[External] : Re: [PATCH] net/tap: Modified TAP BPF program as per the new Kernel-version upgrade requirements.

[Stephen Hemminger]

On Fri, 5 Jan 2024 15:11:22 +0000
Madhuker Mythri <madhuker.mythri at oracle.com> wrote:

> By using this " bpf_skb_load_bytes_relative()" helper function we can directly retrieve the Network header data fields, so we no need to check for L2-header VLAN presence.
> 
> Thanks,
> Madhuker.

No problem, the vlan code was already broken. The kernel offloads vlan header to skb
but who ever wrote the original did not know that is what happens in modern kernels.