diff --git a/Cargo.lock b/Cargo.lock
index c4c0c7b23..da30ad9b9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -277,6 +277,7 @@ dependencies = [
  "aster-rights",
  "aster-rights-proc",
  "bitvec",
+ "inherit-methods-macro",
  "ktest",
  "pod",
  "typeflags-util",
diff --git a/framework/aster-frame/src/vm/dma/mod.rs b/framework/aster-frame/src/vm/dma/mod.rs
index f38fd7c00..7d5c22f34 100644
--- a/framework/aster-frame/src/vm/dma/mod.rs
+++ b/framework/aster-frame/src/vm/dma/mod.rs
@@ -7,6 +7,7 @@ use alloc::collections::BTreeSet;
 
 pub use dma_coherent::DmaCoherent;
 pub use dma_stream::{DmaDirection, DmaStream, DmaStreamSlice};
+use inherit_methods_macro::inherit_methods;
 use spin::Once;
 
 use super::Paddr;
@@ -36,6 +37,11 @@ pub trait HasDaddr {
     fn daddr(&self) -> Daddr;
 }
 
+#[inherit_methods(from = "(**self)")]
+impl<T: HasDaddr> HasDaddr for &T {
+    fn daddr(&self) -> Daddr;
+}
+
 /// Set of all physical addresses with dma mapping.
 static DMA_MAPPING_SET: Once<SpinLock<BTreeSet<Paddr>>> = Once::new();
 
diff --git a/kernel/comps/virtio/src/device/input/device.rs b/kernel/comps/virtio/src/device/input/device.rs
index 9f2b8c988..948fc3197 100644
--- a/kernel/comps/virtio/src/device/input/device.rs
+++ b/kernel/comps/virtio/src/device/input/device.rs
@@ -250,11 +250,11 @@ impl EventTable {
         Self { stream, num_events }
     }
 
-    fn get(&self, idx: usize) -> EventBuf {
+    fn get(&self, idx: usize) -> EventBuf<'_> {
         assert!(idx < self.num_events);
 
         let offset = idx * EVENT_SIZE;
-        SafePtr::new(self.stream.clone(), offset)
+        SafePtr::new(&self.stream, offset)
     }
 
     const fn num_events(&self) -> usize {
@@ -263,7 +263,7 @@ impl EventTable {
 }
 
 const EVENT_SIZE: usize = core::mem::size_of::<VirtioInputEvent>();
-type EventBuf = SafePtr<VirtioInputEvent, DmaStream>;
+type EventBuf<'a> = SafePtr<VirtioInputEvent, &'a DmaStream>;
 
 impl<T, M: HasDaddr> DmaBuf for SafePtr<T, M> {
     fn len(&self) -> usize {
diff --git a/kernel/libs/aster-util/Cargo.toml b/kernel/libs/aster-util/Cargo.toml
index d21d6723f..b821939cd 100644
--- a/kernel/libs/aster-util/Cargo.toml
+++ b/kernel/libs/aster-util/Cargo.toml
@@ -12,5 +12,6 @@ typeflags-util = { path = "../typeflags-util" }
 aster-rights-proc = { path = "../aster-rights-proc" }
 aster-rights = { path = "../aster-rights" }
 bitvec = { version = "1.0", default-features = false, features = ["alloc"] }
+inherit-methods-macro = { git = "https://github.com/asterinas/inherit-methods-macro", rev = "98f7e3e" }
 ktest = { path = "../../../framework/libs/ktest" }
 [features]
diff --git a/kernel/libs/aster-util/src/safe_ptr.rs b/kernel/libs/aster-util/src/safe_ptr.rs
index 8fc110f8c..540582e87 100644
--- a/kernel/libs/aster-util/src/safe_ptr.rs
+++ b/kernel/libs/aster-util/src/safe_ptr.rs
@@ -8,6 +8,7 @@ use aster_frame::{
 };
 use aster_rights::{Dup, Exec, Full, Read, Signal, TRightSet, TRights, Write};
 use aster_rights_proc::require;
+use inherit_methods_macro::inherit_methods;
 pub use pod::Pod;
 pub use typeflags_util::SetContain;
 
@@ -337,6 +338,11 @@ impl<T, R> SafePtr<T, DmaStream, R> {
     }
 }
 
+#[inherit_methods(from = "(*self)")]
+impl<'a, T, R> SafePtr<T, &'a DmaStream, R> {
+    pub fn sync(&self) -> Result<()>;
+}
+
 #[require(R > Dup)]
 impl<T, M: Clone, R: TRights> Clone for SafePtr<T, M, TRightSet<R>> {
     fn clone(&self) -> Self {