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-rw-r--r--Documentation/rust/quick-start.rst18
1 files changed, 9 insertions, 9 deletions
diff --git a/Documentation/rust/quick-start.rst b/Documentation/rust/quick-start.rst
index f382914f41..cc3f11e0d4 100644
--- a/Documentation/rust/quick-start.rst
+++ b/Documentation/rust/quick-start.rst
@@ -33,14 +33,18 @@ A particular version of the Rust compiler is required. Newer versions may or
may not work because, for the moment, the kernel depends on some unstable
Rust features.
-If ``rustup`` is being used, enter the checked out source code directory
-and run::
+If ``rustup`` is being used, enter the kernel build directory (or use
+``--path=<build-dir>`` argument to the ``set`` sub-command) and run::
rustup override set $(scripts/min-tool-version.sh rustc)
This will configure your working directory to use the correct version of
-``rustc`` without affecting your default toolchain. If you are not using
-``rustup``, fetch a standalone installer from:
+``rustc`` without affecting your default toolchain.
+
+Note that the override applies to the current working directory (and its
+sub-directories).
+
+If you are not using ``rustup``, fetch a standalone installer from:
https://forge.rust-lang.org/infra/other-installation-methods.html#standalone
@@ -76,7 +80,7 @@ libclang
``libclang`` (part of LLVM) is used by ``bindgen`` to understand the C code
in the kernel, which means LLVM needs to be installed; like when the kernel
-is compiled with ``CC=clang`` or ``LLVM=1``.
+is compiled with ``LLVM=1``.
Linux distributions are likely to have a suitable one available, so it is
best to check that first.
@@ -229,10 +233,6 @@ at the moment. That is::
make LLVM=1
-For architectures that do not support a full LLVM toolchain, use::
-
- make CC=clang
-
Using GCC also works for some configurations, but it is very experimental at
the moment.