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author | Wedson Almeida Filho <walmeida@microsoft.com> | 2024-03-28 22:54:54 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-02 17:35:24 +0300 |
commit | 17b1d4472e0ebc107505e64a2b2ddce8dec8768d (patch) | |
tree | 04c9a4e14b10a4c10b664f8557b3126438d876f4 | |
parent | d09a4bf15b2c8a65e33b54eed2df2abe75d46f0e (diff) | |
download | linux-17b1d4472e0ebc107505e64a2b2ddce8dec8768d.tar.xz |
rust: kernel: require `Send` for `Module` implementations
commit 323617f649c0966ad5e741e47e27e06d3a680d8f upstream.
The thread that calls the module initialisation code when a module is
loaded is not guaranteed [in fact, it is unlikely] to be the same one
that calls the module cleanup code on module unload, therefore, `Module`
implementations must be `Send` to account for them moving from one
thread to another implicitly.
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Cc: stable@vger.kernel.org # 6.8.x: df70d04d5697: rust: phy: implement `Send` for `Registration`
Cc: stable@vger.kernel.org
Fixes: 247b365dc8dc ("rust: add `kernel` crate")
Link: https://lore.kernel.org/r/20240328195457.225001-3-wedsonaf@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | rust/kernel/lib.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs index 7ac39874aeac..75efe47522e4 100644 --- a/rust/kernel/lib.rs +++ b/rust/kernel/lib.rs @@ -66,7 +66,7 @@ const __LOG_PREFIX: &[u8] = b"rust_kernel\0"; /// The top level entrypoint to implementing a kernel module. /// /// For any teardown or cleanup operations, your type may implement [`Drop`]. -pub trait Module: Sized + Sync { +pub trait Module: Sized + Sync + Send { /// Called at module initialization time. /// /// Use this method to perform whatever setup or registration your module |