netdev - Re: [PATCH] samples/bpf: make xdp_monitor use raw

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Date:   Wed, 16 Oct 2019 08:57:01 -0700
From:   Eric Sage <eric@...e.org>
To:     Jesper Dangaard Brouer <brouer@...hat.com>
Cc:     Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        xdp-newbies@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH] samples/bpf: make xdp_monitor use raw_tracepoints

On Wed, Oct 16, 2019 at 03:34:26PM +0200, Jesper Dangaard Brouer wrote:
> On Tue, 15 Oct 2019 21:21:04 -0700
> Eric Sage <eric@...e.org> wrote:
> 
> > I'm no longer able to build the samples with 'make M=samples/bpf'.
> > 
> > I get errors in task_fd_query_user.c like:
> > 
> > samples/bpf/task_fd_query_user.c:153:29: error: ‘PERF_EVENT_IOC_ENABLE’
> > undeclared.
> > 
> > Am I missing a dependancy?
> 
> Have you remembered to run:
> 
>  make headers_install
> 
> (As described in samples/bpf/README)

Yes, I've done that. I've tried:

  make mrproper
  cp /boot/config-5.2.18-200.fc30.x86_64 .config
  make olddefconfig
  make headers_install
  make M=samples/bpf

which ends with the errors I described.
> -- 
> Best regards,
>   Jesper Dangaard Brouer
>   MSc.CS, Principal Kernel Engineer at Red Hat
>   LinkedIn: http://www.linkedin.com/in/brouer