From bd25c57feccb6b6dc19f8c5c4ae60de599a6a736 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon, 17 Jun 2013 14:10:42 +0200
Subject: [PATCH] backprots: add rounddown

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 backport/backport-include/linux/kernel.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/backport/backport-include/linux/kernel.h b/backport/backport-include/linux/kernel.h
index 79ad8896ab74..42aa91ddc79e 100644
--- a/backport/backport-include/linux/kernel.h
+++ b/backport/backport-include/linux/kernel.h
@@ -271,6 +271,15 @@ int hex_to_bin(char ch);
 	__val > __max ? __max: __val; })
 #endif
 
+#ifndef rounddown
+#define rounddown(x, y) (				\
+{							\
+	typeof(x) __x = (x);				\
+	__x - (__x % (y));				\
+}							\
+)
+#endif /* rounddown */
+
 #endif /* __BACKPORT_KERNEL_H */
 
 /*
-- 
2.30.2