Introduce kref bindings for use in the Rust HID abstractions. Needed for
implementing the AlwaysRefCounted trait for kernel::hid::Device. Add rust
helpers for binding the kref_get and kref_put static inline C functions.
Signed-off-by: Rahul Rameshbabu <sergeantsagara@xxxxxxxxxxxxxx>
---
rust/bindings/bindings_helper.h | 1 +
rust/helpers/helpers.c | 1 +
rust/helpers/kref.c | 13 +++++++++++++
3 files changed, 15 insertions(+)
create mode 100644 rust/helpers/kref.c
diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helper.h
index 8cbb660e2ec2..41a98d5b6521 100644
--- a/rust/bindings/bindings_helper.h
+++ b/rust/bindings/bindings_helper.h
@@ -54,6 +54,7 @@
#include <linux/fs.h>
#include <linux/jiffies.h>
#include <linux/jump_label.h>
+#include <linux/kref.h>
#include <linux/mdio.h>
#include <linux/miscdevice.h>
#include <linux/of_device.h>
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c
index b15b3cddad4e..7f5403d6c51c 100644
--- a/rust/helpers/helpers.c
+++ b/rust/helpers/helpers.c
@@ -25,6 +25,7 @@
#include "fs.c"
#include "io.c"
#include "jump_label.c"
+#include "kref.c"
#include "kunit.c"
#include "mm.c"
#include "mutex.c"
diff --git a/rust/helpers/kref.c b/rust/helpers/kref.c
new file mode 100644
index 000000000000..25eeb0a724ac
--- /dev/null
+++ b/rust/helpers/kref.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/kref.h>
+
+void rust_helper_kref_get(struct kref *kref)
+{
+ kref_get(kref);
+}
+
+void rust_helper_kref_put(struct kref *kref, void (*release)(struct kref *kref))
+{
+ kref_put(kref, release);
+}
--
2.47.2
