From af9893a3dc790ae0c4d3e68adde12bc3cb9c63fa Mon Sep 17 00:00:00 2001
From: KY Srinivasan <kys@microsoft.com>
Date: Wed, 9 Apr 2014 15:00:47 -0700
Subject: [PATCH] Drivers: net: hyperv: Address UDP checksum issues

ws2008r2 does not support UDP checksum offload. Thus, we cannnot turn on
UDP offload in the host. Also, on ws2012 and ws2012 r2, there appear to be
an issue with UDP checksum offload.
Fix this issue by computing the UDP checksum in the Hyper-V driver.

Based on Dave Miller's comments, in this version, I have COWed the skb
before modifying the UDP header (the checksum field).

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reading git-format-patch failed