Re: [Patch bpf-next v3 3/5] bpf: compute data_end dynamically with JIT code

On Sat, Feb 13, 2021 at 10:44 PM CET, Cong Wang wrote:

From: Cong Wang <redacted>

Currently, we compute ->data_end with a compile-time constant
offset of skb. But as Jakub pointed out, we can actually compute
it in eBPF JIT code at run-time, so that we can competely get
rid of ->data_end. This is similar to skb_shinfo(skb) computation
in bpf_convert_shinfo_access().

Suggested-by: Jakub Sitnicki <jakub@cloudflare.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Lorenz Bauer <redacted>
Signed-off-by: Cong Wang <redacted>
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Acked-by: Jakub Sitnicki <jakub@cloudflare.com>