linux-kernel - Re: [PATCH] dma-debug: Allow archs to override check_for_illegal

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Message-Id: <20090814.130259.122634755.davem@davemloft.net>
Date:	Fri, 14 Aug 2009 13:02:59 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mingo@...e.hu
Cc:	joerg.roedel@....com, mingo@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dma-debug: Allow archs to override
 check_for_illegal_area

From: Ingo Molnar <mingo@...e.hu>
Date: Wed, 12 Aug 2009 10:54:40 +0200

> 
> * Joerg Roedel <joerg.roedel@....com> wrote:
> 
>> For some architectures (like sparc32) the default 
>> check_for_illegal_area function does not work reliable. This patch 
>> makes this function a weak symbol allowing architectures to 
>> override it if necessary.
>> 
>> Signed-off-by: Joerg Roedel <joerg.roedel@....com>
>> ---
>>  lib/dma-debug.c |    9 ++++++---
>>  1 files changed, 6 insertions(+), 3 deletions(-)
> 
> Dave, you indicated that sparc32 would address this problem 
> differently. Do we still need this patch (for .31 for example)?

Don't worry about this purely for sparc32's sake.

We can revisit this patch if I can't sort out the sparc32 issue
locally.

Thanks.
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