linux-kernel - [PATCH 22/27] x86: fix section mismatch in head_64.S:initial

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Message-Id: <1203250984-11285-22-git-send-email-sam@ravnborg.org>
Date:	Sun, 17 Feb 2008 13:22:59 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH 22/27] x86: fix section mismatch in head_64.S:initial_code

Fix following warning:
WARNING: vmlinux.o(.cpuinit.data+0x0): Section mismatch in reference from the variable initial_code to the function .init.text:x86_64_start_kernel()

initial_code are initially used to hold a function pointer
from __init and later from __cpuinit. This confuses modpost
and changing initial_code to REFDATA silence the warning.
(But now we do not discard the variable anymore).

Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: H. Peter Anvin <hpa@...or.com>
---
 arch/x86/kernel/head_64.S |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 09b38d5..220daaa 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -250,7 +250,7 @@ ENTRY(secondary_startup_64)
 	lretq
 
 	/* SMP bootup changes these two */
-	__CPUINITDATA
+	__REFDATA
 	.align	8
 	ENTRY(initial_code)
 	.quad	x86_64_start_kernel
-- 
1.5.4.rc3.14.g44397

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