diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h
index 41b8a1e1144a..cca69093f03d 100644
--- a/arch/powerpc/include/asm/asm-prototypes.h
+++ b/arch/powerpc/include/asm/asm-prototypes.h
@@ -57,12 +57,7 @@ int enter_vmx_ops(void);
 void *exit_vmx_ops(void *dest);
 
 /* signals, syscalls and interrupts */
-long sys_swapcontext(struct ucontext __user *old_ctx,
-		    struct ucontext __user *new_ctx,
-		    long ctx_size);
 #ifdef CONFIG_PPC32
-long sys_debug_setcontext(struct ucontext __user *ctx,
-			  int ndbg, struct sig_dbg_op __user *dbg);
 int
 ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp,
 	   struct __kernel_old_timeval __user *tvp);
@@ -81,7 +76,6 @@ unsigned long interrupt_exit_kernel_restart(struct pt_regs *regs);
 
 long ppc_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
 		      u32 len_high, u32 len_low);
-long sys_switch_endian(void);
 
 /* prom_init (OpenFirmware) */
 unsigned long __init prom_init(unsigned long r3, unsigned long r4,