diff --git a/[refs] b/[refs]
index 4ed7a0778d9d..2324bec96064 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 39c9aede2b4a252bd296c0a86be832c3d3d0a273
+refs/heads/master: 9d36be76c55ad2c2bb29683b752b0d9ad2e4eeef
diff --git a/trunk/include/linux/capability.h b/trunk/include/linux/capability.h
index 5bc145bd759a..b5750d0b96e0 100644
--- a/trunk/include/linux/capability.h
+++ b/trunk/include/linux/capability.h
@@ -457,6 +457,13 @@ static inline int cap_isclear(const kernel_cap_t a)
 	return 1;
 }
 
+/*
+ * Check if "a" is a subset of "set".
+ * return 1 if ALL of the capabilities in "a" are also in "set"
+ *	cap_issubset(0101, 1111) will return 1
+ * return 0 if ANY of the capabilities in "a" are not in "set"
+ *	cap_issubset(1111, 0101) will return 0
+ */
 static inline int cap_issubset(const kernel_cap_t a, const kernel_cap_t set)
 {
 	kernel_cap_t dest;