I split the change and resubmitted it as v3 http://dpdk.org/dev/patchwork/patch/10456/
It includes one of the two fixes. The other one is optional for now and could be submitted separately later.

Thanks,
Liming

-----Original Message-----
From: Bruce Richardson [mailto:bruce.richardson@intel.com] 
Sent: Tuesday, February 09, 2016 10:59 AM
To: Liming Sun
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 2/2] driver/net/mpipe: fix the crash/hung issue when testpmd quits

On Fri, Jan 08, 2016 at 09:39:08AM -0500, Liming Sun wrote:

1. Fixed the compiling issue of the ethtool example on tilegx
   platform.
2. Fixed the hung/crash issue when quitting testpmd under high
   traffic rate. The buffer error bit needs to be checked before
   processing the idesc and releasing the buffer. Code logic is
   also simplified.

Again, with two issues being solved, this looks like two patches. Can you also describe exactly the causes of the individual issues in each patch and how the patch fixes them. 
Please also include a fixes line for each patch as described here:

http://dpdk.org/doc/guides/contributing/patches.html#commit-messages-body

Thanks,
/Bruce