Re: [PATCH mptcp-net] selftests: mptcp: drop nanoseconds width specifier

[Matthieu Baerts <matttbe@kernel.org>]

On 15/05/2026 05:59, Matthieu Baerts wrote:
> Hello,
> 
> On 15/05/2026 04:11, Matthieu Baerts (NGI0) wrote:
>> Using the format specifier +%s%3N with GNU date is honoured, and only
>> prints 3 digits of the nanoseconds portion of the seconds since epoch,
>> which corresponds to the milliseconds.
>>
>> The uutils implementation of date currently does not honour this, and
>> always prints all 9 digits. This is a known issue [1], but can be worked
>> around by adapting this test to use nanoseconds instead of microseconds,
>> and then divide it by 1e6.
>>
>> This fix is similar to what has been done on systemd side [2].
> 
> I suggest applying this patch, and sending to netdev-net, not to block
> those using uutils, e.g. on Ubuntu 26.04.
> 
> I will apply a small change, see below.

Now in our tree:

New patches for t/upstream-net and t/upstream:
- ddfbd0a8f455: selftests: mptcp: drop nanoseconds width specifier
- Results: abcff95a440d..c6403a142d47 (export-net)
- Results: 564a2979a856..17d8ed7a3a1c (export)

Tests are now in progress:

- export-net:
https://github.com/multipath-tcp/mptcp_net-next/commit/91d16c37e15ffff4ea145b5b7c897f2f4e5cfd3d/checks
- export:
https://github.com/multipath-tcp/mptcp_net-next/commit/bae8b1e40c2d814e5d571dfa0885a59722911bb6/checks

Cheers,
Matt
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