On Mon, Feb 22, 2021 at 08:00:00AM +0000, Dmitry V. Levin wrote: > Apparently, <linux/netfilter/nfnetlink_cthelper.h> and > <linux/netfilter/nfnetlink_acct.h> could not be included into the same > compilation unit because of a cut-and-paste typo in the former header. Applied, thanks.