Until this change, it would fail to build with:
In file included from /tmp/guix-build-perf-5.2.15.drv-0/linux-5.2.15/tools/include/uapi/linux/ethtool.h:19:0,
from xsk.c:18:
/gnu/store/…-linux-libre-headers-4.19.56/include/linux/if_ether.h:165:1: error: packed attribute is unnecessary for 'ethhdr' [-Werror=packed]
* gnu/packages/linux.scm (perf)[arguments]: In 'configure' phase, remove
"-Werror" from 'tools/lib/bpf/Makefile'.
1f78a99964