Re: [PATCH bpf-next v8 3/4] bpf: support specifying ingress via xdp_md context in BPF_PROG_TEST_RUN

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On 7/7/21 3:16 PM, Zvi Effron wrote:
Support specifying the ingress_ifindex and rx_queue_index of xdp_md
contexts for BPF_PROG_TEST_RUN.

The intended use case is to allow testing XDP programs that make decisions
based on the ingress interface or RX queue.

If ingress_ifindex is specified, look up the device by the provided index
in the current namespace and use its xdp_rxq for the xdp_buff. If the
rx_queue_index is out of range, or is non-zero when the ingress_ifindex is
0, return -EINVAL.

Co-developed-by: Cody Haas <chaas@xxxxxxxxxxxxx>
Signed-off-by: Cody Haas <chaas@xxxxxxxxxxxxx>
Co-developed-by: Lisa Watanabe <lwatanabe@xxxxxxxxxxxxx>
Signed-off-by: Lisa Watanabe <lwatanabe@xxxxxxxxxxxxx>
Signed-off-by: Zvi Effron <zeffron@xxxxxxxxxxxxx>

I double checked reference counting for `device` and it seems correct
to me, so
Acked-by: Yonghong Song <yhs@xxxxxx>



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