"nft list hooks" not working (empty output)

Dear all,

according to the man page for nft, "nft list hooks" should list all functions registered at each hook, along with their priorities, and including the internal nftables functions. I am understanding this in the sense that "nft list hooks" should output something at least when there actually is a ruleset.

But on my test system, that output is always empty. Please consider the following excerpt from a terminal session:

root@charon /etc/network # nft list ruleset
table ip t_IP {
         chain input-filter {
                 type filter hook input priority filter; policy accept;
                 ip protocol icmp drop
         }
}
root@charon /etc/network # nft list hooks
root@charon /etc/network #

Of course, that ruleset does not make any sense, but it serves its purpose for testing. "nft list hooks" should output something in that situation, shouldn't it?

This happens on Debian trixie, kernel 6.12.90, nftables 1.1.3.

I also have tried "nft list hooks inet" with the same result.

Furthermore, I have created another ruleset with an ingress filter and have tried "nft list hooks netdev", which also gave no output.

Any advice or explanation? Where is my misunderstanding or mistake?

Thank you very much in advance,

Binarus