linux-kernel - [PATCH] x86_64: use BUILD_BUG

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Message-ID: <20061009015257.GB5346@martell.zuzino.mipt.ru>
Date:	Mon, 9 Oct 2006 05:52:57 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Andrew Morton <akpm@...l.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] x86_64: use BUILD_BUG_ON in FPU code

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 arch/x86_64/kernel/i387.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

--- a/arch/x86_64/kernel/i387.c
+++ b/arch/x86_64/kernel/i387.c
@@ -82,11 +82,8 @@ int save_i387(struct _fpstate __user *bu
 	struct task_struct *tsk = current;
 	int err = 0;
 
-	{ 
-		extern void bad_user_i387_struct(void); 
-		if (sizeof(struct user_i387_struct) != sizeof(tsk->thread.i387.fxsave))
-			bad_user_i387_struct();
-	} 
+	BUILD_BUG_ON(sizeof(struct user_i387_struct) !=
+			sizeof(tsk->thread.i387.fxsave));
 
 	if ((unsigned long)buf % 16) 
 		printk("save_i387: bad fpstate %p\n",buf); 

-
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