Jesse Gross 5699b3431e tunnels: Don't apply GRO to multiple layers of encapsulation. ... commit fac8e0f579 upstream. When drivers express support for TSO of encapsulated packets, they only mean that they can do it for one layer of encapsulation. Supporting additional levels would mean updating, at a minimum, more IP length fields and they are unaware of this. No encapsulation device expresses support for handling offloaded encapsulated packets, so we won't generate these types of frames in the transmit path. However, GRO doesn't have a check for multiple levels of encapsulation and will attempt to build them. UDP tunnel GRO actually does prevent this situation but it only handles multiple UDP tunnels stacked on top of each other. This generalizes that solution to prevent any kind of tunnel stacking that would cause problems. Fixes: bf5a755f ("net-gre-gro: Add GRE support to the GRO stack") Signed-off-by: Jesse Gross <jesse@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Juerg Haefliger <juerg.haefliger@hpe.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-10-31 04:13:59 -06:00
..
acpi	Merge branch 'acpi-pci'	2015-11-07 01:30:10 +01:00
asm-generic	asm-generic: make copy_from_user() zero the destination properly	2016-09-24 10:07:45 +02:00
clocksource
crypto	crypto: ghash-generic - move common definitions to a new header file	2016-10-22 12:26:56 +02:00
drm	drm/prime: Pass the right module owner through to dma_buf_export()	2016-10-31 04:13:57 -06:00
dt-bindings	ARM: DT updates for v4.4	2015-11-10 15:06:26 -08:00
keys
kvm	KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active	2015-11-24 18:07:40 +01:00
linux	tunnels: Don't apply GRO to multiple layers of encapsulation.	2016-10-31 04:13:59 -06:00
math-emu
media	videobuf2-core: Check user space planes array in dqbuf	2016-05-04 14:48:50 -07:00
memory
misc
net	af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock'	2016-09-30 10:18:36 +02:00
pcmcia
ras
rdma	IB/security: Restrict use of the write() interface	2016-05-04 14:48:48 -07:00
rxrpc
scsi	scsi: Add intermediate STARGET_REMOVE state to scsi_target_state	2016-06-01 12:15:54 -07:00
soc	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
sound	ALSA: rawmidi: Make snd_rawmidi_transmit() race-free	2016-02-17 12:30:58 -08:00
target	target: Make EXTENDED_COPY 0xe4 failure return COPY TARGET DEVICE NOT REACHABLE	2016-10-28 03:01:36 -04:00
trace	SUNRPC: Don't allocate a full sockaddr_storage for tracing	2016-08-20 18:09:26 +02:00
uapi	cxlflash: Fix to avoid virtual LUN failover failure	2016-09-15 08:27:49 +02:00
video	drm/imx: Match imx-ipuv3-crtc components using device node in platform data	2016-06-07 18:14:37 -07:00
xen	xen: Fix page <-> pfn conversion on 32 bit systems	2016-05-11 11:21:14 +02:00
Kbuild