netdev - Re: [PATCH 0/2] DMA API usage fixes in gianfar

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Date:	Fri, 5 Dec 2014 16:48:39 +0200
From:	Claudiu Manoil <claudiu.manoil@...escale.com>
To:	Arseny Solokha <asolokha@...kras.ru>
CC:	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<haokexin@...il.com>
Subject: Re: [PATCH 0/2] DMA API usage fixes in gianfar

On 12/5/2014 12:37 PM, Arseny Solokha wrote:
> Hello.
>
> This patch set fixes DMA API usage issues in gianfar ethernet driver
> reported by the kernel w/ DMA API debug enabled.
>
> There were even reports that the kernel sometimes oopsed in the past
> because of kernel paging request handling failures, though it was likely
> observed on some ancient versions. And while I personally doesn't have
> any strong evidence of this, there's no reason to let these possible
> failures live any longer.
>
> Arseny Solokha (2):
>    gianfar: handle map error in gfar_new_rxbdp()
>    gianfar: handle map error in gfar_start_xmit()
>
>   drivers/net/ethernet/freescale/gianfar.c | 49 ++++++++++++++++++++++++++------
>   1 file changed, 41 insertions(+), 8 deletions(-)
>

Thanks but please note that Kevin Hao already provided a fix for this issue:
http://permalink.gmane.org/gmane.linux.network/336274

His patch was only deferred for testing (and bandwidth) reasons.
I will try to resend his patch to the netdev list today if possible,
I apologize for the delay.
Also note that there are some issues with your patches.
As said before, I will resubmit Kevin Hao's patch.

Thanks,
Claudiu

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