linux-kernel - [PATCH RFC v3 3/7] gpu: nova-core: derive useful traits for Chipset

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Message-Id: <20250320-nova_timer-v3-3-79aa2ad25a79@nvidia.com>
Date: Thu, 20 Mar 2025 22:39:11 +0900
From: Alexandre Courbot <acourbot@...dia.com>
To: Danilo Krummrich <dakr@...nel.org>, David Airlie <airlied@...il.com>, 
 John Hubbard <jhubbard@...dia.com>, Ben Skeggs <bskeggs@...dia.com>, 
 Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
 Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
 Benno Lossin <benno.lossin@...ton.me>, 
 Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
 Trevor Gross <tmgross@...ch.edu>, Simona Vetter <simona@...ll.ch>
Cc: linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
 nouveau@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, 
 Alexandre Courbot <acourbot@...dia.com>
Subject: [PATCH RFC v3 3/7] gpu: nova-core: derive useful traits for
 Chipset

We will commonly need to compare chipset versions, so derive the
ordering traits to make that possible. Also derive Copy and Clone since
Chipsets are as cheap as an integer.

Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
---
 drivers/gpu/nova-core/gpu.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs
index 17c9660da45034762edaa78e372d8821144cdeb7..4de67a2dc16302c00530026156d7264cbc7e5b32 100644
--- a/drivers/gpu/nova-core/gpu.rs
+++ b/drivers/gpu/nova-core/gpu.rs
@@ -13,7 +13,7 @@ macro_rules! define_chipset {
     ({ $($variant:ident = $value:expr),* $(,)* }) =>
     {
         /// Enum representation of the GPU chipset.
-        #[derive(fmt::Debug)]
+        #[derive(fmt::Debug, Copy, Clone, PartialOrd, Ord, PartialEq, Eq)]
         pub(crate) enum Chipset {
             $($variant = $value),*,
         }

-- 
2.48.1