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rust: regulator: implement Send and Sync for Regulator<T>

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Sending a &Regulator<T> to another thread is safe, as the regulator core
will properly handle the locking for us. Additionally, there are no
restrictions that prevents sending a Regulator<T> to another thread.

Given these two facts, implement Send and Sync.

Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20250729-regulator-send-sync-v1-2-8bcbd546b940@collabora.com
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Daniel Almeida 2025-07-29 14:31:41 -03:00 committed by Mark Brown
parent f7fbf3091f
commit 9a200cbdb5
1 changed files with 8 additions and 0 deletions
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8
rust/kernel/regulator.rs
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@ -398,6 +398,14 @@ fn drop(&mut self) {
}
}
// SAFETY: It is safe to send a `Regulator<T>` across threads. In particular, a
// Regulator<T> can be dropped from any thread.
unsafe impl<T: RegulatorState> Send for Regulator<T> {}
// SAFETY: It is safe to send a &Regulator<T> across threads because the C side
// handles its own locking.
unsafe impl<T: RegulatorState> Sync for Regulator<T> {}
/// A voltage.
///
/// This type represents a voltage value in microvolts.