diff --git a/[refs] b/[refs]
index 02e1ffd59ffb..4e6cd4efb5ab 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1022623842cb72ee4d0dbf02f6937f38c92c3f41
+refs/heads/master: cb57a2b4cff7edf2a4e32c0163200e9434807e0a
diff --git a/trunk/arch/x86/kernel/ptrace.c b/trunk/arch/x86/kernel/ptrace.c
index 2484e331a64d..5e0596b0632e 100644
--- a/trunk/arch/x86/kernel/ptrace.c
+++ b/trunk/arch/x86/kernel/ptrace.c
@@ -22,6 +22,7 @@
 #include <linux/perf_event.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/rcupdate.h>
+#include <linux/module.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -193,6 +194,7 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)
 
 	return (unsigned long)regs;
 }
+EXPORT_SYMBOL_GPL(kernel_stack_pointer);
 
 static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {