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0cef67aa65
Task 11 (kernel-doc) still mentions usage of make manpages, but this won't work if the API is documented via Sphinx. So, update it to use either htmldocs or pdfdocs, with are the documentation targets that work for all. While here, add ReST reference to the kernel documentation book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
111 lines
4.4 KiB
Plaintext
111 lines
4.4 KiB
Plaintext
Linux Kernel patch submission checklist
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Here are some basic things that developers should do if they want to see their
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kernel patch submissions accepted more quickly.
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These are all above and beyond the documentation that is provided in
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Documentation/SubmittingPatches and elsewhere regarding submitting Linux
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kernel patches.
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1: If you use a facility then #include the file that defines/declares
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that facility. Don't depend on other header files pulling in ones
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that you use.
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2: Builds cleanly with applicable or modified CONFIG options =y, =m, and
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=n. No gcc warnings/errors, no linker warnings/errors.
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2b: Passes allnoconfig, allmodconfig
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2c: Builds successfully when using O=builddir
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3: Builds on multiple CPU architectures by using local cross-compile tools
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or some other build farm.
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4: ppc64 is a good architecture for cross-compilation checking because it
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tends to use `unsigned long' for 64-bit quantities.
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5: Check your patch for general style as detailed in
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Documentation/CodingStyle. Check for trivial violations with the
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patch style checker prior to submission (scripts/checkpatch.pl).
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You should be able to justify all violations that remain in
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your patch.
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6: Any new or modified CONFIG options don't muck up the config menu.
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7: All new Kconfig options have help text.
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8: Has been carefully reviewed with respect to relevant Kconfig
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combinations. This is very hard to get right with testing -- brainpower
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pays off here.
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9: Check cleanly with sparse.
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10: Use 'make checkstack' and 'make namespacecheck' and fix any problems
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that they find. Note: checkstack does not point out problems explicitly,
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but any one function that uses more than 512 bytes on the stack is a
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candidate for change.
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11: Include :ref:`kernel-doc <kernel_doc>` to document global kernel APIs.
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(Not required for static functions, but OK there also.) Use
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``make htmldocs`` or ``make pdfdocs`` to check the
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:ref:`kernel-doc <kernel_doc>` and fix any issues.
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12: Has been tested with CONFIG_PREEMPT, CONFIG_DEBUG_PREEMPT,
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CONFIG_DEBUG_SLAB, CONFIG_DEBUG_PAGEALLOC, CONFIG_DEBUG_MUTEXES,
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CONFIG_DEBUG_SPINLOCK, CONFIG_DEBUG_ATOMIC_SLEEP, CONFIG_PROVE_RCU
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and CONFIG_DEBUG_OBJECTS_RCU_HEAD all simultaneously enabled.
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13: Has been build- and runtime tested with and without CONFIG_SMP and
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CONFIG_PREEMPT.
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14: If the patch affects IO/Disk, etc: has been tested with and without
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CONFIG_LBDAF.
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15: All codepaths have been exercised with all lockdep features enabled.
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16: All new /proc entries are documented under Documentation/
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17: All new kernel boot parameters are documented in
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Documentation/kernel-parameters.txt.
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18: All new module parameters are documented with MODULE_PARM_DESC()
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19: All new userspace interfaces are documented in Documentation/ABI/.
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See Documentation/ABI/README for more information.
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Patches that change userspace interfaces should be CCed to
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linux-api@vger.kernel.org.
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20: Check that it all passes `make headers_check'.
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21: Has been checked with injection of at least slab and page-allocation
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failures. See Documentation/fault-injection/.
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If the new code is substantial, addition of subsystem-specific fault
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injection might be appropriate.
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22: Newly-added code has been compiled with `gcc -W' (use "make
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EXTRA_CFLAGS=-W"). This will generate lots of noise, but is good for
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finding bugs like "warning: comparison between signed and unsigned".
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23: Tested after it has been merged into the -mm patchset to make sure
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that it still works with all of the other queued patches and various
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changes in the VM, VFS, and other subsystems.
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24: All memory barriers {e.g., barrier(), rmb(), wmb()} need a comment in the
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source code that explains the logic of what they are doing and why.
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25: If any ioctl's are added by the patch, then also update
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Documentation/ioctl/ioctl-number.txt.
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26: If your modified source code depends on or uses any of the kernel
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APIs or features that are related to the following kconfig symbols,
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then test multiple builds with the related kconfig symbols disabled
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and/or =m (if that option is available) [not all of these at the
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same time, just various/random combinations of them]:
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CONFIG_SMP, CONFIG_SYSFS, CONFIG_PROC_FS, CONFIG_INPUT, CONFIG_PCI,
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CONFIG_BLOCK, CONFIG_PM, CONFIG_MAGIC_SYSRQ,
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CONFIG_NET, CONFIG_INET=n (but latter with CONFIG_NET=y)
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