linux-kernel - [Patch] mips: do not redefine BUILD

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Date:	Fri,  3 Feb 2012 15:51:40 +0800
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	WANG Cong <xiyou.wangcong@...il.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	David Daney <david.daney@...ium.com>,
	Hillf Danton <dhillf@...il.com>, linux-mips@...ux-mips.org
Subject: [Patch] mips: do not redefine BUILD_BUG()

On mips, we got

include/linux/kernel.h:717:1: error: "BUILD_BUG" redefined
arch/mips/include/asm/page.h:43:1: error: this is the location of the previous definition
make[3]: *** [arch/mips/sgi-ip27/ip27-console.o] Error 1
make[2]: *** [arch/mips/sgi-ip27] Error 2
make[1]: *** [arch/mips] Error 2
make: *** [sub-make] Error 2

use generic BUILD_BUG() instead of re-defining one.

Signed-off-by: WANG Cong <xiyou.wangcong@...il.com>

---
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index d417909..e14121a 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -39,9 +39,7 @@
 #define HPAGE_MASK	(~(HPAGE_SIZE - 1))
 #define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
 #else /* !CONFIG_HUGETLB_PAGE */
-# ifndef BUILD_BUG
-#  define BUILD_BUG() do { extern void __build_bug(void); __build_bug(); } while (0)
-# endif
+#include <linux/kernel.h>
 #define HPAGE_SHIFT	({BUILD_BUG(); 0; })
 #define HPAGE_SIZE	({BUILD_BUG(); 0; })
 #define HPAGE_MASK	({BUILD_BUG(); 0; })
--
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