From: David S. Miller <davem@davemloft.net>
Date: Tue, 9 Feb 2016 11:43:59 +0000 (-0500)
Subject: Merge branch 'tpacket-gso-csum-offload'
X-Git-Tag: v4.6-rc1~91^2~307
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ef5c0e253d0bde6e11a7f94e58a68c3b354afc6b;p=platform%2Fkernel%2Flinux-exynos.git

Merge branch 'tpacket-gso-csum-offload'

Willem de Bruijn says:

====================
packet: tpacket gso and csum offload

Extend PACKET_VNET_HDR socket option support to packet sockets with
memory mapped rings.

Patches 2 and 4 add support to tpacket_rcv and tpacket_snd.

Patch 1 prepares for this by moving the relevant virtio_net_hdr
logic out of packet_snd and packet_rcv into helper functions.

GSO transmission requires all headers in the skb linear section.
Patch 3 moves parsing of tx_ring slot headers before skb allocation
to enable allocation with sufficient linear size.

Changes
  v1->v2:
    - fix bounds checks:
      - subtract sizeof(vnet_hdr) before comparing tp_len to size_max
      - compare tp_len to size_max also with GSO, just do not truncate to MTU
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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ef5c0e253d0bde6e11a7f94e58a68c3b354afc6b