// SPDX-License-Identifier: GPL-2.0 #include <vmlinux.h> #include "xdp_metadata.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, enum xdp_rss_hash_type *rss_type) __ksym; int called; SEC("freplace/rx") int freplace_rx(struct xdp_md *ctx) { enum xdp_rss_hash_type type = 0; u32 hash = 0; /* Call _any_ metadata function to make sure we don't crash. */ bpf_xdp_metadata_rx_hash(ctx, &hash, &type); called++; return XDP_PASS; } char _license[] SEC("license") = "GPL";