Index: head/sys/kern/kern_proc.c
===================================================================
--- head/sys/kern/kern_proc.c
+++ head/sys/kern/kern_proc.c
@@ -354,10 +354,9 @@
  * The caller must hold proctree_lock.
  */
 struct pgrp *
-pgfind(pgid)
-	register pid_t pgid;
+pgfind(pid_t pgid)
 {
-	register struct pgrp *pgrp;
+	struct pgrp *pgrp;
 
 	sx_assert(&proctree_lock, SX_LOCKED);
 
@@ -435,11 +434,7 @@
  * Begin a new session if required.
  */
 int
-enterpgrp(p, pgid, pgrp, sess)
-	register struct proc *p;
-	pid_t pgid;
-	struct pgrp *pgrp;
-	struct session *sess;
+enterpgrp(struct proc *p, pid_t pgid, struct pgrp *pgrp, struct session *sess)
 {
 
 	sx_assert(&proctree_lock, SX_XLOCKED);
@@ -500,9 +495,7 @@
  * Move p to an existing process group
  */
 int
-enterthispgrp(p, pgrp)
-	register struct proc *p;
-	struct pgrp *pgrp;
+enterthispgrp(struct proc *p, struct pgrp *pgrp)
 {
 
 	sx_assert(&proctree_lock, SX_XLOCKED);
@@ -527,9 +520,7 @@
  * Move p to a process group
  */
 static void
-doenterpgrp(p, pgrp)
-	struct proc *p;
-	struct pgrp *pgrp;
+doenterpgrp(struct proc *p, struct pgrp *pgrp)
 {
 	struct pgrp *savepgrp;
 
@@ -566,8 +557,7 @@
  * remove process from process group
  */
 int
-leavepgrp(p)
-	register struct proc *p;
+leavepgrp(struct proc *p)
 {
 	struct pgrp *savepgrp;
 
@@ -588,8 +578,7 @@
  * delete a process group
  */
 static void
-pgdelete(pgrp)
-	register struct pgrp *pgrp;
+pgdelete(struct pgrp *pgrp)
 {
 	struct session *savesess;
 	struct tty *tp;
@@ -622,9 +611,7 @@
 }
 
 static void
-pgadjustjobc(pgrp, entering)
-	struct pgrp *pgrp;
-	int entering;
+pgadjustjobc(struct pgrp *pgrp, int entering)
 {
 
 	PGRP_LOCK(pgrp);
@@ -764,10 +751,9 @@
  * hang-up all process in that group.
  */
 static void
-orphanpg(pg)
-	struct pgrp *pg;
+orphanpg(struct pgrp *pg)
 {
-	register struct proc *p;
+	struct proc *p;
 
 	PGRP_LOCK_ASSERT(pg, MA_OWNED);
 
@@ -812,9 +798,9 @@
 
 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
 {
-	register struct pgrp *pgrp;
-	register struct proc *p;
-	register int i;
+	struct pgrp *pgrp;
+	struct proc *p;
+	int i;
 
 	for (i = 0; i <= pgrphash; i++) {
 		if (!LIST_EMPTY(&pgrphashtbl[i])) {