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[v5,1/7] rust: time: Add PartialEq/Eq/PartialOrd/Ord trait to Ktime

Message ID 20241101010121.69221-2-fujita.tomonori@gmail.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series rust: Add IO polling | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

FUJITA Tomonori Nov. 1, 2024, 1:01 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>
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 e3bb5e89f88d..4a7c6037c256 100644
--- a/rust/kernel/time.rs
+++ b/rust/kernel/time.rs
@@ -27,7 +27,7 @@  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,
 }