radix tree test suite: Add __must_be_array() support

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>

diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-tree/linux/kernel.h
index 99979aeaa37960de3ab2709fa662a225f6b2ac72..e44603a181daf2dde60b1ddcb60638fa64619d90 100644 (file)
--- a/tools/testing/radix-tree/linux/kernel.h
+++ b/tools/testing/radix-tree/linux/kernel.h
@@ -31,4 +31,6 @@
 # define fallthrough                    do {} while (0)  /* fallthrough */
 #endif /* __has_attribute */
 
+#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
+
 #endif /* _KERNEL_H */