9 files changed, 174 insertions, 4 deletions
diff --git a/rust/helpers/device.c b/rust/helpers/device.c
new file mode 100644
index 000000000000..b2135c6686b0
--- /dev/null
+++ b/rust/helpers/device.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/device.h>
+
+int rust_helper_devm_add_action(struct device *dev,
+				void (*action)(void *),
+				void *data)
+{
+	return devm_add_action(dev, action, data);
+}
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c
index dcf827a61b52..0640b7e115be 100644
--- a/rust/helpers/helpers.c
+++ b/rust/helpers/helpers.c
@@ -12,14 +12,19 @@
 #include "build_assert.c"
 #include "build_bug.c"
 #include "cred.c"
+#include "device.c"
 #include "err.c"
 #include "fs.c"
+#include "io.c"
 #include "jump_label.c"
 #include "kunit.c"
 #include "mutex.c"
 #include "page.c"
+#include "platform.c"
+#include "pci.c"
 #include "pid_namespace.c"
 #include "rbtree.c"
+#include "rcu.c"
 #include "refcount.c"
 #include "security.c"
 #include "signal.c"
diff --git a/rust/helpers/io.c b/rust/helpers/io.c
new file mode 100644
index 000000000000..15ea187c5466
--- /dev/null
+++ b/rust/helpers/io.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/io.h>
+
+void __iomem *rust_helper_ioremap(phys_addr_t offset, size_t size)
+{
+	return ioremap(offset, size);
+}
+
+void rust_helper_iounmap(void __iomem *addr)
+{
+	iounmap(addr);
+}
+
+u8 rust_helper_readb(const void __iomem *addr)
+{
+	return readb(addr);
+}
+
+u16 rust_helper_readw(const void __iomem *addr)
+{
+	return readw(addr);
+}
+
+u32 rust_helper_readl(const void __iomem *addr)
+{
+	return readl(addr);
+}
+
+#ifdef CONFIG_64BIT
+u64 rust_helper_readq(const void __iomem *addr)
+{
+	return readq(addr);
+}
+#endif
+
+void rust_helper_writeb(u8 value, void __iomem *addr)
+{
+	writeb(value, addr);
+}
+
+void rust_helper_writew(u16 value, void __iomem *addr)
+{
+	writew(value, addr);
+}
+
+void rust_helper_writel(u32 value, void __iomem *addr)
+{
+	writel(value, addr);
+}
+
+#ifdef CONFIG_64BIT
+void rust_helper_writeq(u64 value, void __iomem *addr)
+{
+	writeq(value, addr);
+}
+#endif
+
+u8 rust_helper_readb_relaxed(const void __iomem *addr)
+{
+	return readb_relaxed(addr);
+}
+
+u16 rust_helper_readw_relaxed(const void __iomem *addr)
+{
+	return readw_relaxed(addr);
+}
+
+u32 rust_helper_readl_relaxed(const void __iomem *addr)
+{
+	return readl_relaxed(addr);
+}
+
+#ifdef CONFIG_64BIT
+u64 rust_helper_readq_relaxed(const void __iomem *addr)
+{
+	return readq_relaxed(addr);
+}
+#endif
+
+void rust_helper_writeb_relaxed(u8 value, void __iomem *addr)
+{
+	writeb_relaxed(value, addr);
+}
+
+void rust_helper_writew_relaxed(u16 value, void __iomem *addr)
+{
+	writew_relaxed(value, addr);
+}
+
+void rust_helper_writel_relaxed(u32 value, void __iomem *addr)
+{
+	writel_relaxed(value, addr);
+}
+
+#ifdef CONFIG_64BIT
+void rust_helper_writeq_relaxed(u64 value, void __iomem *addr)
+{
+	writeq_relaxed(value, addr);
+}
+#endif
diff --git a/rust/helpers/mutex.c b/rust/helpers/mutex.c
index 7e00680958ef..06575553eda5 100644
--- a/rust/helpers/mutex.c
+++ b/rust/helpers/mutex.c
@@ -12,3 +12,8 @@ void rust_helper___mutex_init(struct mutex *mutex, const char *name,
 {
 	__mutex_init(mutex, name, key);
 }
+
+void rust_helper_mutex_assert_is_held(struct mutex *mutex)
+{
+	lockdep_assert_held(mutex);
+}
diff --git a/rust/helpers/pci.c b/rust/helpers/pci.c
new file mode 100644
index 000000000000..8ba22f911459
--- /dev/null
+++ b/rust/helpers/pci.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/pci.h>
+
+void rust_helper_pci_set_drvdata(struct pci_dev *pdev, void *data)
+{
+	pci_set_drvdata(pdev, data);
+}
+
+void *rust_helper_pci_get_drvdata(struct pci_dev *pdev)
+{
+	return pci_get_drvdata(pdev);
+}
+
+resource_size_t rust_helper_pci_resource_len(struct pci_dev *pdev, int bar)
+{
+	return pci_resource_len(pdev, bar);
+}
diff --git a/rust/helpers/platform.c b/rust/helpers/platform.c
new file mode 100644
index 000000000000..ab9b9f317301
--- /dev/null
+++ b/rust/helpers/platform.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/platform_device.h>
+
+void *rust_helper_platform_get_drvdata(const struct platform_device *pdev)
+{
+	return platform_get_drvdata(pdev);
+}
+
+void rust_helper_platform_set_drvdata(struct platform_device *pdev, void *data)
+{
+	platform_set_drvdata(pdev, data);
+}
diff --git a/rust/helpers/rcu.c b/rust/helpers/rcu.c
new file mode 100644
index 000000000000..f1cec6583513
--- /dev/null
+++ b/rust/helpers/rcu.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/rcupdate.h>
+
+void rust_helper_rcu_read_lock(void)
+{
+	rcu_read_lock();
+}
+
+void rust_helper_rcu_read_unlock(void)
+{
+	rcu_read_unlock();
+}
diff --git a/rust/helpers/security.c b/rust/helpers/security.c
index 239e5b4745fe..0c4c2065df28 100644
--- a/rust/helpers/security.c
+++ b/rust/helpers/security.c
@@ -8,13 +8,13 @@ void rust_helper_security_cred_getsecid(const struct cred *c, u32 *secid)
 	security_cred_getsecid(c, secid);
 }
 
-int rust_helper_security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+int rust_helper_security_secid_to_secctx(u32 secid, struct lsm_context *cp)
 {
-	return security_secid_to_secctx(secid, secdata, seclen);
+	return security_secid_to_secctx(secid, cp);
 }
 
-void rust_helper_security_release_secctx(char *secdata, u32 seclen)
+void rust_helper_security_release_secctx(struct lsm_context *cp)
 {
-	security_release_secctx(secdata, seclen);
+	security_release_secctx(cp);
 }
 #endif
diff --git a/rust/helpers/spinlock.c b/rust/helpers/spinlock.c
index 5971fdf6f755..42c4bf01a23e 100644
--- a/rust/helpers/spinlock.c
+++ b/rust/helpers/spinlock.c
@@ -30,3 +30,8 @@ int rust_helper_spin_trylock(spinlock_t *lock)
 {
 	return spin_trylock(lock);
 }
+
+void rust_helper_spin_assert_is_held(spinlock_t *lock)
+{
+	lockdep_assert_held(lock);
+}