linux-kernel - [PATCH v6 4/6] rust: platform: Set `OF_ID_TABLE` default to `None` in `Driver` trait

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Message-ID: <20250613134510.1231709-1-igor.korotin.linux@gmail.com>
Date: Fri, 13 Jun 2025 14:45:10 +0100
From: Igor Korotin <igor.korotin.linux@...il.com>
To: ojeda@...nel.org,
	alex.gaynor@...il.com,
	rafael@...nel.org,
	gregkh@...uxfoundation.org,
	linux-kernel@...r.kernel.org,
	rust-for-linux@...r.kernel.org,
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Subject: [PATCH v6 4/6] rust: platform: Set `OF_ID_TABLE` default to `None` in `Driver` trait

Provide a default value of `None` for `Driver::OF_ID_TABLE` to simplify
driver implementations.

Drivers that do not require OpenFirmware matching no longer need to
import the `of` module or define the constant explicitly.

This reduces unnecessary boilerplate and avoids pulling in unused
dependencies.

Signed-off-by: Igor Korotin <igor.korotin.linux@...il.com>
---
 rust/kernel/platform.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs
index 5923d29a0511..2436f55b579b 100644
--- a/rust/kernel/platform.rs
+++ b/rust/kernel/platform.rs
@@ -162,7 +162,7 @@ pub trait Driver: Send {
     type IdInfo: 'static;
 
     /// The table of OF device ids supported by the driver.
-    const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>>;
+    const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = None;
 
     /// Platform driver probe.
     ///
-- 
2.43.0