linux-hardening - [RFC PATCH 03/17] tools: bug: Remove duplicate definition

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Date:   Wed, 20 Jan 2021 18:37:46 +0100
From:   Julien Thierry <jthierry@...hat.com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     catalin.marinas@....com, will@...nel.org, ardb@...nel.org,
        masahiroy@...nel.org, keescook@...omium.org,
        michal.lkml@...kovi.net, jpoimboe@...hat.com, peterz@...radead.org,
        mark.rutland@....com, broonie@...nel.org,
        linux-efi@...r.kernel.org, linux-hardening@...r.kernel.org,
        Julien Thierry <jthierry@...hat.com>
Subject: [RFC PATCH 03/17] tools: bug: Remove duplicate definition

Under tools, bug.h only defines BUILD_BUG_ON_ZERO() which is already
defined in build_bug.h. This prevents a file to include both headers at
the same time.

Have bug.h include build_bug.h instead.

Signed-off-by: Julien Thierry <jthierry@...hat.com>
---
 tools/include/linux/bug.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/tools/include/linux/bug.h b/tools/include/linux/bug.h
index 85f80258a15f..548be7cffa8e 100644
--- a/tools/include/linux/bug.h
+++ b/tools/include/linux/bug.h
@@ -2,10 +2,6 @@
 #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); }))
+#include <linux/build_bug.h>
 
 #endif	/* _TOOLS_PERF_LINUX_BUG_H */
-- 
2.25.4