diff --git a/[refs] b/[refs]
index b37e9bda5628..3b985831b83c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 952974ac61f686896bd4134dae106a886a5589f1
+refs/heads/master: e01292b1fd68ff2abe234d584b06e64344d2c1de
diff --git a/trunk/arch/Kconfig b/trunk/arch/Kconfig
index 04e3aa77da25..50877ef25844 100644
--- a/trunk/arch/Kconfig
+++ b/trunk/arch/Kconfig
@@ -123,6 +123,11 @@ config USE_GENERIC_SMP_HELPERS
 
 config HAVE_REGS_AND_STACK_ACCESS_API
 	bool
+	help
+	  This symbol should be selected by an architecure if it supports
+	  the API needed to access registers and stack entries from pt_regs,
+	  declared in asm/ptrace.h
+	  For example the kprobes-based event tracer needs this API.
 
 config HAVE_CLK
 	bool