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