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datapath: add rounddown() definition into compatibility code
[sliver-openvswitch.git]
/
datapath
/
linux
/
compat
/
include
/
linux
/
kernel.h
diff --git
a/datapath/linux/compat/include/linux/kernel.h
b/datapath/linux/compat/include/linux/kernel.h
index
fdd2005
..
6e248c5
100644
(file)
--- a/
datapath/linux/compat/include/linux/kernel.h
+++ b/
datapath/linux/compat/include/linux/kernel.h
@@
-87,4
+87,13
@@
#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
#endif
#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
#endif
+#ifndef rounddown
+#define rounddown(x, y) ( \
+{ \
+ typeof(x) __x = (x); \
+ __x - (__x % (y)); \
+} \
+)
+#endif
+
#endif /* linux/kernel.h */
#endif /* linux/kernel.h */