Re: [PATCH bpf-next V3 0/6] bpf: New approach for BPF MTU handling

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On Thu, 08 Oct 2020 16:08:57 +0200 Jesper Dangaard Brouer wrote:
> V3: Drop enforcement of MTU in net-core, leave it to drivers

Sorry for being late to the discussion.

I absolutely disagree. We had cases in the past where HW would lock up
if it was sent a frame with bad geometry.

We will not be sprinkling validation checks across the drivers because
some reconfiguration path may occasionally yield a bad packet, or it's
hard to do something right with BPF.



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