linux-kernel - [PATCH v8 4/6] gpu: nova-core: use ENOTSUPP for unsupported GPUs, in all cases

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Message-ID: <20251114024109.465136-5-jhubbard@nvidia.com>
Date: Thu, 13 Nov 2025 18:41:07 -0800
From: John Hubbard <jhubbard@...dia.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: Alexandre Courbot <acourbot@...dia.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Timur Tabi <ttabi@...dia.com>,
	Alistair Popple <apopple@...dia.com>,
	Edwin Peer <epeer@...dia.com>,
	Zhi Wang <zhiw@...dia.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Bjorn Helgaas <bhelgaas@...gle.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 <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	nouveau@...ts.freedesktop.org,
	rust-for-linux@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	John Hubbard <jhubbard@...dia.com>
Subject: [PATCH v8 4/6] gpu: nova-core: use ENOTSUPP for unsupported GPUs, in all cases

Some places in the driver use ENODEV for unsupported GPUs, while others
use ENOTSUPP. ENOTSUPP is more accurate, so change the ENODEV instances
to ENOTSUPP.

Cc: Alexandre Courbot <acourbot@...dia.com>
Cc: Danilo Krummrich <dakr@...nel.org>
Cc: Timur Tabi <ttabi@...dia.com>
Cc: Joel Fernandes <joelagnelf@...dia.com>
Signed-off-by: John Hubbard <jhubbard@...dia.com>
---
 drivers/gpu/nova-core/gpu.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs
index c1eca052968b..aa8e881dd474 100644
--- a/drivers/gpu/nova-core/gpu.rs
+++ b/drivers/gpu/nova-core/gpu.rs
@@ -62,7 +62,7 @@ impl TryFrom<u32> for Chipset {
             fn try_from(value: u32) -> Result<Self, Self::Error> {
                 match value {
                     $( $value => Ok(Chipset::$variant), )*
-                    _ => Err(ENODEV),
+                    _ => Err(ENOTSUPP),
                 }
             }
         }
@@ -143,7 +143,7 @@ fn try_from(value: u8) -> Result<Self> {
             0x16 => Ok(Self::Turing),
             0x17 => Ok(Self::Ampere),
             0x19 => Ok(Self::Ada),
-            _ => Err(ENODEV),
+            _ => Err(ENOTSUPP),
         }
     }
 }
-- 
2.51.2