linux-kernel - [RFC PATCH v4 03/37] tools: bug: Remove duplicate definition

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Message-ID: <20220429094355.122389-4-chenzhongjin@huawei.com>
Date:   Fri, 29 Apr 2022 17:43:21 +0800
From:   Chen Zhongjin <chenzhongjin@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-arch@...r.kernel.org>
CC:     <jthierry@...hat.com>, <catalin.marinas@....com>,
        <will@...nel.org>, <masahiroy@...nel.org>, <jpoimboe@...hat.com>,
        <peterz@...radead.org>, <ycote@...hat.com>,
        <herbert@...dor.apana.org.au>, <mark.rutland@....com>,
        <davem@...emloft.net>, <ardb@...nel.org>, <maz@...nel.org>,
        <tglx@...utronix.de>, <luc.vanoostenryck@...il.com>,
        <chenzhongjin@...wei.com>
Subject: [RFC PATCH v4 03/37] tools: bug: Remove duplicate definition

From: Julien Thierry <jthierry@...hat.com>

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 */
-- 
2.17.1