From: David S. Miller Date: Fri, 3 Aug 2018 17:03:57 +0000 (-0700) Subject: Merge branch 'l2tp-mtu' X-Git-Tag: for-linus-20180825~89^2~147 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=723a00436adc2ab474a2501c18a8e72ea1fc73f1;p=linux-block.git Merge branch 'l2tp-mtu' Guillaume Nault says: ==================== l2tp: sanitise MTU handling on sessions Most of the code handling sessions' MTU has no effect. The ->mtu field in struct l2tp_session might be used at session creation time, but neither PPP nor Ethernet pseudo-wires take updates into account. L2TP sessions don't have a concept of MTU, which is the reason why ->mtu is mostly ignored. MTU should remain a network device thing. Therefore this patch set does not try to propagate/update ->mtu to/from the device. That would complicate the code unnecessarily. Instead this field and the associated ioctl commands and netlink attributes are removed. Patch #1 defines l2tp_tunnel_dst_mtu() in order to simplify the following patches. Then patches #2 and #3 remove MTU handling from PPP and Ethernet pseudo-wires respectively. ==================== Signed-off-by: David S. Miller --- 723a00436adc2ab474a2501c18a8e72ea1fc73f1