Merge tag 'rust-6.7' of https://github.com/Rust-for-Linux/linux

Pull rust updates from Miguel Ojeda:
 "A small one compared to the previous one in terms of features. In
  terms of lines, as usual, the 'alloc' version upgrade accounts for
  most of them.

  Toolchain and infrastructure:

   - Upgrade to Rust 1.73.0

     This time around, due to how the kernel and Rust schedules have
     aligned, there are two upgrades in fact. They contain the fixes for
     a few issues we reported to the Rust project.

     In addition, a few cleanups indicated by the upgraded compiler or
     possible thanks to it. For instance, the compiler now detects
     redundant explicit links.

   - A couple changes to the Rust 'Makefile' so that it can be used with
     toybox tools, allowing Rust to be used in the Android kernel build.

  x86:

   - Enable IBT if enabled in C

  Documentation:

   - Add "The Rust experiment" section to the Rust index page

  MAINTAINERS:

   - Add Maintainer Entry Profile field ('P:').

   - Update our 'W:' field to point to the webpage we have been building
     this year"

* tag 'rust-6.7' of https://github.com/Rust-for-Linux/linux:
  docs: rust: add "The Rust experiment" section
  x86: Enable IBT in Rust if enabled in C
  rust: Use grep -Ev rather than relying on GNU grep
  rust: Use awk instead of recent xargs
  rust: upgrade to Rust 1.73.0
  rust: print: use explicit link in documentation
  rust: task: remove redundant explicit link
  rust: kernel: remove `#[allow(clippy::new_ret_no_self)]`
  MAINTAINERS: add Maintainer Entry Profile field for Rust
  MAINTAINERS: update Rust webpage
  rust: upgrade to Rust 1.72.1
  rust: arc: add explicit `drop()` around `Box::from_raw()`

2 files changed, 20 insertions, 1 deletions

diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index b48da698d6f2..bb96ca0f774b 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -31,7 +31,7 @@ you probably needn't concern yourself with pcmciautils.
 ====================== ===============  ========================================
 GNU C                  5.1              gcc --version
 Clang/LLVM (optional)  11.0.0           clang --version
-Rust (optional)        1.71.1           rustc --version
+Rust (optional)        1.73.0           rustc --version
 bindgen (optional)     0.65.1           bindgen --version
 GNU make               3.82             make --version
 bash                   4.2              bash --version
diff --git a/Documentation/rust/index.rst b/Documentation/rust/index.rst
index e599be2cec9b..965f2db529e0 100644
--- a/Documentation/rust/index.rst
+++ b/Documentation/rust/index.rst
@@ -6,6 +6,25 @@ Rust
 Documentation related to Rust within the kernel. To start using Rust
 in the kernel, please read the quick-start.rst guide.
 
+
+The Rust experiment
+-------------------
+
+The Rust support was merged in v6.1 into mainline in order to help in
+determining whether Rust as a language was suitable for the kernel, i.e. worth
+the tradeoffs.
+
+Currently, the Rust support is primarily intended for kernel developers and
+maintainers interested in the Rust support, so that they can start working on
+abstractions and drivers, as well as helping the development of infrastructure
+and tools.
+
+If you are an end user, please note that there are currently no in-tree
+drivers/modules suitable or intended for production use, and that the Rust
+support is still in development/experimental, especially for certain kernel
+configurations.
+
+
 .. only:: rustdoc and html
 
 	You can also browse `rustdoc documentation <rustdoc/kernel/index.html>`_.