linux-kernel - [PATCH v2 0/3] rust: select AUXILIARY

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Message-Id: <20250515-aux_bus-v2-0-47c70f96ae9b@nvidia.com>
Date: Thu, 15 May 2025 17:23:17 +0900
From: Alexandre Courbot <acourbot@...dia.com>
To: 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>, Danilo Krummrich <dakr@...nel.org>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>
Cc: rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, 
 nouveau@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, 
 Alexandre Courbot <acourbot@...dia.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH v2 0/3] rust: select AUXILIARY_BUS instead of depending on
 it

I noticed this after trying to understand why my minimal Nova defconfig
was not selecting NOVA_CORE anymore and why I couldn't even find it in
menuconfig.

CONFIG_AUXILIARY_BUS cannot be enabled directly and must be selected by
another module. Options that depend on it thus cannot be enabled unless
a different module selecting AUXILIARY_BUS is also enabled.

All non-Rust modules using CONFIG_AUXILIARY_BUS select it, so it should
make sense for the Rust ones to use that scheme as well.

Btw Danilo, since the fixed patches are not in mainline yet, please feel
free to just squash these fixes into the original patches if you think
it makes more sense.

Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
---
Changes in v2:
- Added missing Fixes: tags.
- Collected Reviewed-by: tag.
- Link to v1: https://lore.kernel.org/r/20250515-aux_bus-v1-0-1781b54424e4@nvidia.com

---
Alexandre Courbot (3):
      samples: rust: select AUXILIARY_BUS instead of depending on it
      gpu: nova-core: select AUXILIARY_BUS instead of depending on it
      gpu: drm: nova: select AUXILIARY_BUS instead of depending on it

 drivers/gpu/drm/nova/Kconfig  | 2 +-
 drivers/gpu/nova-core/Kconfig | 2 +-
 samples/rust/Kconfig          | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
base-commit: 61479ae38cb7bf6083de302598b7d491ec54168a
change-id: 20250515-aux_bus-c9da900b7c3f

Best regards,
-- 
Alexandre Courbot <acourbot@...dia.com>