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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-23 13:28:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-23 13:28:57 -0700
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Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted
Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ...
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+.. _development_conclusion:
+
+For more information
+====================
+
+There are numerous sources of information on Linux kernel development and
+related topics. First among those will always be the Documentation
+directory found in the kernel source distribution. Start with the
+top-level :ref:`process/howto.rst <process_howto>`; also read
+:ref:`process/submitting-patches.rst <submittingpatches>`. Many internal
+kernel APIs are documented using the kerneldoc mechanism; "make htmldocs"
+or "make pdfdocs" can be used to generate those documents in HTML or PDF
+format (though the version of TeX shipped by some distributions runs into
+internal limits and fails to process the documents properly).
+
+Various web sites discuss kernel development at all levels of detail. Your
+author would like to humbly suggest https://lwn.net/ as a source;
+information on many specific kernel topics can be found via the LWN kernel
+index at:
+
+ https://lwn.net/Kernel/Index/
+
+Beyond that, a valuable resource for kernel developers is:
+
+ https://kernelnewbies.org/
+
+And, of course, one should not forget https://kernel.org/, the definitive
+location for kernel release information.
+
+There are a number of books on kernel development:
+
+ Linux Device Drivers, 3rd Edition (Jonathan Corbet, Alessandro
+ Rubini, and Greg Kroah-Hartman). Online at
+ https://lwn.net/Kernel/LDD3/.
+
+ Linux Kernel Development (Robert Love).
+
+ Understanding the Linux Kernel (Daniel Bovet and Marco Cesati).
+
+All of these books suffer from a common fault, though: they tend to be
+somewhat obsolete by the time they hit the shelves, and they have been on
+the shelves for a while now. Still, there is quite a bit of good
+information to be found there.
+
+Documentation for git can be found at:
+
+ https://www.kernel.org/pub/software/scm/git/docs/
+
+ https://www.kernel.org/pub/software/scm/git/docs/user-manual.html
+
+
+Conclusion
+==========
+
+Congratulations to anybody who has made it through this long-winded
+document. Hopefully it has provided a helpful understanding of how the
+Linux kernel is developed and how you can participate in that process.
+
+In the end, it's the participation that matters. Any open source software
+project is no more than the sum of what its contributors put into it. The
+Linux kernel has progressed as quickly and as well as it has because it has
+been helped by an impressively large group of developers, all of whom are
+working to make it better. The kernel is a premier example of what can be
+done when thousands of people work together toward a common goal.
+
+The kernel can always benefit from a larger developer base, though. There
+is always more work to do. But, just as importantly, most other
+participants in the Linux ecosystem can benefit through contributing to the
+kernel. Getting code into the mainline is the key to higher code quality,
+lower maintenance and distribution costs, a higher level of influence over
+the direction of kernel development, and more. It is a situation where
+everybody involved wins. Fire up your editor and come join us; you will be
+more than welcome.