linux-kernel - [PATCH -next] x86/mm: Fix section mismatch derived from native_pagetable

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Date:	Sun, 17 Apr 2011 16:35:08 +0200
From:	Sedat Dilek <sedat.dilek@...glemail.com>
To:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	x86@...nel.org, linux-kernel@...r.kernel.org, yinghai@...nel.org,
	stefano.stabellini@...citrix.com, castet.matthieu@...e.fr
Cc:	Sedat Dilek <sedat.dilek@...il.com>, "PaX" <pageexec@...email.hu>
Subject: [PATCH -next] x86/mm: Fix section mismatch derived from native_pagetable_reserve()

With CONFIG_DEBUG_SECTION_MISMATCH=y I see these warnings in next-20110415:

  LD      vmlinux.o
  MODPOST vmlinux.o
WARNING: vmlinux.o(.text+0x1ba48): Section mismatch in reference from the function native_pagetable_reserve() to the function .init.text:memblock_x86_reserve_range()
The function native_pagetable_reserve() references
the function __init memblock_x86_reserve_range().
This is often because native_pagetable_reserve lacks a __init
annotation or the annotation of memblock_x86_reserve_range is wrong.

This patch fixes the issue.
Thanks to pipacs from PaX project for help on IRC.

Cc: "PaX" <pageexec@...email.hu>
Signed-off-by: Sedat Dilek <sedat.dilek@...il.com>
---
 arch/x86/mm/init.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index ed0650b..ae1ff24 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -81,7 +81,7 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
 		end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT);
 }

-void native_pagetable_reserve(u64 start, u64 end)
+void __init native_pagetable_reserve(u64 start, u64 end)
 {
 	memblock_x86_reserve_range(start, end, "PGTABLE");
 }
-- 
1.7.4.4

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