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From: Quentin Monnet <quentin.monnet@netronome.com>
To: Sean Young <sean@mess.org>, Y Song <ys114321@gmail.com>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	Alexei Starovoitov <ast@kernel.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	netdev <netdev@vger.kernel.org>, Matthias Reichl <hias@horus.com>,
	Devin Heitmueller <dheitmueller@kernellabs.com>
Subject: Re: [PATCH v3 2/2] bpf: add selftest for rawir_event type program
Date: Fri, 18 May 2018 11:13:07 +0100	[thread overview]
Message-ID: <86ffb16c-9b4e-c826-ecd2-82266e7b8c2e@netronome.com> (raw)
In-Reply-To: <20180517210140.ck225yuckq6onheb@gofer.mess.org>

2018-05-17 22:01 UTC+0100 ~ Sean Young <sean@mess.org>
> On Thu, May 17, 2018 at 10:17:59AM -0700, Y Song wrote:
>> On Wed, May 16, 2018 at 2:04 PM, Sean Young <sean@mess.org> wrote:
>>> This is simple test over rc-loopback.
>>>
>>> Signed-off-by: Sean Young <sean@mess.org>
>>> ---
>>>  tools/bpf/bpftool/prog.c                      |   1 +
>>>  tools/include/uapi/linux/bpf.h                |  57 +++++++-
>>>  tools/lib/bpf/libbpf.c                        |   1 +
>>>  tools/testing/selftests/bpf/Makefile          |   8 +-
>>>  tools/testing/selftests/bpf/bpf_helpers.h     |   6 +
>>>  tools/testing/selftests/bpf/test_rawir.sh     |  37 +++++
>>>  .../selftests/bpf/test_rawir_event_kern.c     |  26 ++++
>>>  .../selftests/bpf/test_rawir_event_user.c     | 130 ++++++++++++++++++
>>>  8 files changed, 261 insertions(+), 5 deletions(-)
>>>  create mode 100755 tools/testing/selftests/bpf/test_rawir.sh
>>>  create mode 100644 tools/testing/selftests/bpf/test_rawir_event_kern.c
>>>  create mode 100644 tools/testing/selftests/bpf/test_rawir_event_user.c

[...]

>> Most people probably not really familiar with lircN device. It would be
>> good to provide more information about how to enable this, e.g.,
>>   CONFIG_RC_CORE=y
>>   CONFIG_BPF_RAWIR_EVENT=y
>>   CONFIG_RC_LOOPBACK=y
>>   ......
> 
> Good point. I'll add some words explaining what is and how to make it work.
> 
> Thanks
> Sean


By the way, shouldn't the two eBPF helpers bpf_rc_keydown() and
bpf_rc_repeat() be compiled out in patch 1 if e.g.
CONFIG_BPF_RAWIR_EVENT is not set? There are some other helpers that are
compiled only if relevant config options are set (bpf_get_xfrm_state()
for example).

(If you were to change that, please also update helper documentations to
indicate what configuration options are required to be able to use the
helpers.)

Best regards,
Quentin

  reply	other threads:[~2018-05-18 10:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-16 21:04 [PATCH v3 0/2] IR decoding using BPF Sean Young
2018-05-16 21:04 ` [PATCH v3 1/2] media: rc: introduce BPF_PROG_RAWIR_EVENT Sean Young
2018-05-17 12:10   ` Quentin Monnet
2018-05-17 13:44     ` Sean Young
2018-05-17 17:02   ` Y Song
2018-05-17 21:45     ` Sean Young
2018-05-18  5:31       ` Y Song
2018-05-16 21:04 ` [PATCH v3 2/2] bpf: add selftest for rawir_event type program Sean Young
2018-05-17 17:17   ` Y Song
2018-05-17 21:01     ` Sean Young
2018-05-18 10:13       ` Quentin Monnet [this message]
2018-05-18 13:33         ` Sean Young
2018-05-18 13:48           ` Quentin Monnet

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