git a/sys/kern/uipc_socket.c b/sys/kern/uipc_socket.c
index b5e907a1dabb..67b82b4f439d 100644
--- a/sys/kern/uipc_socket.c
+++ b/sys/kern/uipc_socket.c
@@ -327,13 +327,8 @@ sodealloc(struct socket *so)
  * closed with soclose().
  */
 int
-socreate(dom, aso, type, proto, cred, td)
-	int dom;
-	struct socket **aso;
-	int type;
-	int proto;
-	struct ucred *cred;
-	struct thread *td;
+socreate(int dom, struct socket **aso, int type, int proto,
+    struct ucred *cred, struct thread *td)
 {
 	struct protosw *prp;
 	struct socket *so;
@@ -406,11 +401,9 @@ SYSCTL_INT(_regression, OID_AUTO, sonewconn_earlytest, CTLFLAG_RW,
  * Note: the ref count on the socket is 0 on return.
  */
 struct socket *
-sonewconn(head, connstatus)
-	register struct socket *head;
-	int connstatus;
+sonewconn(struct socket *head, int connstatus)
 {
-	register struct socket *so;
+	struct socket *so;
 	int over;
 
 	ACCEPT_LOCK();
@@ -492,10 +485,7 @@ sonewconn(head, connstatus)
 }
 
 int
-sobind(so, nam, td)
-	struct socket *so;
-	struct sockaddr *nam;
-	struct thread *td;
+sobind(struct socket *so, struct sockaddr *nam, struct thread *td)
 {
 
 	return ((*so->so_proto->pr_usrreqs->pru_bind)(so, nam, td));
@@ -514,18 +504,14 @@ sobind(so, nam, td)
  * socket-layer test and set to avoid races at the socket layer.
  */
 int
-solisten(so, backlog, td)
-	struct socket *so;
-	int backlog;
-	struct thread *td;
+solisten(struct socket *so, int backlog, struct thread *td)
 {
 
 	return ((*so->so_proto->pr_usrreqs->pru_listen)(so, backlog, td));
 }
 
 int
-solisten_proto_check(so)
-	struct socket *so;
+solisten_proto_check(struct socket *so)
 {
 
 	SOCK_LOCK_ASSERT(so);
@@ -537,9 +523,7 @@ solisten_proto_check(so)
 }
 
 void
-solisten_proto(so, backlog)
-	struct socket *so;
-	int backlog;
+solisten_proto(struct socket *so, int backlog)
 {
 
 	SOCK_LOCK_ASSERT(so);
@@ -571,8 +555,7 @@ solisten_proto(so, backlog)
  * conditions are right, can succeed.
  */
 void
-sofree(so)
-	struct socket *so;
+sofree(struct socket *so)
 {
 	struct protosw *pr = so->so_proto;
 	struct socket *head;
@@ -647,8 +630,7 @@ sofree(so)
  * not be freed until the ref count reaches zero.
  */
 int
-soclose(so)
-	struct socket *so;
+soclose(struct socket *so)
 {
 	int error = 0;
 
@@ -723,8 +705,7 @@ soclose(so)
  * to review in the future.
  */
 void
-soabort(so)
-	struct socket *so;
+soabort(struct socket *so)
 {
 
 	/*
@@ -747,9 +728,7 @@ soabort(so)
 }
 
 int
-soaccept(so, nam)
-	struct socket *so;
-	struct sockaddr **nam;
+soaccept(struct socket *so, struct sockaddr **nam)
 {
 	int error;
 
@@ -762,10 +741,7 @@ soaccept(so, nam)
 }
 
 int
-soconnect(so, nam, td)
-	struct socket *so;
-	struct sockaddr *nam;
-	struct thread *td;
+soconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
 {
 	int error;
 
@@ -793,17 +769,14 @@ soconnect(so, nam, td)
 }
 
 int
-soconnect2(so1, so2)
-	struct socket *so1;
-	struct socket *so2;
+soconnect2(struct socket *so1, struct socket *so2)
 {
 
 	return ((*so1->so_proto->pr_usrreqs->pru_connect2)(so1, so2));
 }
 
 int
-sodisconnect(so)
-	struct socket *so;
+sodisconnect(struct socket *so)
 {
 	int error;
 
@@ -946,14 +919,8 @@ sosend_copyin(struct uio *uio, struct mbuf **retmp, int atomic, long *space,
 #define	SBLOCKWAIT(f)	(((f) & MSG_DONTWAIT) ? M_NOWAIT : M_WAITOK)
 
 int
-sosend_dgram(so, addr, uio, top, control, flags, td)
-	struct socket *so;
-	struct sockaddr *addr;
-	struct uio *uio;
-	struct mbuf *top;
-	struct mbuf *control;
-	int flags;
-	struct thread *td;
+sosend_dgram(struct socket *so, struct sockaddr *addr, struct uio *uio,
+    struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
 {
 	long space, resid;
 	int clen = 0, error, dontroute;
@@ -1126,14 +1093,8 @@ sosend_dgram(so, addr, uio, top, control, flags, td)
  * on return.
  */
 int
-sosend_generic(so, addr, uio, top, control, flags, td)
-	struct socket *so;
-	struct sockaddr *addr;
-	struct uio *uio;
-	struct mbuf *top;
-	struct mbuf *control;
-	int flags;
-	struct thread *td;
+sosend_generic(struct socket *so, struct sockaddr *addr, struct uio *uio,
+    struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
 {
 	long space, resid;
 	int clen = 0, error, dontroute;
@@ -1314,14 +1275,8 @@ sosend_generic(so, addr, uio, top, control, flags, td)
 }
 
 int
-sosend(so, addr, uio, top, control, flags, td)
-	struct socket *so;
-	struct sockaddr *addr;
-	struct uio *uio;
-	struct mbuf *top;
-	struct mbuf *control;
-	int flags;
-	struct thread *td;
+sosend(struct socket *so, struct sockaddr *addr, struct uio *uio,
+    struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
 {
 
 	/* XXXRW: Temporary debugging. */
@@ -1341,10 +1296,7 @@ sosend(so, addr, uio, top, control, flags, td)
  * unable to return an mbuf chain to the caller.
  */
 static int
-soreceive_rcvoob(so, uio, flags)
-	struct socket *so;
-	struct uio *uio;
-	int flags;
+soreceive_rcvoob(struct socket *so, struct uio *uio, int flags)
 {
 	struct protosw *pr = so->so_proto;
 	struct mbuf *m;
@@ -1437,13 +1389,8 @@ sockbuf_pushsync(struct sockbuf *sb, struct mbuf *nextrecord)
  * the count in uio_resid.
  */
 int
-soreceive_generic(so, psa, uio, mp0, controlp, flagsp)
-	struct socket *so;
-	struct sockaddr **psa;
-	struct uio *uio;
-	struct mbuf **mp0;
-	struct mbuf **controlp;
-	int *flagsp;
+soreceive_generic(struct socket *so, struct sockaddr **psa, struct uio *uio,
+    struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
 {
 	struct mbuf *m, **mp;
 	int flags, len, error, offset;
@@ -1895,13 +1842,8 @@ soreceive_generic(so, psa, uio, mp0, controlp, flagsp)
 }
 
 int
-soreceive(so, psa, uio, mp0, controlp, flagsp)
-	struct socket *so;
-	struct sockaddr **psa;
-	struct uio *uio;
-	struct mbuf **mp0;
-	struct mbuf **controlp;
-	int *flagsp;
+soreceive(struct socket *so, struct sockaddr **psa, struct uio *uio,
+    struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
 {
 
 	/* XXXRW: Temporary debugging. */
@@ -1913,9 +1855,7 @@ soreceive(so, psa, uio, mp0, controlp, flagsp)
 }
 
 int
-soshutdown(so, how)
-	struct socket *so;
-	int how;
+soshutdown(struct socket *so, int how)
 {
 	struct protosw *pr = so->so_proto;
 
@@ -1930,8 +1870,7 @@ soshutdown(so, how)
 }
 
 void
-sorflush(so)
-	struct socket *so;
+sorflush(struct socket *so)
 {
 	struct sockbuf *sb = &so->so_rcv;
 	struct protosw *pr = so->so_proto;
@@ -1977,11 +1916,7 @@ sorflush(so)
  * routines.
  */
 int
-sooptcopyin(sopt, buf, len, minlen)
-	struct	sockopt *sopt;
-	void	*buf;
-	size_t	len;
-	size_t	minlen;
+sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen)
 {
 	size_t	valsize;
 
@@ -2024,9 +1959,7 @@ so_setsockopt(struct socket *so, int level, int optname, void *optval,
 }
 
 int
-sosetopt(so, sopt)
-	struct socket *so;
-	struct sockopt *sopt;
+sosetopt(struct socket *so, struct sockopt *sopt)
 {
 	int	error, optval;
 	struct	linger l;
@@ -2241,9 +2174,7 @@ sooptcopyout(struct sockopt *sopt, const void *buf, size_t len)
 }
 
 int
-sogetopt(so, sopt)
-	struct socket *so;
-	struct sockopt *sopt;
+sogetopt(struct socket *so, struct sockopt *sopt)
 {
 	int	error, optval;
 	struct	linger l;
@@ -2507,9 +2438,9 @@ soopt_mcopyout(struct sockopt *sopt, struct mbuf *m)
  * out-of-band data, which will then notify socket consumers.
  */
 void
-sohasoutofband(so)
-	struct socket *so;
+sohasoutofband(struct socket *so)
 {
+
 	if (so->so_sigio != NULL)
 		pgsigio(&so->so_sigio, SIGURG, 0);
 	selwakeuppri(&so->so_rcv.sb_sel, PSOCK);
@@ -2608,74 +2539,86 @@ soo_kqfilter(struct file *fp, struct knote *kn)
 int
 pru_accept_notsupp(struct socket *so, struct sockaddr **nam)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_attach_notsupp(struct socket *so, int proto, struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_bind_notsupp(struct socket *so, struct sockaddr *nam, struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_connect_notsupp(struct socket *so, struct sockaddr *nam, struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_connect2_notsupp(struct socket *so1, struct socket *so2)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_control_notsupp(struct socket *so, u_long cmd, caddr_t data,
-	struct ifnet *ifp, struct thread *td)
+    struct ifnet *ifp, struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_disconnect_notsupp(struct socket *so)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_listen_notsupp(struct socket *so, int backlog, struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_peeraddr_notsupp(struct socket *so, struct sockaddr **nam)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_rcvd_notsupp(struct socket *so, int flags)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_rcvoob_notsupp(struct socket *so, struct mbuf *m, int flags)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_send_notsupp(struct socket *so, int flags, struct mbuf *m,
-	struct sockaddr *addr, struct mbuf *control, struct thread *td)
+    struct sockaddr *addr, struct mbuf *control, struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
@@ -2686,6 +2629,7 @@ pru_send_notsupp(struct socket *so, int flags, struct mbuf *m,
 int
 pru_sense_null(struct socket *so, struct stat *sb)
 {
+
 	sb->st_blksize = so->so_snd.sb_hiwat;
 	return 0;
 }
@@ -2693,34 +2637,38 @@ pru_sense_null(struct socket *so, struct stat *sb)
 int
 pru_shutdown_notsupp(struct socket *so)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_sockaddr_notsupp(struct socket *so, struct sockaddr **nam)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_sosend_notsupp(struct socket *so, struct sockaddr *addr, struct uio *uio,
-	struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
+    struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_soreceive_notsupp(struct socket *so, struct sockaddr **paddr,
-	struct uio *uio, struct mbuf **mp0, struct mbuf **controlp,
-	int *flagsp)
+    struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
 {
+
 	return EOPNOTSUPP;
 }
 
 int
 pru_sopoll_notsupp(struct socket *so, int events, struct ucred *cred,
-	struct thread *td)
+    struct thread *td)
 {
+
 	return EOPNOTSUPP;
 }
 
@@ -2866,8 +2814,7 @@ sysctl_somaxconn(SYSCTL_HANDLER_ARGS)
  * here will sometimes cause software-interrupt process scheduling.
  */
 void
-soisconnecting(so)
-	register struct socket *so;
+soisconnecting(struct socket *so)
 {
 
 	SOCK_LOCK(so);
@@ -2877,8 +2824,7 @@ soisconnecting(so)
 }
 
 void
-soisconnected(so)
-	struct socket *so;
+soisconnected(struct socket *so)
 {
 	struct socket *head;
 
@@ -2919,8 +2865,7 @@ soisconnected(so)
 }
 
 void
-soisdisconnecting(so)
-	register struct socket *so;
+soisdisconnecting(struct socket *so)
 {
 
 	/*
@@ -2939,8 +2884,7 @@ soisdisconnecting(so)
 }
 
 void
-soisdisconnected(so)
-	register struct socket *so;
+soisdisconnected(struct socket *so)
 {
 
 	/*
@@ -2984,6 +2928,7 @@ sodupsockaddr(const struct sockaddr *sa, int mflags)
 void
 sotoxsocket(struct socket *so, struct xsocket *xso)
 {
+
 	xso->xso_len = sizeof *xso;
 	xso->xso_so = so;
 	xso->so_type = so->so_type;
diff --git a/sys/kern/uipc_syscalls.c b/sys/kern/uipc_syscalls.c
index 463ae89984a9..1e62b5c46001 100644
--- a/sys/kern/uipc_syscalls.c
+++ b/sys/kern/uipc_syscalls.c
@@ -153,7 +153,7 @@ getsock(struct filedesc *fdp, int fd, struct file **fpp, u_int *fflagp)
 int
 socket(td, uap)
 	struct thread *td;
-	register struct socket_args /* {
+	struct socket_args /* {
 		int	domain;
 		int	type;
 		int	protocol;
@@ -198,7 +198,7 @@ socket(td, uap)
 int
 bind(td, uap)
 	struct thread *td;
-	register struct bind_args /* {
+	struct bind_args /* {
 		int	s;
 		caddr_t	name;
 		int	namelen;
@@ -251,7 +251,7 @@ kern_bind(td, fd, sa)
 int
 listen(td, uap)
 	struct thread *td;
-	register struct listen_args /* {
+	struct listen_args /* {
 		int	s;
 		int	backlog;
 	} */ *uap;
@@ -287,7 +287,7 @@ listen(td, uap)
 static int
 accept1(td, uap, compat)
 	struct thread *td;
-	register struct accept_args /* {
+	struct accept_args /* {
 		int	s;
 		struct sockaddr	* __restrict name;
 		socklen_t	* __restrict anamelen;
@@ -520,7 +520,7 @@ oaccept(td, uap)
 int
 connect(td, uap)
 	struct thread *td;
-	register struct connect_args /* {
+	struct connect_args /* {
 		int	s;
 		caddr_t	name;
 		int	namelen;
@@ -603,14 +603,14 @@ kern_connect(td, fd, sa)
 int
 socketpair(td, uap)
 	struct thread *td;
-	register struct socketpair_args /* {
+	struct socketpair_args /* {
 		int	domain;
 		int	type;
 		int	protocol;
 		int	*rsv;
 	} */ *uap;
 {
-	register struct filedesc *fdp = td->td_proc->p_fd;
+	struct filedesc *fdp = td->td_proc->p_fd;
 	struct file *fp1, *fp2;
 	struct socket *so1, *so2;
 	int fd, error, sv[2];
@@ -690,9 +690,9 @@ socketpair(td, uap)
 
 static int
 sendit(td, s, mp, flags)
-	register struct thread *td;
+	struct thread *td;
 	int s;
-	register struct msghdr *mp;
+	struct msghdr *mp;
 	int flags;
 {
 	struct mbuf *control;
@@ -725,7 +725,7 @@ sendit(td, s, mp, flags)
 			goto bad;
 #ifdef COMPAT_OLDSOCK
 		if (mp->msg_flags == MSG_COMPAT) {
-			register struct cmsghdr *cm;
+			struct cmsghdr *cm;
 
 			M_PREPEND(control, sizeof(*cm), M_TRYWAIT);
 			if (control == 0) {
@@ -834,7 +834,7 @@ kern_sendit(td, s, mp, flags, control, segflg)
 int
 sendto(td, uap)
 	struct thread *td;
-	register struct sendto_args /* {
+	struct sendto_args /* {
 		int	s;
 		caddr_t	buf;
 		size_t	len;
@@ -865,7 +865,7 @@ sendto(td, uap)
 int
 osend(td, uap)
 	struct thread *td;
-	register struct osend_args /* {
+	struct osend_args /* {
 		int	s;
 		caddr_t	buf;
 		int	len;
@@ -1131,7 +1131,7 @@ recvit(td, s, mp, namelenp)
 int
 recvfrom(td, uap)
 	struct thread *td;
-	register struct recvfrom_args /* {
+	struct recvfrom_args /* {
 		int	s;
 		caddr_t	buf;
 		size_t	len;
@@ -1180,7 +1180,7 @@ orecvfrom(td, uap)
 int
 orecv(td, uap)
 	struct thread *td;
-	register struct orecv_args /* {
+	struct orecv_args /* {
 		int	s;
 		caddr_t	buf;
 		int	len;
@@ -1276,7 +1276,7 @@ recvmsg(td, uap)
 int
 shutdown(td, uap)
 	struct thread *td;
-	register struct shutdown_args /* {
+	struct shutdown_args /* {
 		int	s;
 		int	how;
 	} */ *uap;
@@ -1300,7 +1300,7 @@ shutdown(td, uap)
 int
 setsockopt(td, uap)
 	struct thread *td;
-	register struct setsockopt_args /* {
+	struct setsockopt_args /* {
 		int	s;
 		int	level;
 		int	name;
@@ -1364,7 +1364,7 @@ kern_setsockopt(td, s, level, name, val, valseg, valsize)
 int
 getsockopt(td, uap)
 	struct thread *td;
-	register struct getsockopt_args /* {
+	struct getsockopt_args /* {
 		int	s;
 		int	level;
 		int	name;
@@ -1448,7 +1448,7 @@ kern_getsockopt(td, s, level, name, val, valseg, valsize)
 static int
 getsockname1(td, uap, compat)
 	struct thread *td;
-	register struct getsockname_args /* {
+	struct getsockname_args /* {
 		int	fdes;
 		struct sockaddr * __restrict asa;
 		socklen_t * __restrict alen;
@@ -1544,7 +1544,7 @@ ogetsockname(td, uap)
 static int
 getpeername1(td, uap, compat)
 	struct thread *td;
-	register struct getpeername_args /* {
+	struct getpeername_args /* {
 		int	fdes;
 		struct sockaddr * __restrict	asa;
 		socklen_t * __restrict	alen;
@@ -1645,8 +1645,8 @@ sockargs(mp, buf, buflen, type)
 	caddr_t buf;
 	int buflen, type;
 {
-	register struct sockaddr *sa;
-	register struct mbuf *m;
+	struct sockaddr *sa;
+	struct mbuf *m;
 	int error;
 
 	if ((u_int)buflen > MLEN) {