Subject: [PATCHv2-net-3.8 0/3] fix kernel crash with macvtap on top of LRO

From: "Michael S. Tsirkin" <[email-masked]>
Date: Thu, 7 Feb 2013 15:12:56 +0200

At the moment, macvtap crashes are observed if macvtap is attached
to an interface with LRO enabled.
The crash in question is BUG() in macvtap_skb_to_vnet_hdr.
This happens because several drivers set gso_size but not gso_type
in incoming skbs.
This didn't use to be the case: with intel cards on 3.2 and older
kernels, with qlogic - on 3.4 and older kernels, so it's a regression if
not a recent one.
The following patches fix this for qlogic, broadcom and intel drivers.

I tested that the patch fixes the crash for ixgbe but
don't have qlogic/broadcom hardware to test.
I also only tested TCPv4.

Please review, and consider for 3.8.

Changes from v1:
	- added missing htons as suggested by Eric
	- backported the relevant bits from
	  cbf1de72324a8105ddcc3d9ce9acbc613faea17e for bnx2x

Michael S. Tsirkin (3):
  ixgbe: fix gso type
  qlcnic: set gso_type
  bnx2x: set gso_type

 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 12 +++++-------
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c   |  8 ++++++--
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c  |  7 ++++++-
 3 files changed, 17 insertions(+), 10 deletions(-)

-- 
MST

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