Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-10-14

The following pull-request contains BPF updates for your *net-next* tree.

We've added 21 non-merge commits during the last 18 day(s) which contain
a total of 21 files changed, 1185 insertions(+), 127 deletions(-).

The main changes are:

1) Put xsk sockets on a struct diet and add various cleanups. Overall, this helps
to bump performance by 12% for some workloads, from Maciej Fijalkowski.

2) Extend BPF selftests to increase coverage of XDP features in combination
with BPF cpumap, from Alexis Lothoré (eBPF Foundation).

3) Extend netkit with an option to delegate skb->{mark,priority} scrubbing to
its BPF program, from Daniel Borkmann.

4) Make the bpf_get_netns_cookie() helper available also to tc(x) BPF programs,
from Mahe Tardy.

5) Extend BPF selftests covering a BPF program setting socket options per MPTCP
subflow, from Geliang Tang and Nicolas Rybowski.

bpf-next-for-netdev

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (21 commits)
xsk: Use xsk_buff_pool directly for cq functions
xsk: Wrap duplicated code to function
xsk: Carry a copy of xdp_zc_max_segs within xsk_buff_pool
xsk: Get rid of xdp_buff_xsk::orig_addr
xsk: s/free_list_node/list_node/
xsk: Get rid of xdp_buff_xsk::xskb_list_node
selftests/bpf: check program redirect in xdp_cpumap_attach
selftests/bpf: make xdp_cpumap_attach keep redirect prog attached
selftests/bpf: fix bpf_map_redirect call for cpu map test
selftests/bpf: add tcx netns cookie tests
bpf: add get_netns_cookie helper to tc programs
selftests/bpf: add missing header include for htons
selftests/bpf: Extend netkit tests to validate skb meta data
tools: Sync if_link.h uapi tooling header
netkit: Add add netkit scrub support to rt_link.yaml
netkit: Simplify netkit mode over to use NLA_POLICY_MAX
netkit: Add option for scrubbing skb meta data
bpf: Remove unused macro
selftests/bpf: Add mptcp subflow subtest
selftests/bpf: Add getsockopt to inspect mptcp subflow
...
====================

Link: https://patch.msgid.link/20241014211110.16562-1-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>