From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Thu, 14 Jan 2021 01:30:02 +0000 (-0500)
Subject: radix tree test suite: Add __must_be_array() support
X-Git-Tag: howlett/maple_spf/20210104~66
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=fd8fce3546034f1def5b00c159e929441cfbcdef;p=users%2Fjedix%2Flinux-maple.git

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 99979aeaa379..e44603a181da 100644
--- 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 */