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| author |   Jesper Dangaard Brouer <brouer@redhat.com> | 2020-05-14 12:51:25 +0200 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-05-14 21:21:56 -0700 |
| commit | c8741e2bfe872425ea6f10bb6f7dc1d67bc60c3a (patch) | |
| tree | f03ab9412cde9c6a8076e9f1b83e6fe1aae17058 /kernel/bpf/reuseport_array.c | |
| parent | mlx5: Rx queue setup time determine frame_sz for XDP (diff) | |
| download | linux-dev-c8741e2bfe872425ea6f10bb6f7dc1d67bc60c3a.tar.xz linux-dev-c8741e2bfe872425ea6f10bb6f7dc1d67bc60c3a.zip | |
xdp: Allow bpf_xdp_adjust_tail() to grow packet size
Finally, after all drivers have a frame size, allow BPF-helper
bpf_xdp_adjust_tail() to grow or extend packet size at frame tail.
Remember that helper/macro xdp_data_hard_end have reserved some
tailroom. Thus, this helper makes sure that the BPF-prog don't have
access to this tailroom area.
V2: Remove one chicken check and use WARN_ONCE for other
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/158945348530.97035.12577148209134239291.stgit@firesoul
Diffstat (limited to 'kernel/bpf/reuseport_array.c')
0 files changed, 0 insertions, 0 deletions