diff --git a/[refs] b/[refs]
index c47bba3f1114..fc92aed752f0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 039fc91e064b81c2820ff16c304be5aba35fd126
+refs/heads/master: 4e193bd4dfdc983d12969b51439b4a1fbaf2daad
diff --git a/trunk/kernel/perf_counter.c b/trunk/kernel/perf_counter.c
index d6cc22271ef4..0018c5e81249 100644
--- a/trunk/kernel/perf_counter.c
+++ b/trunk/kernel/perf_counter.c
@@ -24,6 +24,8 @@
 #include <linux/vmstat.h>
 #include <linux/rculist.h>
 
+#include <asm/irq_regs.h>
+
 /*
  * Each CPU has a list of per CPU counters:
  */