From 23fca458f6ab18927e50c2134fb7b60297f18b4e Mon Sep 17 00:00:00 2001 From: Baptiste Lepers Date: Tue, 12 Aug 2025 16:42:11 +0200 Subject: rust: cpumask: Mark CpumaskVar as transparent Unsafe code in CpumaskVar's methods assumes that the type has the same layout as `bindings::cpumask_var_t`. This is not guaranteed by the default struct representation in Rust, but requires specifying the `transparent` representation. Fixes: 8961b8cb3099a ("rust: cpumask: Add initial abstractions") Signed-off-by: Baptiste Lepers Reviewed-by: Alice Ryhl Signed-off-by: Viresh Kumar --- rust/kernel/cpumask.rs | 1 + 1 file changed, 1 insertion(+) (limited to 'rust/kernel') diff --git a/rust/kernel/cpumask.rs b/rust/kernel/cpumask.rs index e311ab9038df..c1d17826ae7b 100644 --- a/rust/kernel/cpumask.rs +++ b/rust/kernel/cpumask.rs @@ -212,6 +212,7 @@ impl Cpumask { /// } /// assert_eq!(mask2.weight(), count); /// ``` +#[repr(transparent)] pub struct CpumaskVar { #[cfg(CONFIG_CPUMASK_OFFSTACK)] ptr: NonNull, -- cgit