[PATCH v2 23/27] rust: uaccess: add __rust_helper to helpers

From: Alice Ryhl
Date: Mon Jan 05 2026 - 08:13:59 EST


This is needed to inline these helpers into Rust code.

Reviewed-by: Boqun Feng <boqun.feng@xxxxxxxxx>
Reviewed-by: Gary Guo <gary@xxxxxxxxxxx>
Signed-off-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
---
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
rust/helpers/uaccess.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/rust/helpers/uaccess.c b/rust/helpers/uaccess.c
index 4629b2d15529abf20d02352d587808b621749c61..d9625b9ee04669777e01af05034af35218557050 100644
--- a/rust/helpers/uaccess.c
+++ b/rust/helpers/uaccess.c
@@ -2,24 +2,26 @@

#include <linux/uaccess.h>

-unsigned long rust_helper_copy_from_user(void *to, const void __user *from,
- unsigned long n)
+__rust_helper unsigned long
+rust_helper_copy_from_user(void *to, const void __user *from, unsigned long n)
{
return copy_from_user(to, from, n);
}

-unsigned long rust_helper_copy_to_user(void __user *to, const void *from,
- unsigned long n)
+__rust_helper unsigned long
+rust_helper_copy_to_user(void __user *to, const void *from, unsigned long n)
{
return copy_to_user(to, from, n);
}

#ifdef INLINE_COPY_FROM_USER
+__rust_helper
unsigned long rust_helper__copy_from_user(void *to, const void __user *from, unsigned long n)
{
return _inline_copy_from_user(to, from, n);
}

+__rust_helper
unsigned long rust_helper__copy_to_user(void __user *to, const void *from, unsigned long n)
{
return _inline_copy_to_user(to, from, n);

--
2.52.0.351.gbe84eed79e-goog