x86: signal: make NR_restart_syscall

make NR_restart_syscall macro for cosmetic unification of handle_signal().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 76d05d7..bd9b650 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -572,6 +572,7 @@
 	return 0;
 }
 
+#define NR_restart_syscall	__NR_restart_syscall
 /*
  * Note that 'init' is a special process: it doesn't get signals it doesn't
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
@@ -635,7 +636,7 @@
 			break;
 
 		case -ERESTART_RESTARTBLOCK:
-			regs->ax = __NR_restart_syscall;
+			regs->ax = NR_restart_syscall;
 			regs->ip -= 2;
 			break;
 		}