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authorIngo Molnar <[email protected]>2017-05-05 08:20:52 +0200
committerIngo Molnar <[email protected]>2017-05-05 08:21:03 +0200
commit415812f2d6b856d33ede9bf4a2b95575dbbb3d4e (patch)
tree4daf9ca52f89ea59453538b406f584d47c77aff3 /tools/include/linux/bug.h
parent42fc6c6cb1662ba2fa727dd01c9473c63be4e3b6 (diff)
parentd3b5d35290d729a2518af00feca867385a1b08fa (diff)
Merge branch 'linus' into x86/urgent, to pick up dependent commits
We are going to fix a bug introduced by a more recent commit, so refresh the tree. Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/include/linux/bug.h')
-rw-r--r--tools/include/linux/bug.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/include/linux/bug.h b/tools/include/linux/bug.h
new file mode 100644
index 000000000000..8e4a4f49135d
--- /dev/null
+++ b/tools/include/linux/bug.h
@@ -0,0 +1,10 @@
+#ifndef _TOOLS_PERF_LINUX_BUG_H
+#define _TOOLS_PERF_LINUX_BUG_H
+
+/* Force a compilation error if condition is true, but also produce a
+ result (of value 0 and type size_t), so the expression can be used
+ e.g. in a structure initializer (or where-ever else comma expressions
+ aren't permitted). */
+#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
+
+#endif /* _TOOLS_PERF_LINUX_BUG_H */