linux-kernel - [PATCH] i386: fix section mismatches for init code with !HOTPLUG

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Date:	Tue, 18 Aug 2009 16:41:33 +0100
From:	"Jan Beulich" <JBeulich@...ell.com>
To:	<mingo@...e.hu>, <tglx@...utronix.de>, <hpa@...or.com>
Cc:	<robert.richter@....com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] i386: fix section mismatches for init code with
	 !HOTPLUG_CPU

Commit 0e83815be719d3391bf5ea24b7fe696c07dbd417 changed the section the
initial_code variable gets allocated in, in an attempt to address a
section conflict warning. This, however created a new section conflict
when building without HOTPLUG_CPU. The apparently only (reasonable) way
to address this is to always use __REFDATA.

Once at it, also fix a second section mismatch when not using
HOTPLUG_CPU.

Signed-off-by: Jan Beulich <jbeulich@...ell.com>
Cc: Robert Richter <robert.richter@....com>

---
 arch/x86/kernel/head_32.S |    8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

--- linux-2.6.31-rc6/arch/x86/kernel/head_32.S	2009-08-18 15:31:16.000000000 +0200
+++ 2.6.31-rc6-i386-head-sections/arch/x86/kernel/head_32.S	2009-08-18 10:38:31.000000000 +0200
@@ -261,9 +261,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
  * which will be freed later
  */
 
-#ifndef CONFIG_HOTPLUG_CPU
-.section .init.text,"ax",@progbits
-#endif
+__CPUINIT
 
 #ifdef CONFIG_SMP
 ENTRY(startup_32_smp)
@@ -602,11 +600,7 @@ ignore_int:
 #endif
 	iret
 
-#ifndef CONFIG_HOTPLUG_CPU
-	__CPUINITDATA
-#else
 	__REFDATA
-#endif
 .align 4
 ENTRY(initial_code)
 	.long i386_start_kernel



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