linux-kernel - [PATCH 1/1] x86/kernel/cpu/common.c: Fix section mismatch warnings

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Message-Id: <1305930797-11409-1-git-send-email-fenghua.yu@intel.com>
Date:	Fri, 20 May 2011 15:33:17 -0700
From:	"Fenghua Yu" <fenghua.yu@...el.com>
To:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"H Peter Anvin" <hpa@...or.com>, "Yinghai Lu" <yinghai@...nel.org>,
	"Asit K Mallick" <asit.k.mallick@...el.com>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"linux-kernel" <linux-kernel@...r.kernel.org>,
	"Fenghua Yu" <fenghua.yu@...el.com>
Subject: [PATCH 1/1] x86/kernel/cpu/common.c: Fix section mismatch warnings

From: Fenghua Yu <fenghua.yu@...el.com>

Fix kernel compilation warnings from commit:
de5397ad5b9ad22e2401c4dacdf1bb3b19c05679

WARNING: arch/x86/built-in.o(.cpuinit.text+0x1e07): Section mismatch in reference from the function generic_identify() to the variable .init.data:disable_smep
The function __cpuinit generic_identify() references
a variable __initdata disable_smep.
If disable_smep is only used by generic_identify then
annotate disable_smep with a matching annotation.

WARNING: arch/x86/built-in.o(.cpuinit.text+0x1b10): Section mismatch in reference from the function identify_cpu() to the function .init.text:setup_smep() The function __cpuinit identify_cpu() references a function __init setup_smep().
If setup_smep is only used by identify_cpu then annotate setup_smep with a matching annotation.

Change disable_smep from __initdata to __cpuinitdata.

Change setup_smep() from __init to __cpuinit.

Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>

---
 arch/x86/kernel/cpu/common.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index cbc70a2..c8b4162 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -254,7 +254,7 @@ static inline void squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
 }
 #endif
 
-static int disable_smep __initdata;
+static int disable_smep __cpuinitdata;
 static __init int setup_disable_smep(char *arg)
 {
 	disable_smep = 1;
@@ -262,7 +262,7 @@ static __init int setup_disable_smep(char *arg)
 }
 __setup("nosmep", setup_disable_smep);
 
-static __init void setup_smep(struct cpuinfo_x86 *c)
+static __cpuinit void setup_smep(struct cpuinfo_x86 *c)
 {
 	if (cpu_has(c, X86_FEATURE_SMEP)) {
 		if (unlikely(disable_smep)) {
-- 
1.7.2

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