[SRU Request] tc/ebpf: unable to use BPF_FUNC_skb_change_head

[Thadeu Lima de Souza Cascardo]

On Mon, Sep 21, 2020 at 05:49:52PM +0200, Nicolas Dichtel wrote:
> Hi Ubuntu kernel team,
> 
> please, could you consider to backport the linux upstream commit 6f3f65d80dac
> ("net: bpf: Allow TC programs to call BPF_FUNC_skb_change_head"):
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6f3f65d80dac
> 
> It is included in v5.8 (the bug exists since v4.10).
> 
> Here is the launchpad entry:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896504
> 
> 
> Thank you,
> Nicolas
> 
> -- 

Hi, Nicolas.

What do you want to backport it to? What packages on what series? And could you
expand on the test case, that is, provide code for that? That would be really
helpful!

Thanks.
Cascardo.