diff --git a/sys/powerpc/aim/trap.c b/sys/powerpc/aim/trap.c
index 0ab58f3830f3..ee9c7d30ef0b 100644
--- a/sys/powerpc/aim/trap.c
+++ b/sys/powerpc/aim/trap.c
@@ -85,8 +85,6 @@ static int	fix_unaligned(struct thread *td, struct trapframe *frame);
 static int	handle_onfault(struct trapframe *frame);
 static void	syscall(struct trapframe *frame);
 
-static __inline void	setusr(u_int);
-
 int	setfault(faultbuf);		/* defined in locore.S */
 
 /* Why are these not defined in a header? */
@@ -558,13 +556,6 @@ trap_pfault(struct trapframe *frame, int user)
 	return (SIGSEGV);
 }
 
-static __inline void
-setusr(u_int content)
-{
-	__asm __volatile ("isync; mtsr %0,%1; isync"
-		      :: "n"(USER_SR), "r"(content));
-}
-
 int
 badaddr(void *addr, size_t size)
 {