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Linux Kernel developer and maintainer
#standwithukraine ๐Ÿ‡ต๐Ÿ‡ฑ ๐Ÿ‡ช๐Ÿ‡บ ๐Ÿ‡บ๐Ÿ‡ฆ ๐Ÿ‡จ๐Ÿ‡ญ
IRC: krzk
Kernel work related account. Other accounts of mine: @krzk@mastodon.social

Krzysztof Kozlowski

Edited 3 days ago
I don't want to take all the credits, but FWIW, after pointing out publicly DTBs check compliance warnings for some platforms during my OSS Japan talk, two platforms/archs already received patches to fix several warnings (Loongarch and Aspeed).

It seems I will need to keep repeating this talk :)

https://sched.co/29Foi
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Krzysztof Kozlowski

Many types of nodes in the Linux kernel explained by Bartosz Golaszewski from Qualcomm at OSS Summit Japan.
#OSSumit
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Krzysztof Kozlowski

If you ever wondered where do we stand in Linux kernel with DTS validation (dtbs_check) of various platforms, which architectures are fully compliant and where we see nice progress, please join my session on 9th of December in Tokyo during Open Source Summit Japan 2025: Status of DTS Validation in Linux Kernel
https://sched.co/29Foi

I will also have a shortened version at the Linux Plumbers Conference, just a few days after.

#OSSummit #OSSJapan2025 #LinuxPlumbers
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This is not a peace plan. It is a proposal that weakens Ukraine and divides America from Europe, preparing the way for a larger war in the future. In the meantime, it benefits unnamed Russian and American investors, at the expense of everyone else.
https://www.theatlantic.com/ideas/2025/11/trumps-war-peace/685024/?gift=hVZeG3M9DnxL4CekrWGK3x5H8-x30wTOq6lDtv0xjW4&utm_source=copy-link&utm_medium=social&utm_campaign=share

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Krzysztof Kozlowski

$ git describe 
v6.18-rc3
$ git shortlog -s -n --no-merges

Oh! 5th place!

Donโ€™t stop me now

Iโ€™m having such a good time

Iโ€™m having a ball

Donโ€™t stop me now

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Krzysztof Kozlowski

SoC maintainership in the Linux kernel (long time ago called arm-soc) is growing into a group of maintainers. Four new people joined @arnd for SoC: Alexandre Belloni, Linus Walleij and me (yay!) as co-maintainers, and @fustini as a reviewer:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b2a578f3127ab9ef80114cef9b20a2b42a8ee77a

Arnd, previously the sole SoC maintainer, handled pull requests and patches from several other sub-maintainers for each SoC sub-architecture (e.g. Qualcomm, NXP) and other driver trees. The SoC tree was one of the busiest, if not the busiest, trees in kernel - visible on @lwn.net graph: https://lwn.net/Articles/981742/

With this change the load will hopefully spread.
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Thorsten Leemhuis (acct. 1/4)

Edited 1 month ago

TWIMC, the "Linus opposes Link: tags with links to the patch submission" is saga over, as Linus wrote:

""[โ€ฆ] I do think that at least if people use the different domain, I won't complain.

I'm still not convinced it's a great idea, but at least it means that the "this is the source of the commit" is clearly separate from the "this is actual background". [โ€ฆ]""

https://lore.kernel.org/all/CAHk-%3Dwj5MATvT-FR8qNpXuuBGiJdjY1kRfhtzuyBSpTKR%2B%3DVtw@mail.gmail.com/

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Not only did a permanent member of the UN security council attack a clearly marked UN humanitarian convoy with FPV Drones, they also proceed to proudly share the footage of their appalling crime on the internet.

https://news.un.org/en/story/2025/10/1166099

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Krzysztof Kozlowski

Edited 2 months ago

When a vendor wants to control upstreaming process and objects to community-led patches, Iโ€™ll just point to this brilliant response from @conor:

Itโ€™s only better if <vendor name> submits better quality patches (no evidence for that yet) or submits the patches more promptly than others (which clearly has not happened here), and offers review commentary etc at a higher standard and more frequently than a non-employee maintainer would be able to do (thereโ€™s no evidence for that so far either, given youโ€™re trying to stall this patchset). Your claim seems to have no merit as there is no proof that youโ€™d do a better job.

https://lore.kernel.org/all/20250925-jaundice-uneasy-ff8b3b595879@spud/

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Collaboration and communication are at the heart of Linux kernel development. In the second part of our series, we explore how to work effectively with the Linux kernel community.

Read more here ๐Ÿ‘‰ https://lnkd.in/eYgrqWZs

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NGI Zero open source funding

The European Commission has issued a survey on the Governance and Sustainability of Critical Open Source Software.

The survey hopes to identify "pathways for collective efforts" and make "actionable recommendations for public administrations".

It's a relatively short survey, takes max 15 minutes & provides lots of opportunities to rate FOSS as 'very important' ๐Ÿ˜›

https://ec.europa.eu/eusurvey/runner/FOSSEPS_Governance_and_Sustainability_Survey

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Krzysztof Kozlowski

With @andi we are organizing another Linux'n'Beer meeting in Zurich, CH:

When: Friday, 12th Sep, 18:00
Where: Bierwerk Zuri, https://maps.app.goo.gl/unN5AkKQUVj6DQ3H6

The place is known of good beer and they also have some beer-food (snacks, focaccia), but don't expect proper dinner served.

Please kindly let me know if you plan to come, so I will adjust the table booking if necessary.

Also just as reminder - we have a mailing list, so join if you do not want to miss such announcements
lch @ https://subspace.kernel.org/lists.linux.dev.html

And IRC channel #linuxnbeer-ch (on Libera)
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Krzysztof Kozlowski

Since few years I have been regularly speaking on each major Linux Open Source conference, so I could not miss Open Source Summit Europe in Amsterdam. I gave two talks and held speaker office hours for some more questions. I met many old friends and put face to the name known from online interactions in upstream community. It was to nice to hear that my talks are actually useful. :)

Event was very successful and intensive, so now well deserved rest... and looking forward to Japan in December, where I am planning to attend the main Linux conference (LPC 2025)!

P.S. "regularly speaking" except this year's Open Source Summit in USA, but that for obvious reasons - screw you Trump&Vance. I am not going to your little craphole.
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NOELREPORTS ๐Ÿ‡ช๐Ÿ‡บ ๐Ÿ‡บ๐Ÿ‡ฆ

Russia launched a massive overnight attack across Ukraine, striking eastern, central, and western regions. Explosions were reported in Mukachevo, Lviv, Lutsk, Dnipro, Kyiv, and Zaporizhzhia. Notably, Mukachevo was hit for the first time since the full-scale invasion began.

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Krzysztof Kozlowski

Edited 3 months ago
Except speaking on Open Source Summit Europe (OSSE) 2025, I will also participate in Speaker Office Hours on Wednesday 10:30 AM: https://sched.co/27flt

Happy to answer some questions regarding first Linux kernel contributions, Embedded Linux Kernel, ARM64 laptops (yep, I am daily using Lenovo T14s with Qualcomm X1E SoC), Devicetree bindings / DTS or why your last patchset was not merged. :)
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Edited 4 months ago

I think this shows how @linuxfoundation is not necessarily on our side.

https://social.lfx.dev/@linuxfoundation/114993371357953940

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Edited 4 months ago

Oh no!

@bagder couldn't convince Emerson to shut up about CRAs, so they are now mailing debian-devel@

And here I am, wanted to cut down on the ๐Ÿฟ this month.

https://lists.debian.org/debian-devel/2025/08/msg00108.html

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The "good" people at Emerson for some reason couldn't think for themselves when I responded to them on behalf of and instead continue and send the same questions to the project with the same "demands".

"This is a gentle reminder regarding our earlier request for your input on the cybersecurity risk assessment of the software component โ€œlibssh2โ€ version 1.11.0, as part of our compliance efforts with the EU Cyber Resilience Act (CRA)."

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Krzysztof Kozlowski

From my today's review list of patches for Devicetree bindings in Linux, two very poor quality submissions had weird pieces. Pieces which do not exist in usptream EVER. But I could imagine someone used AI tools to generate the bindings based on DTS. That would explain a lot... so it started. :/
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