Subject: Re: [PATCH bpf-next] bpf, x86: remove unnecessary handling of BPF_SUB atomic op

From: John Fastabend <[email-masked]>
Date: Thu, 27 Jan 2022 18:40:39 -0800

Daniel Borkmann wrote:
> On 1/27/22 11:48 AM, Brendan Jackman wrote:
> > Yep - BPF_SUB is also excluded in Documentation/networking/filter.rst,
> > plus the interpreter and verifier don't support it.
> > 
> > Thanks,
> > 
> > Acked-by: Brendan Jackman <[email-masked]>
> 
> I was wondering about verifier specifically as well. Added a note to the
> commit log that verifier rejects BPF_SUB while applying, thanks!
> 

Thanks for the follow up Hou/Brendan LGTM as well. After its been
merged, but ACK from me as well.