linux-rng - Development tree for the kernel CSPRNG

Age	Commit message (Collapse)	Author	Files	Lines
2025-11-12	rust: debugfs: Replace the usage of Rust native atomics	Boqun Feng	1	-36/+17
	Rust native atomics are not allowed to use in kernel due to the mismatch of memory model with Linux kernel memory model, hence remove the usage of Rust native atomics in debufs. Reviewed-by: Matthew Maurer <mmaurer@google.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Tested-by: David Gow <davidgow@google.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Link: https://patch.msgid.link/20251022035324.70785-4-boqun.feng@gmail.com
2025-10-22	rust: debugfs: Implement Reader for Mutex<T> only when T is Unpin	Boqun Feng	1	-1/+1
	Since we are going to make `Mutex<T>` structurally pin the data (i.e. `T`), therefore `.lock()` function only returns a `Guard` that can dereference a mutable reference to `T` if only `T` is `Unpin`, therefore restrict the impl `Reader` block of `Mutex<T>` to that. Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://patch.msgid.link/20251022034237.70431-1-boqun.feng@gmail.com
2025-09-10	rust: debugfs: Add support for scoped directories	Matthew Maurer	1	-6/+67
	Introduces the concept of a `ScopedDir`, which allows for the creation of debugfs directories and files that are tied to the lifetime of a particular data structure. This ensures that debugfs entries do not outlive the data they refer to. The new `Dir::scope` method creates a new directory that is owned by a `Scope` handle. All files and subdirectories created within this scope are automatically cleaned up when the `Scope` is dropped. Signed-off-by: Matthew Maurer <mmaurer@google.com> Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250904-debugfs-rust-v11-6-7d12a165685a@google.com [ Fix up Result<(), Error> -> Result; fix spurious backtick in doc-comment. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-10	rust: debugfs: Add support for callback-based files	Matthew Maurer	2	-0/+130
	Extends the `debugfs` API to support creating files with content generated and updated by callbacks. This is done via the `read_callback_file`, `write_callback_file`, and `read_write_callback_file` methods. These methods allow for more flexible file definition, either because the type already has a `Writer` or `Reader` method that doesn't do what you'd like, or because you cannot implement it (e.g. because it's a type defined in another crate or a primitive type). Signed-off-by: Matthew Maurer <mmaurer@google.com> Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250904-debugfs-rust-v11-4-7d12a165685a@google.com [ Fix up Result<(), Error> -> Result. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-10	rust: debugfs: Add support for writable files	Matthew Maurer	2	-1/+181
	Extends the `debugfs` API to support creating writable files. This is done via the `Dir::write_only_file` and `Dir::read_write_file` methods, which take a data object that implements the `Reader` trait. Signed-off-by: Matthew Maurer <mmaurer@google.com> Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250904-debugfs-rust-v11-3-7d12a165685a@google.com [ Fix up Result<()> -> Result. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-10	rust: debugfs: Add support for read-only files	Matthew Maurer	3	-0/+203
	Extends the `debugfs` API to support creating read-only files. This is done via the `Dir::read_only_file` method, which takes a data object that implements the `Writer` trait. The file's content is generated by the `Writer` implementation, and the file is automatically removed when the returned `File` handle is dropped. Signed-off-by: Matthew Maurer <mmaurer@google.com> Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250904-debugfs-rust-v11-2-7d12a165685a@google.com [ Fixup build failure when CONFIG_DEBUGFS=n. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-10	rust: debugfs: Add initial support for directories	Matthew Maurer	1	-0/+61
	Adds a `debugfs::Dir` type that can be used to create and remove DebugFS directories. The `Dir` handle automatically cleans up the directory on `Drop`. Signed-off-by: Matthew Maurer <mmaurer@google.com> Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250904-debugfs-rust-v11-1-7d12a165685a@google.com Signed-off-by: Danilo Krummrich <dakr@kernel.org>