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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /Documentation/process/contribution-maturity-model.rst | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab:
- v4l2-core: added ISP statistics support and per-block validation
- v4l2-core: Allow unknown HDR10 white point and luminance
- New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor
- New codec: Milos: VPU v2.0 codec support
- isp driver: gained support for Dreamchip RPPX1 ISP framework
- vsp1 driver: gained support for RZ/T2H and RZ/N2H
- Novalake driver: gained CVS support for new NVL hardware
- dvb-core: fix feed leak on failed DMX_ADD_PID
- several driver fixes, cleanups and minor improvements
* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: ipu-bridge: check all DMI entries when overriding sensor rotation
media: v4l2-async: avoid deleting unlinked ASC entry on link error
media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
media: intel/ipu6: fix async notifier cleanup leak on parse error
media: staging/ipu7: fix async notifier UAF on probe error path
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
media: rcar-isp: Fix VSPX reference leaks
media: rcar-isp: Release ISPCORE resources
media: i2c: imx415: Release runtime PM reference on VBLANK error
media: i2c: imx415: Return test pattern write errors
media: renesas: vsp1: Declare index variables in for loop statement
media: renesas: vsp1: Make reset control optional to support platforms without a reset line
media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
media: nxp: imx8-isi: Add additional 32-bit RGB format support
media: nxp: imx8-isi: Add 16-bit raw Bayer format support
media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
media: nxp: imx8-isi: Correct color map between V4L2 and ISI
...
Diffstat (limited to 'Documentation/process/contribution-maturity-model.rst')
| -rw-r--r-- | Documentation/process/contribution-maturity-model.rst | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/Documentation/process/contribution-maturity-model.rst b/Documentation/process/contribution-maturity-model.rst new file mode 100644 index 000000000..b87ab34de --- /dev/null +++ b/Documentation/process/contribution-maturity-model.rst @@ -0,0 +1,109 @@ +.. SPDX-License-Identifier: GPL-2.0 + +======================================== +Linux Kernel Contribution Maturity Model +======================================== + + +Background +========== + +As a part of the 2021 Linux Kernel Maintainers’ Summit, there was a +`discussion <https://lwn.net/Articles/870581/>`_ about the challenges in +recruiting kernel maintainers as well as maintainer succession. Some of +the conclusions from that discussion included that companies which are a +part of the Linux Kernel community need to allow engineers to be +maintainers as part of their job, so they can grow into becoming +respected leaders and eventually, kernel maintainers. To support a +strong talent pipeline, developers should be allowed and encouraged to +take on upstream contributions such as reviewing other people’s patches, +refactoring kernel infrastructure, and writing documentation. + +To that end, the Linux Foundation Technical Advisory Board (TAB) +proposes this Linux Kernel Contribution Maturity Model. These common +expectations for upstream community engagement aim to increase the +influence of individual developers, increase the collaboration of +organizations, and improve the overall health of the Linux Kernel +ecosystem. + +The TAB urges organizations to continuously evaluate their Open Source +maturity model and commit to improvements to align with this model. To +be effective, this evaluation should incorporate feedback from across +the organization, including management and developers at all seniority +levels. In the spirit of Open Source, we encourage organizations to +publish their evaluations and plans to improve their engagement with the +upstream community. + +Level 0 +======= + +* Software Engineers are not allowed to contribute patches to the Linux + kernel. + + +Level 1 +======= + +* Software Engineers are allowed to contribute patches to the Linux + kernel, either as part of their job responsibilities or on their own + time. + +Level 2 +======= + +* Software Engineers are expected to contribute to the Linux Kernel as + part of their job responsibilities. +* Software Engineers will be supported to attend Linux-related + conferences as a part of their job. +* A Software Engineer’s upstream code contributions will be considered + in promotion and performance reviews. + +Level 3 +======= + +* Software Engineers are expected to review patches (including patches + authored by engineers from other companies) as part of their job + responsibilities +* Contributing presentations or papers to Linux-related or academic + conferences (such those organized by the Linux Foundation, Usenix, + ACM, etc.), are considered part of an engineer’s work. +* A Software Engineer’s community contributions will be considered in + promotion and performance reviews. +* Organizations will regularly report metrics of their open source + contributions and track these metrics over time. These metrics may be + published only internally within the organization, or at the + organization’s discretion, some or all may be published externally. + Metrics that are strongly suggested include: + + * The number of upstream kernel contributions by team or organization + (e.g., all people reporting up to a manager, director, or VP). + * The percentage of kernel developers who have made upstream + contributions relative to the total kernel developers in the + organization. + * The time interval between kernels used in the organization’s servers + and/or products, and the publication date of the upstream kernel + upon which the internal kernel is based. + * The number of out-of-tree commits present in internal kernels. + +Level 4 +======= + +* Software Engineers are encouraged to spend a portion of their work + time focused on Upstream Work, which is defined as reviewing patches, + serving on program committees, improving core project infrastructure + such as writing or maintaining tests, upstream tech debt reduction, + writing documentation, etc. +* Software Engineers are supported in helping to organize Linux-related + conferences. +* Organizations will consider community member feedback in official + performance reviews. + +Level 5 +======= + +* Upstream kernel development is considered a formal job position, with + at least a third of the engineer’s time spent doing Upstream Work. +* Organizations will actively seek out community member feedback as a + factor in official performance reviews. +* Organizations will regularly report internally on the ratio of + Upstream Work to work focused on directly pursuing business goals. |
