openrisc: switch to use of generic fork and clone

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index c60a09d..5e5b306 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -1071,15 +1071,15 @@
 	l.jr	r29
 	 l.sw    PT_GPR28(r1),r28
 
-ENTRY(sys_clone)
-	l.movhi	r29,hi(_sys_clone)
-	l.ori	r29,r29,lo(_sys_clone)
+ENTRY(__sys_clone)
+	l.movhi	r29,hi(sys_clone)
+	l.ori	r29,r29,lo(sys_clone)
 	l.j	_fork_save_extra_regs_and_call
 	 l.addi	r7,r1,0
 
-ENTRY(sys_fork)
-	l.movhi	r29,hi(_sys_fork)
-	l.ori	r29,r29,lo(_sys_fork)
+ENTRY(__sys_fork)
+	l.movhi	r29,hi(sys_fork)
+	l.ori	r29,r29,lo(sys_fork)
 	l.j	_fork_save_extra_regs_and_call
 	 l.addi	r3,r1,0