[PATCH 2/3] rust: revocable: Use safe synchronize_rcu() abstraction

[Philipp Stanner <phasta@kernel.org>]

We now have a safe wrapper for the foreign function synchronize_rcu().

Use it in revocable.rs.

Signed-off-by: Philipp Stanner <phasta@kernel.org>
---
 rust/kernel/revocable.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/rust/kernel/revocable.rs b/rust/kernel/revocable.rs
index 0f4ae673256d..66d4ee38754c 100644
--- a/rust/kernel/revocable.rs
+++ b/rust/kernel/revocable.rs
@@ -7,7 +7,7 @@
 
 use pin_init::Wrapper;
 
-use crate::{bindings, prelude::*, sync::rcu, types::Opaque};
+use crate::{prelude::*, sync::rcu, types::Opaque};
 use core::{
     marker::PhantomData,
     ops::Deref,
@@ -161,8 +161,7 @@ unsafe fn revoke_internal<const SYNC: bool>(&self) -> bool {
 
         if revoke {
             if SYNC {
-                // SAFETY: Just an FFI call, there are no further requirements.
-                unsafe { bindings::synchronize_rcu() };
+                rcu::synchronize_rcu();
             }
 
             // SAFETY: We know `self.data` is valid because only one CPU can succeed the
-- 
2.54.0