Index: sys/mips/include/proc.h
===================================================================
--- sys/mips/include/proc.h
+++ sys/mips/include/proc.h
@@ -81,11 +81,11 @@
 	size_t		md_tls_tcb_offset;	/* TCB offset */
 };
 
+#define	MAXARGS		8
 struct syscall_args {
 	u_int code;
 	struct sysent *callp;
-	register_t args[8];
-	struct trapframe *trapframe;
+	register_t args[MAXARGS];
 };
 
 #ifdef __mips_n64
Index: sys/mips/mips/trap.c
===================================================================
--- sys/mips/mips/trap.c
+++ sys/mips/mips/trap.c
@@ -349,9 +349,9 @@
 	bzero(sa->args, sizeof(sa->args));
 
 	/* compute next PC after syscall instruction */
-	td->td_pcb->pcb_tpc = sa->trapframe->pc; /* Remember if restart */
-	if (DELAYBRANCH(sa->trapframe->cause))	 /* Check BD bit */
-		locr0->pc = MipsEmulateBranch(locr0, sa->trapframe->pc, 0, 0);
+	td->td_pcb->pcb_tpc = locr0->pc; /* Remember if restart */
+	if (DELAYBRANCH(locr0->cause))	 /* Check BD bit */
+		locr0->pc = MipsEmulateBranch(locr0, locr0->pc, 0, 0);
 	else
 		locr0->pc += sizeof(int);
 	sa->code = locr0->v0;
@@ -781,7 +781,6 @@
 
 	case T_SYSCALL + T_USER:
 		{
-			td->td_sa.trapframe = trapframe;
 			syscallenter(td);
 
 #if !defined(SMP) && (defined(DDB) || defined(DEBUG))