From b3e3893e1253692c3d2b8e8ebd5a26183ed30443 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Thu, 20 Oct 2016 13:55:22 -0400 Subject: net: use core MTU range checking in misc drivers firewire-net: - set min/max_mtu - remove fwnet_change_mtu nes: - set max_mtu - clean up nes_netdev_change_mtu xpnet: - set min/max_mtu - remove xpnet_dev_change_mtu hippi: - set min/max_mtu - remove hippi_change_mtu batman-adv: - set max_mtu - remove batadv_interface_change_mtu - initialization is a little async, not 100% certain that max_mtu is set in the optimal place, don't have hardware to test with rionet: - set min/max_mtu - remove rionet_change_mtu slip: - set min/max_mtu - streamline sl_change_mtu um/net_kern: - remove pointless ndo_change_mtu hsi/clients/ssi_protocol: - use core MTU range checking - remove now redundant ssip_pn_set_mtu ipoib: - set a default max MTU value - Note: ipoib's actual max MTU can vary, depending on if the device is in connected mode or not, so we'll just set the max_mtu value to the max possible, and let the ndo_change_mtu function continue to validate any new MTU change requests with checks for CM or not. Note that ipoib has no min_mtu set, and thus, the network core's mtu > 0 check is the only lower bounds here. mptlan: - use net core MTU range checking - remove now redundant mpt_lan_change_mtu fddi: - min_mtu = 21, max_mtu = 4470 - remove now redundant fddi_change_mtu (including export) fjes: - min_mtu = 8192, max_mtu = 65536 - The max_mtu value is actually one over IP_MAX_MTU here, but the idea is to get past the core net MTU range checks so fjes_change_mtu can validate a new MTU against what it supports (see fjes_support_mtu in fjes_hw.c) hsr: - min_mtu = 0 (calls ether_setup, max_mtu is 1500) f_phonet: - min_mtu = 6, max_mtu = 65541 u_ether: - min_mtu = 14, max_mtu = 15412 phonet/pep-gprs: - min_mtu = 576, max_mtu = 65530 - remove redundant gprs_set_mtu CC: netdev@vger.kernel.org CC: linux-rdma@vger.kernel.org CC: Stefan Richter CC: Faisal Latif CC: linux-rdma@vger.kernel.org CC: Cliff Whickman CC: Robin Holt CC: Jes Sorensen CC: Marek Lindner CC: Simon Wunderlich CC: Antonio Quartulli CC: Sathya Prakash CC: Chaitra P B CC: Suganath Prabu Subramani CC: MPT-FusionLinux.pdl@broadcom.com CC: Sebastian Reichel CC: Felipe Balbi CC: Arvid Brodin CC: Remi Denis-Courmont Signed-off-by: Jarod Wilson Signed-off-by: David S. Miller --- net/hsr/hsr_device.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/hsr/hsr_device.c') diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index 16737cd8dae8..fc65b145f6e7 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -398,6 +398,7 @@ void hsr_dev_setup(struct net_device *dev) random_ether_addr(dev->dev_addr); ether_setup(dev); + dev->min_mtu = 0; dev->header_ops = &hsr_header_ops; dev->netdev_ops = &hsr_device_ops; SET_NETDEV_DEVTYPE(dev, &hsr_type); -- cgit v1.2.3