This is something caught in UNH FreeBSD env.
For some reason [1], the pcap/bpf.h header started to define _BPF_H_.
It happens that the bpf_impl.h internal DPDK header uses this define as
an internal guard.
This triggers a build failure in bpf_convert.c which can't find
RTE_BPF_LOG macro.
Fix the include guard to use the filename and remove _.
1: https://github.com/the-tcpdump-group/libpcap/pull/1074
Fixes: 94972f35a02e ("bpf: add BPF loading and execution framework")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
63f39a430a