vxlan: fix GRO with VXLAN-GPE

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[ Upstream commit b0b672c4d0 ]

In VXLAN-GPE, there may not be an Ethernet header following the VXLAN
header. But in GRO, the vxlan driver calls eth_gro_receive
unconditionally, which means the following header is incorrectly parsed
as Ethernet.

Introduce GPE specific GRO handling.

For better performance, do not check for GPE during GRO but rather
install a different set of functions at setup time.

Fixes: e1e5314de0 ("vxlan: implement GPE")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Jiri Benc 2023-07-21 16:30:47 +02:00 • committed by Greg Kroah-Hartman

parent c3a497decb

commit bc1e4f99e2

1 changed files with 69 additions and 15 deletions

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drivers/net/vxlan/vxlan_core.c

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