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SubjectRe: [PATCH v6 net-next 4/6] bpf: enable bpf syscall on x64 and i386

* Daniel Borkmann <dborkman@redhat.com> wrote:

> On 08/26/2014 09:46 AM, Ingo Molnar wrote:
> >* Alexei Starovoitov <ast@plumgrid.com> wrote:
> >>On Mon, Aug 25, 2014 at 8:52 PM, Stephen Hemminger
> >><stephen@networkplumber.org> wrote:
> >>>Per discussion at Kernel Summit. Every new syscall requires
> >>>a manual page and test programs. We have had too many new syscalls
> >>>that are DOA.
> >>
> >>There is verifier testsuite that is testing eBPF verifier from userspace
> >>via bpf syscall. Also there are multiple examples and libbpf.
> >>I think test coverage for bpf syscall is quite substantial already.
> >
> >This is in tools/bpf/, right?
>
> No, it contains a BPF JIT disasm, bpf assembler and a debugger,
> but the last two are for the 'classic' BPF interface only.
> There's a test suite for BPF/eBPF in general under
> lib/test_bpf.c, but so far it tests only the current code w/o
> eBPF verifier.
>
> That said, I think Alexei is referring to the examples et al
> from the bigger previous proposed patch set.

I mean, if all the testing already exists, it should be part of
an initial submission and such.

Thanks,

Ingo


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