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Date: Thu, 20 Nov 2025 19:20:45 -0800
From: Jakub Kicinski <kuba@kernel.org>
To: David Wei <dw@davidwei.uk>
Cc: netdev@vger.kernel.org, Andrew Lunn <andrew+netdev@lunn.ch>, "David S.
 Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Paolo
 Abeni <pabeni@redhat.com>, Daniel Borkmann <daniel@iogearbox.net>
Subject: Re: [PATCH net-next v1 5/7] selftests/net: add bpf skb forwarding
 program
Message-ID: <20251120192045.1eb4a9b0@kernel.org>
In-Reply-To: <20251120033016.3809474-6-dw@davidwei.uk>
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On Wed, 19 Nov 2025 19:30:14 -0800 David Wei wrote:
> This is needed for netkit container datapath selftests. Add two things:
> 
>   1. nk_forward.bpf.c, a bpf program that forwards skbs matching some
>      IPv6 prefix received on eth0 ifindex to a specified netkit ifindex.
>   2. nk_forward.c, a C loader program that accepts eth0/netkit ifindex
>      and IPv6 prefix.
> 
> Selftests will load and unload this bpf program via the loader.

Is the skel stuff necessary? For XDP we populate the map with bpftool.