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Message-ID: <b8c14751-37a9-4a3d-b9af-a5c697d34781@kernel.org>
Date: Wed, 10 Apr 2024 21:31:13 +0200 (GMT+02:00)
From: Matthieu Baerts <matttbe@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>,
	Geliang Tang <geliang@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
	Geliang Tang <tanggeliang@...inos.cn>
Subject: Re: [PATCH net-next v2 0/2] mptcp: add last time fields in
 mptcp_info

Hi Jakub,

Thank you for your email!

10 Apr 2024 20:34:54 Jakub Kicinski <kuba@...nel.org>:

> On Wed, 10 Apr 2024 11:48:23 +0200 Matthieu Baerts (NGI0) wrote:
>> These patches from Geliang add support for the "last time" field in
>> MPTCP Info, and verify that the counters look valid.
>>
>> Patch 1 adds these counters: last_data_sent, last_data_recv and
>> last_ack_recv. They are available in the MPTCP Info, so exposed via
>> getsockopt(MPTCP_INFO) and the Netlink Diag interface.
>>
>> Patch 2 adds a test in diag.sh MPTCP selftest, to check that the
>> counters have moved by at least 250ms, after having waited twice that
>> time.
>
> Hi Mat, is this causing skips in selftests by any chance?
>
> # 07 ....chk last_data_sent                            [SKIP] Feature probably not supported
> # 08 ....chk last_data_recv                            [SKIP] Feature probably not supported
> # 09 ....chk last_ack_recv                             [SKIP] Feature probably not supported

Yes it does, I should have added a note about that, sorry: that's because
SS needs to be patched as well to display the new counters.

https://patchwork.kernel.org/project/mptcp/patch/fd9e850f1e00691204f1dfebc63c01c6a4318c10.1711705327.git.geliang@kernel.org/

This patch will be sent when the kernel one will be accepted.

Is it an issue? The modification of the selftests can be applied later
if you prefer.

Earlier today, I was looking at changing NIPA not to mark the whole
selftest as "SKIP" but I saw it was not a bug: a check is there to
mark everything as skipped if one subtest is marked as skipped
from what I understood. So I guess we don't want to change that :)

> I'll "hide it" from patchwork for now..
> --
> pw-bot: defer

Thank you! Do you prefer if I resend only patch 1/2 for now?

Cheers,
Matt

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