From 095780f5e3ea256da950117c86d3bb91b0b5a869 Mon Sep 17 00:00:00 2001
From: Alexandru Radovici <alexandru.radovici@wyliodrin.com>
Date: Mon, 27 Oct 2025 00:31:50 +0200
Subject: [PATCH] add a function that that returns a reference to the IoPort
 Resource

---
 rust/kernel/io/resource.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/rust/kernel/io/resource.rs b/rust/kernel/io/resource.rs
index bea3ee0ed87b51..b7d74673676d0e 100644
--- a/rust/kernel/io/resource.rs
+++ b/rust/kernel/io/resource.rs
@@ -18,6 +18,13 @@ use crate::types::Opaque;
 /// `CONFIG_PHYS_ADDR_T_64BIT`, and it can be a u64 even on 32-bit architectures.
 pub type ResourceSize = bindings::phys_addr_t;
 
+#[cfg(CONFIG_HAS_IOPORT)]
+/// Returns a reference to the global `ioport_resource` variable.
+pub fn ioport_resource() -> &'static Resource {
+    // SAFETY: `bindings::ioport_resoure` has global lifetime and is of type Resource.
+    unsafe { Resource::from_raw(&raw mut bindings::ioport_resource) }
+}
+
 /// A region allocated from a parent [`Resource`].
 ///
 /// # Invariants