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Miguel Ojeda 8e95e53ca3 rust: allow stable_features lint 
Support for several Rust compiler versions started in commit 63b27f4a00
("rust: start supporting several compiler versions"). Since we currently
need to use a number of unstable features in the kernel, it is a matter
of time until one gets stabilized and the `stable_features` lint warns.

For instance, the `new_uninit` feature may become stable soon, which
would give us multiple warnings like the following:

    warning: the feature `new_uninit` has been stable since 1.82.0-dev
    and no longer requires an attribute to enable
      --> rust/kernel/lib.rs:17:12
       |
    17 | #![feature(new_uninit)]
       |            ^^^^^^^^^^
       |
       = note: `#[warn(stable_features)]` on by default

Thus allow the `stable_features` lint to avoid such warnings. This is
the simplest approach -- we do not have that many cases (and the goal
is to stop using unstable features anyway) and cleanups can be easily
done when we decide to update the minimum version.

An alternative would be to conditionally enable them based on the
compiler version (with the upcoming `RUSTC_VERSION` or maybe with the
unstable `cfg(version(...))`, but that one apparently will not work for
the nightly case). However, doing so is more complex and may not work
well for different nightlies of the same version, unless we do not care
about older nightlies.

Another alternative is using explicit tests of the feature calling
`rustc`, but that is also more complex and slower.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240827100403.376389-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
History 2024-08-27 22:50:09 +02:00
arch Driver core fixes for 6.11-rc4 2024-08-18 10:19:49 -07:00
block block: Fix lockdep warning in blk_mq_mark_tag_wait 2024-08-15 19:25:03 -06:00
certs kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
crypto crypto: testmgr - generate power-of-2 lengths more often 2024-07-13 11:50:28 +12:00
Documentation docs: rust: remove unintended blockquote in Quick Start 2024-08-27 22:44:29 +02:00
drivers Char/Misc fixes for 6.11-rc4 2024-08-18 10:16:34 -07:00
fs for-6.11-rc3-tag 2024-08-18 08:50:36 -07:00
include Char/Misc fixes for 6.11-rc4 2024-08-18 10:16:34 -07:00
init Rust fixes for v6.11 2024-08-16 11:24:06 -07:00
io_uring io_uring/sqpoll: annotate debug task == current with data_race() 2024-08-13 06:10:59 -06:00
ipc sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
kernel 16 hotfixes. All except one are for MM. 10 of these are cc:stable and 2024-08-17 19:50:16 -07:00
lib bcachefs fixes for 6.11-rc4 2024-08-17 09:46:10 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm 16 hotfixes. All except one are for MM. 10 of these are cc:stable and 2024-08-17 19:50:16 -07:00
net Including fixes from wireless and netfilter 2024-08-15 10:35:20 -07:00
rust rust: alloc: eschew Box<MaybeUninit<T>>::write 2024-08-27 00:07:05 +02:00
samples Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
scripts Rust fixes for v6.11 2024-08-16 11:24:06 -07:00
security KEYS: trusted: dcp: fix leak of blob encryption key 2024-08-15 22:01:14 +03:00
sound ALSA: hda/tas2781: Use correct endian conversion 2024-08-14 16:58:26 +02:00
tools 16 hotfixes. All except one are for MM. 10 of these are cc:stable and 2024-08-17 19:50:16 -07:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt KVM: x86: Disallow read-only memslots for SEV-ES and SEV-SNP (and TDX) 2024-08-14 12:28:24 -04:00
.clang-format Docs: Move clang-format from process/ to dev-tools/ 2024-06-26 16:36:00 -06:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: add script and target to generate pacman package 2024-07-22 01:24:22 +09:00
.mailmap mailmap: update entry for David Heidelberg 2024-08-07 18:33:56 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS tracing: Update of MAINTAINERS and CREDITS file 2024-07-18 14:08:42 -07:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS sound fixes for 6.11-rc3 2024-08-09 09:25:30 -07:00
Makefile rust: allow stable_features lint 2024-08-27 22:50:09 +02:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.