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-rw-r--r--sys/compat/linuxkpi/common/include/linux/minmax.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/minmax.h b/sys/compat/linuxkpi/common/include/linux/minmax.h
index 5040d7f9141e..161d0174554a 100644
--- a/sys/compat/linuxkpi/common/include/linux/minmax.h
+++ b/sys/compat/linuxkpi/common/include/linux/minmax.h
@@ -77,4 +77,14 @@
/* XXX would have to make sure both are unsigned. */
#define umin(x, y) MIN(x, y)
+/* This macro assumes that the array has elements inside. */
+#define __minmax_array(op, array, len) ({ \
+ typeof(array[0]) __val = array[0]; \
+ for (typeof(len) __i = 1; __i < len; __i++) \
+ __val = op(__val, array[__i]); \
+ __val; })
+
+#define min_array(array, len) __minmax_array(min, array, len)
+#define max_array(array, len) __minmax_array(max, array, len)
+
#endif /* _LINUXKPI_LINUX_MINMAX_H_ */