5 files changed, 67 insertions, 0 deletions
diff --git a/rust/helpers/binder.c b/rust/helpers/binder.c
new file mode 100644
index 000000000000..224d38a92f1d
--- /dev/null
+++ b/rust/helpers/binder.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2025 Google LLC.
+ */
+
+#include <linux/list_lru.h>
+#include <linux/task_work.h>
+
+unsigned long rust_helper_list_lru_count(struct list_lru *lru)
+{
+	return list_lru_count(lru);
+}
+
+unsigned long rust_helper_list_lru_walk(struct list_lru *lru,
+					list_lru_walk_cb isolate, void *cb_arg,
+					unsigned long nr_to_walk)
+{
+	return list_lru_walk(lru, isolate, cb_arg, nr_to_walk);
+}
+
+void rust_helper_init_task_work(struct callback_head *twork,
+				task_work_func_t func)
+{
+	init_task_work(twork, func);
+}
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c
index 9aa2735d203c..551da6c9b506 100644
--- a/rust/helpers/helpers.c
+++ b/rust/helpers/helpers.c
@@ -10,6 +10,7 @@
 #include "atomic.c"
 #include "auxiliary.c"
 #include "barrier.c"
+#include "binder.c"
 #include "bitmap.c"
 #include "bitops.c"
 #include "blk.c"
diff --git a/rust/helpers/page.c b/rust/helpers/page.c
index b3f2b8fbf87f..7144de5a61db 100644
--- a/rust/helpers/page.c
+++ b/rust/helpers/page.c
@@ -2,6 +2,7 @@
 
 #include <linux/gfp.h>
 #include <linux/highmem.h>
+#include <linux/mm.h>
 
 struct page *rust_helper_alloc_pages(gfp_t gfp_mask, unsigned int order)
 {
@@ -17,3 +18,10 @@ void rust_helper_kunmap_local(const void *addr)
 {
 	kunmap_local(addr);
 }
+
+#ifndef NODE_NOT_IN_PAGE_FLAGS
+int rust_helper_page_to_nid(const struct page *page)
+{
+	return page_to_nid(page);
+}
+#endif
diff --git a/rust/helpers/security.c b/rust/helpers/security.c
index 0c4c2065df28..ca22da09548d 100644
--- a/rust/helpers/security.c
+++ b/rust/helpers/security.c
@@ -17,4 +17,28 @@ void rust_helper_security_release_secctx(struct lsm_context *cp)
 {
 	security_release_secctx(cp);
 }
+
+int rust_helper_security_binder_set_context_mgr(const struct cred *mgr)
+{
+	return security_binder_set_context_mgr(mgr);
+}
+
+int rust_helper_security_binder_transaction(const struct cred *from,
+					    const struct cred *to)
+{
+	return security_binder_transaction(from, to);
+}
+
+int rust_helper_security_binder_transfer_binder(const struct cred *from,
+						const struct cred *to)
+{
+	return security_binder_transfer_binder(from, to);
+}
+
+int rust_helper_security_binder_transfer_file(const struct cred *from,
+					      const struct cred *to,
+					      const struct file *file)
+{
+	return security_binder_transfer_file(from, to, file);
+}
 #endif
diff --git a/rust/helpers/usb.c b/rust/helpers/usb.c
new file mode 100644
index 000000000000..fb2aad0cbf4d
--- /dev/null
+++ b/rust/helpers/usb.c
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/usb.h>
+
+struct usb_device *rust_helper_interface_to_usbdev(struct usb_interface *intf)
+{
+	return interface_to_usbdev(intf);
+}