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authorJohannes Berg <[email protected]>2024-10-09 08:59:14 +0200
committerJohannes Berg <[email protected]>2024-10-09 08:59:22 +0200
commita0efa2f362a69e47b9d8b48f770ef3a0249a7911 (patch)
tree384d2c79a9b613213ef7591583d820d18c7be9c3 /rust/kernel/init/__internal.rs
parentdb03488897a70367aeafe82d07a78943d2a6068e (diff)
parent36efaca9cb28a893cad98f0448c39a8b698859e2 (diff)
Merge net-next/main to resolve conflicts
The wireless-next tree was based on something older, and there are now conflicts between -rc2 and work here. Merge net-next, which has enough of -rc2 for the conflicts to happen, resolving them in the process. Signed-off-by: Johannes Berg <[email protected]>
Diffstat (limited to 'rust/kernel/init/__internal.rs')
-rw-r--r--rust/kernel/init/__internal.rs29
1 files changed, 29 insertions, 0 deletions
diff --git a/rust/kernel/init/__internal.rs b/rust/kernel/init/__internal.rs
index db3372619ecd..13cefd37512f 100644
--- a/rust/kernel/init/__internal.rs
+++ b/rust/kernel/init/__internal.rs
@@ -228,3 +228,32 @@ impl OnlyCallFromDrop {
Self(())
}
}
+
+/// Initializer that always fails.
+///
+/// Used by [`assert_pinned!`].
+///
+/// [`assert_pinned!`]: crate::assert_pinned
+pub struct AlwaysFail<T: ?Sized> {
+ _t: PhantomData<T>,
+}
+
+impl<T: ?Sized> AlwaysFail<T> {
+ /// Creates a new initializer that always fails.
+ pub fn new() -> Self {
+ Self { _t: PhantomData }
+ }
+}
+
+impl<T: ?Sized> Default for AlwaysFail<T> {
+ fn default() -> Self {
+ Self::new()
+ }
+}
+
+// SAFETY: `__pinned_init` always fails, which is always okay.
+unsafe impl<T: ?Sized> PinInit<T, ()> for AlwaysFail<T> {
+ unsafe fn __pinned_init(self, _slot: *mut T) -> Result<(), ()> {
+ Err(())
+ }
+}