gpu: nova-core: bitfield: remove BitOr implementation

Using this operand can produce invalid values. It also doesn't bring
any benefit as one can use the builder pattern to assemble a new value.

Reported-by: Edwin Peer <epeer@nvidia.com>
Link: https://lore.kernel.org/rust-for-linux/F3853912-2C1C-4F9B-89B0-3168689F35B3@nvidia.com/
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251022-nova-bitfield-v1-3-73bc0988667b@nvidia.com>

diff --git a/drivers/gpu/nova-core/bitfield.rs b/drivers/gpu/nova-core/bitfield.rs
index f113439c6501ab4370dae61b5d676b8005e221c8..16e143658c511d415a059357ea43298072142650 100644 (file)
--- a/drivers/gpu/nova-core/bitfield.rs
+++ b/drivers/gpu/nova-core/bitfield.rs
@@ -94,7 +94,7 @@ macro_rules! bitfield {
     // All rules below are helpers.
 
     // Defines the wrapper `$name` type, as well as its relevant implementations (`Debug`,
-    // `Default`, `BitOr`, and conversion to the value type) and field accessor methods.
+    // `Default`, and conversion to the value type) and field accessor methods.
     (@core $vis:vis $name:ident $storage:ty $(, $comment:literal)? { $($fields:tt)* }) => {
         $(
         #[doc=$comment]
@@ -103,14 +103,6 @@ macro_rules! bitfield {
         #[derive(Clone, Copy)]
         $vis struct $name($storage);
 
-        impl ::core::ops::BitOr for $name {
-            type Output = Self;
-
-            fn bitor(self, rhs: Self) -> Self::Output {
-                Self(self.0 | rhs.0)
-            }
-        }
-
         impl ::core::convert::From<$name> for $storage {
             fn from(val: $name) -> $storage {
                 val.0