Merge branch 'devices-always-netif_f_lltx'

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Peilin Ye says:

====================
devices always NETIF_F_LLTX

v1: https://lore.kernel.org/netdev/cover.1650580763.git.peilin.ye@bytedance.com/

change since v1:
  - deleted "depends on patch..." in [1/2]'s commit message

This patchset depends on these fixes [1], which has been merged into
net-next.  Since o_seqno is now atomic_t, we can always turn on
NETIF_F_LLTX for [IP6]GRE[TAP] devices, since we no longer need the TX
lock (&txq->_xmit_lock).

We could probably do the same thing to [IP6]ERSPAN devices as well, but
I'm not familiar with them yet.  For example, ERSPAN devices are
initialized as |= GRE_FEATURES in erspan_tunnel_init(), but I don't see
IP6ERSPAN devices being initialized as |= GRE6_FEATURES.  Where should we
initialize IP6ERSPAN devices' ->features?  Please suggest if I'm missing
something, thanks!

[1] https://lore.kernel.org/netdev/cover.1650575919.git.peilin.ye@bytedance.com/
====================

Link: https://lore.kernel.org/r/cover.1651207788.git.peilin.ye@bytedance.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

Paolo Abeni 2022-05-02 10:30:36 +02:00

parent 6e28f56c0d b11ebf2ca2

commit 0f0c0452bb

2 changed files with 35 additions and 49 deletions

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50

net/ipv4/ip_gre.c

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34

net/ipv6/ip6_gre.c

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