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[v12,1/5] rust: time: Add PartialEq/Eq/PartialOrd/Ord trait to Ktime

Message ID 20250406013445.124688-2-fujita.tomonori@gmail.com (mailing list archive)
State Not Applicable
Headers show
Series rust: Add IO polling | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

FUJITA Tomonori April 6, 2025, 1:34 a.m. UTC 
Add PartialEq/Eq/PartialOrd/Ord trait to Ktime so two Ktime instances
can be compared to determine whether a timeout is met or not.

Use the derive implements; we directly touch C's ktime_t rather than
using the C's accessors because it is more efficient and we already do
in the existing code (Ktime::sub).

Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Fiona Behrens <me@kloenk.dev>
Tested-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
---
 rust/kernel/time.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/rust/kernel/time.rs b/rust/kernel/time.rs
index f509cb0eb71e..9d57e8a5552a 100644
--- a/rust/kernel/time.rs
+++ b/rust/kernel/time.rs
@@ -29,7 +29,7 @@  pub fn msecs_to_jiffies(msecs: Msecs) -> Jiffies {
 
 /// A Rust wrapper around a `ktime_t`.
 #[repr(transparent)]
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, PartialEq, PartialOrd, Eq, Ord)]
 pub struct Ktime {
     inner: bindings::ktime_t,
 }