Commit Graph

255 Commits

Author SHA1 Message Date
Nick Desaulniers 905705a8fd docs: programming-languages: refresh blurb on clang support
Building the kernel with Clang doesn't rely on third party patches, and
has not for a few years now.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200929211936.580805-1-ndesaulniers@google.com
[jc: Took out duplicated "docs" pointed out by Randy]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-05 09:44:11 -06:00
Mauro Carvalho Chehab 5ff4aa70bf docs: submitting-patches: use :doc: for references
There are two broken references at submitting-patches.rst:

	Documentation/process/submitting-patches.rst:240: WARNING: undefined label: security-bugs (if the link has no caption the label must precede a section header)
	Documentation/process/submitting-patches.rst:336: WARNING: undefined label: documentation/process/email-clients.rst (if the link has no caption the label must precede a section header)

Those are due to some recent renames and file moves.

It turns that maintaining :ref: is currently harder than using
:doc:, as we now have a script to help checking such references.

So, replace :ref: to :doc: there, making them to point to the
current file name.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/3ba405f579cf35ef2b39dd210d8ad46adc79f0ad.1599660067.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-10 10:50:01 -06:00
Gustavo A. R. Silva 17dca05023 docs: deprecated.rst: Update zero-length/one-element arrays section
Update information in the zero-length and one-element arrays section
and illustrate how to make use of the new flex_array_size() helper,
together with struct_size() and a flexible-array member.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20200901010949.GA21398@embeddedor
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-09 11:37:49 -06:00
Randy Dunlap 9334e34fe1 Documentation: submit-checklist: add clean builds for new Documentation
Add to Documentation/process/submit-checklist.rst that patch
submitters should run "make htmldocs" and verify that any
Documentation/ changes (patches) are clean (no new warnings/errors).

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/cf5bbdf5-03ff-0606-a6d4-ca196d90aee9@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-09 11:36:39 -06:00
Drew DeVault 9f364b605f submitting-patches.rst: presume git will be used
Git is fairly ubiquitous these days, and the additional information in
this documentation for preparing patches without it is not especially
relevant anymore and may serve to confuse new contributors.

The git request-pull comments were also removed, given that it is not a
tool well-suited to novice contributors, nor do maintainers especially
appreciate receiving unexpected request-pulls from new contributors.

Signed-off-by: Drew DeVault <sir@cmpwn.com>
Link: https://lore.kernel.org/r/20200903160545.83185-5-sir@cmpwn.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-03 15:39:24 -06:00
Drew DeVault 4ebdf7be21 Documentation/maintainer: rehome sign-off process
The repeated sign-offs necessary when a subsystem maintainer modifies an
incoming patch has been moved from submitting-patches.rst to
Documentation/maintainer, since the affairs of a subsystem maintainer
are not especially relevant to someone reading a guide for how to submit
their first patch.

Signed-off-by: Drew DeVault <sir@cmpwn.com>
Link: https://lore.kernel.org/r/20200903160545.83185-4-sir@cmpwn.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-03 15:39:24 -06:00
Drew DeVault 7433ff33e8 Documentation/process: expand plain-text advice
This adds a link to https://useplaintext.email to email-clients.rst,
which is a more exhaustive resource on configuring various mail clients
for plain text use. submitting-patches.rst is also updated to direct
readers to email-clients.rst to equip new contributors with the
requisite knowledge to become a good participant on the mailing lists.

Signed-off-by: Drew DeVault <sir@cmpwn.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20200903160545.83185-3-sir@cmpwn.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-03 15:39:01 -06:00
Drew DeVault ef227c39b6 submitting-patches.rst: remove heading numbering
This follows similar changes throughout Documentation; these numbers
tend to get outdated and are not especially useful.

Signed-off-by: Drew DeVault <sir@cmpwn.com>
Link: https://lore.kernel.org/r/20200903160545.83185-2-sir@cmpwn.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-03 15:37:46 -06:00
Javier Garcia f67281a72b Documentation: process: step 2: Link to email list fixed.
In the past, these email lists where located at lists.redhat.com. This
is not longer the case and they are now at redhat.com/mailman/listinfo

Signed-off-by: Javier Garcia <javier@beren.dev>
Link: https://lore.kernel.org/r/20200901090949.14514-1-javier@beren.dev
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-09-03 10:31:03 -06:00
Dave Hansen 755a2f180c Documentation: clarify driver licensing rules
Greg has challenged some recent driver submitters on their license
choices. He was correct to do so, as the choices in these instances
did not always advance the aims of the submitters.

But, this left submitters (and the folks who help them pick licenses)
a bit confused. They have read things like
Documentation/process/license-rules.rst which says:

	individual source files can have a different license
	which is required to be compatible with the GPL-2.0

and Documentation/process/submitting-drivers.rst:

	We don't insist on any kind of exclusive GPL licensing,
	and if you wish ... you may well wish to release under
	multiple licenses.

As written, these appear a _bit_ more laissez faire than we've been in
practice lately. It sounds like we at least expect submitters to make
a well-reasoned license choice and to explain their rationale. It does
not appear that we blindly accept anything that is simply
GPLv2-compatible.

Drivers appear to be the most acute source of misunderstanding, so fix
the driver documentation first. Update it to clarify expectations.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: H. Peter Anvin <h.peter.anvin@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200814145625.8B708079@viggo.jf.intel.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-08-31 16:36:11 -06:00
Joe Perches 3942ea7a10 deprecated.rst: Remove now removed uninitialized_var
It's now gone from the kernel so remove it from the deprecated API text.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/5e10c1645dd8f735215cf54a74db0f8dd3f6cbd5.camel@perches.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-08-31 16:31:15 -06:00
Nick Desaulniers 3519c4d6e0 Documentation: add minimum clang/llvm version
Based on a vote at the LLVM BoF at Plumbers 2020, we decided to start
small, supporting just one formal upstream release of LLVM for now.

We can probably widen the support window of supported versions over
time.  Also, note that LLVM's release process is different than GCC's.
GCC tends to have 1 major release per year while releasing minor updates
to the past 3 major versions.  LLVM tends to support one major release
and one minor release every six months.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200826191555.3350406-1-ndesaulniers@google.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-08-31 16:30:20 -06:00
Krzysztof Kozlowski eb45fb2fb1 docs: process: Add cross-link to security-bugs
The submitting patches mentions criteria for a fix to be called
"security fix".  Add a link to document explaining the entire process
of handling security bugs.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20200827105319.9734-1-krzk@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-08-31 16:27:57 -06:00
Kees Cook 053f8fc7c1 docs: Fix function name trailing double-()s
I noticed a double-() in the deprecated.rst rendering today. Fix that
one and two others in the Documentation/ tree.

Acked-by: "Paul E. McKenney" <paulmck@kernel.org> # For RCU
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20200817233207.4083538-1-keescook@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-08-24 17:19:07 -06:00
Linus Torvalds dddcbc139e Merge tag 'docs-5.9-2' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
 "A handful of obvious fixes that wandered in during the merge window"

* tag 'docs-5.9-2' of git://git.lwn.net/linux:
  Documentation/locking/locktypes: fix the typo
  doc/zh_CN: resolve undefined label warning in admin-guide index
  doc/zh_CN: fix title heading markup in admin-guide cpu-load
  docs: remove the 2.6 "Upgrading I2C Drivers" guide
  docs: Correct the release date of 5.2 stable
  mailmap: Update comments for with format and more detalis
  docs: cdrom: Fix a typo and rst markup
  Doc: admin-guide: use correct legends in kernel-parameters.txt
  Documentation/features: refresh RISC-V arch support files
  documentation: coccinelle: Improve command example for make C={1,2}
  Core-api: Documentation: Replace deprecated :c:func: Usage
  Dev-tools: Documentation: Replace deprecated :c:func: Usage
  Filesystems: Documentation: Replace deprecated :c:func: Usage
  docs: trace: fix a typo
2020-08-13 13:57:45 -07:00
Billy Wilson cca73e4946 docs: Correct the release date of 5.2 stable
A table lists the 5.2 stable release date as September 15, but it was
released on July 7. This may confuse a reader who is trying to
understand the stable update release cycle.

Signed-off-by: Billy Wilson <billy_wilson@byu.edu>
Link: https://lore.kernel.org/r/20200806231754.7735-1-billy_wilson@byu.edu
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-08-11 10:48:52 -06:00
Linus Torvalds 2324d50d05 Merge tag 'docs-5.9' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
 "It's been a busy cycle for documentation - hopefully the busiest for a
  while to come. Changes include:

   - Some new Chinese translations

   - Progress on the battle against double words words and non-HTTPS
     URLs

   - Some block-mq documentation

   - More RST conversions from Mauro. At this point, that task is
     essentially complete, so we shouldn't see this kind of churn again
     for a while. Unless we decide to switch to asciidoc or
     something...:)

   - Lots of typo fixes, warning fixes, and more"

* tag 'docs-5.9' of git://git.lwn.net/linux: (195 commits)
  scripts/kernel-doc: optionally treat warnings as errors
  docs: ia64: correct typo
  mailmap: add entry for <alobakin@marvell.com>
  doc/zh_CN: add cpu-load Chinese version
  Documentation/admin-guide: tainted-kernels: fix spelling mistake
  MAINTAINERS: adjust kprobes.rst entry to new location
  devices.txt: document rfkill allocation
  PCI: correct flag name
  docs: filesystems: vfs: correct flag name
  docs: filesystems: vfs: correct sync_mode flag names
  docs: path-lookup: markup fixes for emphasis
  docs: path-lookup: more markup fixes
  docs: path-lookup: fix HTML entity mojibake
  CREDITS: Replace HTTP links with HTTPS ones
  docs: process: Add an example for creating a fixes tag
  doc/zh_CN: add Chinese translation prefer section
  doc/zh_CN: add clearing-warn-once Chinese version
  doc/zh_CN: add admin-guide index
  doc:it_IT: process: coding-style.rst: Correct __maybe_unused compiler label
  futex: MAINTAINERS: Re-add selftests directory
  ...
2020-08-04 22:47:54 -07:00
Linus Torvalds 99ea1521a0 Merge tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull uninitialized_var() macro removal from Kees Cook:
 "This is long overdue, and has hidden too many bugs over the years. The
  series has several "by hand" fixes, and then a trivial treewide
  replacement.

   - Clean up non-trivial uses of uninitialized_var()

   - Update documentation and checkpatch for uninitialized_var() removal

   - Treewide removal of uninitialized_var()"

* tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  compiler: Remove uninitialized_var() macro
  treewide: Remove uninitialized_var() usage
  checkpatch: Remove awareness of uninitialized_var() macro
  mm/debug_vm_pgtable: Remove uninitialized_var() usage
  f2fs: Eliminate usage of uninitialized_var() macro
  media: sur40: Remove uninitialized_var() usage
  KVM: PPC: Book3S PR: Remove uninitialized_var() usage
  clk: spear: Remove uninitialized_var() usage
  clk: st: Remove uninitialized_var() usage
  spi: davinci: Remove uninitialized_var() usage
  ide: Remove uninitialized_var() usage
  rtlwifi: rtl8192cu: Remove uninitialized_var() usage
  b43: Remove uninitialized_var() usage
  drbd: Remove uninitialized_var() usage
  x86/mm/numa: Remove uninitialized_var() usage
  docs: deprecated.rst: Add uninitialized_var()
2020-08-04 13:49:43 -07:00
Tom Rix 5b5bbb8cc5 docs: process: Add an example for creating a fixes tag
To make it a little clearer how to create a fixes tag,
add an example based on the preceeding gitconfig setup.

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20200710200115.21176-1-trix@redhat.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-23 14:49:23 -06:00
Daniel W. S. Almeida b6667585c2 docs: process/index.rst: Fix reference to nonexistent document
Fix the following warning:

WARNING: toctree contains reference to nonexistent document
'process/unaligned-memory-access'

The path to the document was wrong.

Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Link: https://lore.kernel.org/r/20200718165107.625847-5-dwlsalmeida@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-07-23 14:26:12 -06:00
Kees Cook 4b19bec97c docs: deprecated.rst: Add uninitialized_var()
Nothing should be using this macro, and the entire idea of tricking the
compiler into silencing such warnings is a mistake.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Joe Perches <joe@perches.com>
Cc: linux-doc@vger.kernel.org
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16 12:32:24 -07:00
Linus Torvalds 49decddd39 Merge tag 'inclusive-terminology' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/linux
Pull coding style terminology documentation from Dan Williams:
 "The discussion has tapered off as well as the incoming ack, review,
  and sign-off tags. I did not see a reason to wait for the next merge
  window"

* tag 'inclusive-terminology' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/linux:
  CodingStyle: Inclusive Terminology
2020-07-10 21:15:25 -07:00
Randy Dunlap 0bddd227f3 Documentation: update for gcc 4.9 requirement
Update Documentation for the gcc v4.9 upgrade requirement.

Fixes: 5429ef62bc ("compiler/gcc: Raise minimum GCC version for kernel builds to 4.8")
Fixes: 6ec4476ac8 ("Raise gcc version requirement to 4.9")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-08 12:28:44 -07:00
Dan Williams a5f526ecb0 CodingStyle: Inclusive Terminology
Linux maintains a coding-style and its own idiomatic set of terminology.
Update the style guidelines to recommend replacements for the terms
master/slave and blacklist/whitelist.

Link: http://lore.kernel.org/r/159389297140.2210796.13590142254668787525.stgit@dwillia2-desk3.amr.corp.intel.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: SeongJae Park <sjpark@amazon.de>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Laura Abbott <laura@labbott.name>
Acked-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-07-03 23:54:35 -07:00
Jonathan Corbet 435a774346 Merge branch 'mauro' into docs-next
A big set of fixes and RST conversions from Mauro.  He swears that this is
the last RST conversion set, which is certainly cause for celebration.
2020-06-26 11:35:10 -06:00