Re: [PATCH bpf-next] bpf: better availability probing for seg6 helpers
On 07/10/2018 09:20 PM, Daniel Borkmann wrote: > On 07/10/2018 06:54 PM, Mathieu Xhonneux wrote: >> bpf_lwt_seg6_* helpers require CONFIG_IPV6_SEG6_BPF, and currently >> return -EOPNOTSUPP to indicate unavailability. This patch forces the >> BPF verifier to reject programs using these helpers when >> !CONFIG_IPV6_SEG6_BPF, allowing users to more easily probe if they are >> available or not. >> >> Signed-off-by: Mathieu Xhonneux > > Note, just fyi, this would need to go to bpf tree (and not bpf-next) as > otherwise there's a change in behavior. Applied, thanks Mathieu!
Re: [PATCH bpf-next] bpf: better availability probing for seg6 helpers
On 07/10/2018 06:54 PM, Mathieu Xhonneux wrote: > bpf_lwt_seg6_* helpers require CONFIG_IPV6_SEG6_BPF, and currently > return -EOPNOTSUPP to indicate unavailability. This patch forces the > BPF verifier to reject programs using these helpers when > !CONFIG_IPV6_SEG6_BPF, allowing users to more easily probe if they are > available or not. > > Signed-off-by: Mathieu Xhonneux Note, just fyi, this would need to go to bpf tree (and not bpf-next) as otherwise there's a change in behavior. Thanks, Daniel
