On Mon, Dec 19, 2016 at 8:51 PM, Alexei Starovoitov <alexei.starovoi...@gmail.com> wrote: > On Mon, Dec 19, 2016 at 05:40:53PM -0800, Andy Lutomirski wrote: >> >> By the way, even if Alexei is right, the BPF_PROG_DETACH API doesn't >> even take a reference to a BPF program as an argument. What is it >> supposed to do if this mechanism ever gets extended? > > we just add another field to that anonymous union just like > we did for other commands and everything is backwards compatible. > It's the basics of bpf syscall that we've been relying on for some > time now and it worked just fine.
And what happens if you don't specify that member and two programs are attached? --Andy
