1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index bc6ed52a39b9..56aec84237ad 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -45,11 +45,16 @@
 
 #define REPEAT_BYTE(x)  ((~0ul / 0xff) * (x))
 
+/* @a is a power of 2 value */
 #define ALIGN(x, a)             __ALIGN_KERNEL((x), (a))
 #define __ALIGN_MASK(x, mask)   __ALIGN_KERNEL_MASK((x), (mask))
 #define PTR_ALIGN(p, a)         ((typeof(p))ALIGN((unsigned long)(p), (a)))
 #define IS_ALIGNED(x, a)                (((x) & ((typeof(x))(a) - 1)) == 0)
 
+/* generic data direction definitions */
+#define READ                    0
+#define WRITE                   1
+
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
 
 #define u64_to_user_ptr(x) (            \
@@ -506,6 +511,15 @@ extern enum system_states {
 #define TAINT_UNSIGNED_MODULE           13
 #define TAINT_SOFTLOCKUP                14
 #define TAINT_LIVEPATCH                 15
+#define TAINT_FLAGS_COUNT               16
+
+struct taint_flag {
+        char true;      /* character printed when tainted */
+        char false;     /* character printed when not tainted */
+        bool module;    /* also show as a per-module taint flag */
+};
+
+extern const struct taint_flag taint_flags[TAINT_FLAGS_COUNT];
 
 extern const char hex_asc[];
 #define hex_asc_lo(x)   hex_asc[((x) & 0x0f)]