linux-kernel - Re: [PATCH] dma-debug: enhance dma_debug_device

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Date:	Tue, 12 Nov 2013 15:20:56 -0700
From:	Shuah Khan <shuah.kh@...sung.com>
To:	Alexander Duyck <alexander.h.duyck@...el.com>
Cc:	akpm@...ux-foundation.org, joro@...tes.org,
	linux-kernel@...r.kernel.org, shuahkhan@...il.com,
	Shuah Khan <shuah.kh@...sung.com>
Subject: Re: [PATCH] dma-debug: enhance dma_debug_device_change() to check for
 mapping errors

On 11/12/2013 03:12 PM, Alexander Duyck wrote:
> I think this might be overdoing the error checking by a bit.  I would
> much rather have the DMA leaked error be visible than have it buried
> under messages about the failure to check for DMA errors.  In my mind
> the DMA buffer leak is much more serious than the failure to check for
> mapping errors.
>

I agree DMA leak message is more important. Would you like to see just 
one message if mapping errors are found? Instead of printing the entire 
stacktrace like it does now, it could just do warn.

-- Shuah


-- 
Shuah Khan
Senior Linux Kernel Developer - Open Source Group
Samsung Research America(Silicon Valley)
shuah.kh@...sung.com | (970) 672-0658
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