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add OVS MTU fix

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Fabian Grünbichler 2017-03-27 12:41:31 +02:00
parent 78fc209b1e
commit e513dc9e44
2 changed files with 42 additions and 0 deletions
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1
Makefile
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@ -260,6 +260,7 @@ ${KERNEL_SRC}/README ${KERNEL_CFG_ORG}: ${KERNEL_SRC_SUBMODULE} | submodules
cd ${KERNEL_SRC}; patch -p1 < ../kvm-dynamic-halt-polling-disable-default.patch cd ${KERNEL_SRC}; patch -p1 < ../kvm-dynamic-halt-polling-disable-default.patch
cd ${KERNEL_SRC}; patch -p1 < ../cgroup-cpuset-add-cpuset.remap_cpus.patch cd ${KERNEL_SRC}; patch -p1 < ../cgroup-cpuset-add-cpuset.remap_cpus.patch
cd ${KERNEL_SRC}; patch -p1 < ../CVE-2017-2596-kvm-page-reference-leakage-in-handle_vmon.patch cd ${KERNEL_SRC}; patch -p1 < ../CVE-2017-2596-kvm-page-reference-leakage-in-handle_vmon.patch
cd ${KERNEL_SRC}; patch -p1 < ../openvswitch-Set-internal-device-max-mtu-to-ETH_MAX_M.patch
sed -i ${KERNEL_SRC}/Makefile -e 's/^EXTRAVERSION.*$$/EXTRAVERSION=${EXTRAVERSION}/' sed -i ${KERNEL_SRC}/Makefile -e 's/^EXTRAVERSION.*$$/EXTRAVERSION=${EXTRAVERSION}/'
touch $@ touch $@

41
openvswitch-Set-internal-device-max-mtu-to-ETH_MAX_M.patch Normal file
View file

@ -0,0 +1,41 @@
From 425df17ce3a26d98f76e2b6b0af2acf4aeb0b026 Mon Sep 17 00:00:00 2001
From: Jarno Rajahalme <jarno@ovn.org>
Date: Tue, 14 Feb 2017 21:16:28 -0800
Subject: [PATCH] openvswitch: Set internal device max mtu to ETH_MAX_MTU.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Commit 91572088e3fd ("net: use core MTU range checking in core net
infra") changed the openvswitch internal device to use the core net
infra for controlling the MTU range, but failed to actually set the
max_mtu as described in the commit message, which now defaults to
ETH_DATA_LEN.
This patch fixes this by setting max_mtu to ETH_MAX_MTU after
ether_setup() call.
Fixes: 91572088e3fd ("net: use core MTU range checking in core net infra")
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
net/openvswitch/vport-internal_dev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 09141a1..89193a6 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -149,6 +149,8 @@ static void do_setup(struct net_device *netdev)
{
ether_setup(netdev);
+ netdev->max_mtu = ETH_MAX_MTU;
+
netdev->netdev_ops = &internal_dev_netdev_ops;
netdev->priv_flags &= ~IFF_TX_SKB_SHARING;
--
2.1.4