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-rw-r--r--Documentation/rust/general-information.rst8
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diff --git a/Documentation/rust/general-information.rst b/Documentation/rust/general-information.rst
index 4bb6ac12d482..e3f388ef4ee4 100644
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+++ b/Documentation/rust/general-information.rst
@@ -7,6 +7,14 @@ This document contains useful information to know when working with
the Rust support in the kernel.
+``no_std``
+----------
+
+The Rust support in the kernel can link only `core <https://doc.rust-lang.org/core/>`_,
+but not `std <https://doc.rust-lang.org/std/>`_. Crates for use in the
+kernel must opt into this behavior using the ``#![no_std]`` attribute.
+
+
Code documentation
------------------