1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index fdbbf72ca2eb..aaa998f65c7a 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -75,6 +75,12 @@ extern const char linux_proc_banner[];
  */
 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
 
+/**
+ * lower_32_bits - return bits 0-31 of a number
+ * @n: the number we're accessing
+ */
+#define lower_32_bits(n) ((u32)(n))
+
 #define KERN_EMERG      "<0>"   /* system is unusable                   */
 #define KERN_ALERT      "<1>"   /* action must be taken immediately     */
 #define KERN_CRIT       "<2>"   /* critical conditions                  */