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Linux Kernel developer and maintainer
๐Ÿ‡ต๐Ÿ‡ฑ ๐Ÿ‡ช๐Ÿ‡บ ๐Ÿ‡ฐ๐Ÿ‡ท ๐Ÿ‡ฎ๐Ÿ‡ฑ ๐Ÿ‡บ๐Ÿ‡ฆ ๐Ÿ‡จ๐Ÿ‡ญ
IRC: krzk
Kernel work related account. Other accounts of mine: @krzk@mastodon.social

Krzysztof Kozlowski

I announced it before on social.kernel.org, mailing lists and finally in the Linux kernel (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c25223cba5aa9a536392933782d4a7df71d9093b). So one more time, same announcement:
None of the Samsung and Samsung Foundry platforms can bring any new `dtbs_check W=1` warning.

Contributor can easily test it, so sending code which introduces such warnings is considered close to sending code which does not compile. Fast step to get your maintainer grumpy.
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Krzysztof Kozlowski

Nice follow-up of Monday's Plumber's talk - Powering up โ€œdiscoverable bus-attachedโ€ devices on DT-based platforms - BoF session with the same title:
https://lpc.events/event/17/contributions/1654/
It seems @abelvesa and Bartosz have now a acceptable solution to implement.
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@linuxplumbersconf Youtube Live Stream URLs are now available on the Schedule Overview page (https://lpc.events/event/17/timetable/#all).

Find the track you want and click the paperclip on the upper right corner to bring up the Live Stream Link

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Krzysztof Kozlowski

Edited 1 year ago
Some weeks ago people got scammed on Booking.com with "confirmation of payment method" or whatever they called it. Booking.com systems allowed scammers to send to customers messages about need to pay again. Second time. Booking.com denies.

So here it is: Booking.com still is not secure and scammers are active. Message I just got:
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Edited 1 year ago

A talk for fresh Kernel Maintainers and anyone looking to optimize their workflow @linuxplumbersconf with @krzk
1. Get improvements to email workflow: b4, useful simple hooks for verifying commits (because checkpatch is not enough).
2. Get yourself in linux-next and get tested by community Continuous Integration/Testing.
3. Add yourself to kernel.org keyring, sign your tags and pushes (for transparency log).
4. Dump the mailing lists: use lei and lore
https://lpc.events/event/17/contributions/1498/

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Lads and gals,

Linux'n'Beer CH is back for version 2. We're meeting in Zurich on Wednesday, the 8th of November. If you're in Switzerland, come by, or pass this on to someone who might be interested.

We're set to meet at 6:30 PM at the Burgermeister Kaserne[*].

@krzk and I will be there!

Cheers!

[*] https://maps.app.goo.gl/VsZ4wRjzvewpowK19
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Linaro successfully enables upstream Linux support for the Qualcomm Snapdragon 8 Gen 3 Mobile Platform - the latest addition to the Snapdragon family.
Learn more about:
- Effortless upstream Linux integration
- Powerful performance optimization
- Running AOSP with Mainline
- Continued collaboration
Read the Blog Post Here https://www.linaro.org/blog/upstream-linux-support-now-available-for-the-the-qualcomm-snapdragon-8-gen-3-mobile-platform/
"

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Krzysztof Kozlowski

If Samsung Foundry designed a SoC for customer, re-using most of components/IP blocks from Samsung SoCs, is it still a Samsung SoC or not? Which one is the main, common part?
1. Core SoC architecture, like buses, pinctrl, clocks, timers, serial, and many IP blocks, which constitute 95% of Devicetree bindings and drivers. IOW, all these common Samsung SoCs parts.
2. The one, big piece made by Samsung's customer: TPU, NPU or whatever.

https://lore.kernel.org/all/48e1c0bd-9518-4927-b490-f3206256bbd4@lpnu.ua/
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Krzysztof Kozlowski

Finally, after moving to new home, I have time to reorganize my board farm. I was thinking about big rack cabinet, but changed my mind. I want art. Art on the wall.
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I put together a mailing list etiquette page, in case it's useful for newbie posters.

https://subspace.kernel.org/etiquette.html
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Krzysztof Kozlowski

What's happening in Poland around parliamentary election is beautiful! People waiting in long queues to vote, sometimes up to 1 AM. Just to vote! 73% turnout - record for Polish parliamentary elections after fall of communism. It is such a great pleasure to see the nation woken up to kick out corrupted, populist, close-minded, anti-democratic party out of their seats!

https://www.theguardian.com/world/2023/oct/15/poland-exit-polls-pis-party-wins-most-votes-but-opposition-coalition-possible
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Edited 1 year ago

I'm proud to call Bradley Kuhn a friend and am celebrating him joining the growing community of out-and-proud FOSS leaders.

But it is a tragedy when someone is forced out.

I've watched as Eben Moglen and SFLC have abused the legal system and attacked SFC, wasting the scarce resources of one of FOSS's most important charitable nonprofits, and am devastated to learn about the personal abuse Bradley has endured.

FOSS friends: please take the time to read this. https://ebb.org/bkuhn/blog/2023/10/11/moglen-sflc.html

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Krzysztof Kozlowski

Edited 7 months ago
Keep an eye on this talk for Linux Plumbers Conference 2023 - @abelvesa will be talking about how devices attached to discoverable buses on DT-based platforms need some special kind of powering up solution.
https://lpc.events/event/17/contributions/1507/
I am looking forward to it.
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Jonathan Corbet

So they made a movie about my dad ...

https://fullcirclefilm.co/

...and about a crazy kid named Trevor Kennison and how both recovered their lives after a devastating injury. I've seen it, it's definitely worth a watch. The site lists a lot of upcoming screenings (all just in North America, alas).
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Krzysztof Kozlowski

What a pleasant surprise - I am going to Plumbers! My talk about useful tool-set for fresh Linux kernel maintainers was accepted for this years Linux Plumbers Conference:
https://lpc.events/event/17/contributions/1498/
The cool part is that I will speak very early - on the second slot of the first day.
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Krzysztof Kozlowski

Edited 1 year ago
For a year I have been keeping a branch on top of linux-next with all the cleanups and fixes for Qualcomm SoCs Devicetree sources. Goal is to pass DT schema validation someday (just like Samsung does). I update and rebase the branch frequently. I also add new patches to fix existing warnings. Unfortunately, the branch actually never gets smaller: I always have around 120-200 patches on top of linux-next. Always. Now, after rebasing on next-20230913 it is ~150 patches. Still 150 patches just cannot get applied...

If anyone tells you "Linux kernel development goes too fast", he is wrong. It's too slow. For one year I was able to create fixes much faster than people were applying then.

Branch is here if anyone wants to avoid duplicating work/effort:
https://github.com/krzk/linux/tree/pending/dt-bindings-qcom-new-and-fixes-for-warnings-linux-next
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Krzysztof Kozlowski

Syzkaller now creates nice monthly reports reminding what could be fixed. Anyone bored enough or having enough of spare time to fix these NFC issues (having repro!)?
https://lore.kernel.org/all/0000000000008253550604ac4d36@google.com/
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Krzysztof Kozlowski

Trimmed diffstat of v6.6-rc1 pull request ARM SoC changes from @arnd - the most active platforms for v6.6:

18.9% arch/arm64/boot/dts/qcom/
0.6% arch/arm/boot/dts/qcom/
1.0% drivers/soc/qcom/
...
9.6% arch/arm64/boot/dts/freescale/
3.6% arch/arm/boot/dts/nxp/imx/
0.7% arch/arm/boot/dts/nxp/ls/
0.9% arch/arm/boot/dts/nxp/mxs/
...
8.1% arch/arm/boot/dts/aspeed/
...
8.2% arch/arm64/boot/dts/ti/
0.5% arch/arm/boot/dts/ti/
...
6.6% arch/arm64/boot/dts/nvidia/
...
6.3% arch/arm64/boot/dts/rockchip/

Way to go Qualcomm SoC community!
Source: https://lore.kernel.org/all/4f60d13e-f060-491a-88c7-6f25323a48f8@app.fastmail.com/
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Krzysztof Kozlowski

Edited 1 year ago
Corporate rules going mad: After replying to Nuvoton patches, I received now automated Out-of-office reply with "confidentiality" clause: "The privileged confidential information contained in this email is intended for use only". This is Out-of-office auto-reply, not confidential message. Get your silly systems together people...
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Krzysztof Kozlowski

@linuxplumbersconf Hey Linux Plumbers! What is the point of the your mastodon account if you do not interact and do not respond here to any questions?
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