Re: [PATCH v2 bpf-next 03/14] bpf: Support bpf program calling kernel function

[Martin KaFai Lau]

On Thu, Mar 25, 2021 at 11:02:23PM +0100, Toke Høiland-Jørgensen wrote:
> Martin KaFai Lau <ka...@fb.com> writes:
> 
> > This patch adds support to BPF verifier to allow bpf program calling
> > kernel function directly.
> 
> Hi Martin
> 
> This is exciting stuff! :)
> 
> Just one quick question about this:
> 
> > [ For the future calling function-in-kernel-module support, an array
> >   of module btf_fds can be passed at the load time and insn->off
> >   can be used to index into this array. ]
> 
> Is adding the support for extending this to modules also on your radar,
> or is this more of an "in case someone needs it" comment? :)
It is in my list.  I don't mind someone beats me to it though
if he/she has an immediate use case. ;)