linux-kernel - Re: [PATCH V2 2/2] m32r: Add missing big-endian I/O accessors

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Date:	Fri, 28 Nov 2014 00:15:08 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Fengguang Wu <fengguang.wu@...el.com>
Cc:	Kevin Cernekee <cernekee@...il.com>, grant.likely@...aro.org,
	kbuild-all@...org, gregkh@...uxfoundation.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Hirokazu Takata <takata@...ux-m32r.org>
Subject: Re: [PATCH V2 2/2] m32r: Add missing big-endian I/O accessors

On Thursday 27 November 2014 14:20:34 Fengguang Wu wrote:
> Add CC to Hirokazu.
> 
> > Side note for Fengguang: both with and without my patches, m32r modules
> > fail to link using the make.cross script on Ubuntu 14.10:
>  
> Yes, the memory_start/memory_end link errors are really old m32r
> specific errors. The config file that can trigger this error is
> m32r-m32104ut_defconfig.

These should be trivial to fix:

diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index 0392112a5d70..a5ecef7188ba 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -81,7 +81,10 @@ static struct resource code_resource = {
 };
 
 unsigned long memory_start;
+EXPORT_SYMBOL(memory_start);
+
 unsigned long memory_end;
+EXPORT_SYMBOL(memory_end);
 
 void __init setup_arch(char **);
 int get_cpuinfo(char *);

	Arnd
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