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charset="utf-8" Content-Transfer-Encoding: quoted-printable Binder has some methods where the caller provides a lock guard, and Binder needs to be able to assert that the guard is associated with the right lock. To enable this, add an accessor to obtain a reference to the underlying lock that you can pass to `ptr::eq`. Signed-off-by: Alice Ryhl Reviewed-by: Fiona Behrens --- rust/kernel/sync/lock.rs | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/rust/kernel/sync/lock.rs b/rust/kernel/sync/lock.rs index 41dcddac69e2..681d67275b49 100644 --- a/rust/kernel/sync/lock.rs +++ b/rust/kernel/sync/lock.rs @@ -169,7 +169,12 @@ pub struct Guard<'a, T: ?Sized, B: Backend> { // SAFETY: `Guard` is sync when the data protected by the lock is also syn= c. unsafe impl Sync for Guard<'_, T, B> {} =20 -impl Guard<'_, T, B> { +impl<'a, T: ?Sized, B: Backend> Guard<'a, T, B> { + /// Returns the lock that this guard originates from. + pub fn lock(&self) -> &'a Lock { + self.lock + } + pub(crate) fn do_unlocked(&mut self, cb: impl FnOnce() -> U) -> U { // SAFETY: The caller owns the lock, so it is safe to unlock it. unsafe { B::unlock(self.lock.state.get(), &self.state) }; --- base-commit: ceff0757f5dafb5be5205988171809c877b1d3e3 change-id: 20250130-guard-get-lock-dd5452793d9a Best regards, --=20 Alice Ryhl