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From: Danilo Krummrich <dakr@kernel.org>
To: dakr@kernel.org, aliceryhl@google.com, acourbot@nvidia.com,
	daniel.almeida@collabora.com, ojeda@kernel.org, boqun@kernel.org,
	gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org,
	a.hindborg@kernel.org, tmgross@umich.edu, tamird@kernel.org,
	work@onurozkan.dev, brauner@kernel.org, lyude@redhat.com,
	j@jananu.net, alvin.sun@linux.dev, deborah.brouwer@collabora.com,
	laura.nao@collabora.com, beata.michalska@arm.com
Cc: nova-gpu@lists.linux.dev, dri-devel@lists.freedesktop.org,
	rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/7] rust: drm: move file_operations from gem to device
Date: Sat, 15 Aug 2026 01:09:01 +0200	[thread overview]
Message-ID: <20260814230923.1292966-4-dakr@kernel.org> (raw)
In-Reply-To: <20260814230923.1292966-1-dakr@kernel.org>

Move the file_operations definition from drm::gem::create_fops() into
UnregisteredDevice in drm::device. This is the file_operations of the
DRM minor device, set through the drm_driver struct. It is not specific
to GEM.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---
 rust/kernel/drm/device.rs  | 22 ++++++++++++++++++++--
 rust/kernel/drm/gem/mod.rs | 20 --------------------
 2 files changed, 20 insertions(+), 22 deletions(-)

diff --git a/rust/kernel/drm/device.rs b/rust/kernel/drm/device.rs
index be83287fe161..a2940e172073 100644
--- a/rust/kernel/drm/device.rs
+++ b/rust/kernel/drm/device.rs
@@ -195,10 +195,28 @@ const fn compute_features() -> u32 {
         driver_features: Self::compute_features(),
         ioctls: T::IOCTLS.as_ptr(),
         num_ioctls: T::IOCTLS.len() as i32,
-        fops: &Self::GEM_FOPS,
+        fops: &Self::FOPS,
     };
 
-    const GEM_FOPS: bindings::file_operations = drm::gem::create_fops();
+    const FOPS: bindings::file_operations = {
+        let mut fops: bindings::file_operations = pin_init::zeroed();
+
+        fops.owner = core::ptr::null_mut();
+        fops.open = Some(bindings::drm_open);
+        fops.release = Some(bindings::drm_release);
+        fops.unlocked_ioctl = Some(bindings::drm_ioctl);
+        #[cfg(CONFIG_COMPAT)]
+        {
+            fops.compat_ioctl = Some(bindings::drm_compat_ioctl);
+        }
+        fops.poll = Some(bindings::drm_poll);
+        fops.read = Some(bindings::drm_read);
+        fops.llseek = Some(bindings::noop_llseek);
+        fops.mmap = Some(bindings::drm_gem_mmap);
+        fops.fop_flags = bindings::FOP_UNSIGNED_OFFSET;
+
+        fops
+    };
 
     /// Create a new `UnregisteredDevice` for a `drm::Driver`.
     ///
diff --git a/rust/kernel/drm/gem/mod.rs b/rust/kernel/drm/gem/mod.rs
index 560403ca8e38..ee048febfbdc 100644
--- a/rust/kernel/drm/gem/mod.rs
+++ b/rust/kernel/drm/gem/mod.rs
@@ -399,23 +399,3 @@ impl<T: DriverObject, Ctx: DeviceContext> AllocImpl for Object<T, Ctx> {
         dumb_map_offset: None,
     };
 }
-
-pub(super) const fn create_fops() -> bindings::file_operations {
-    let mut fops: bindings::file_operations = pin_init::zeroed();
-
-    fops.owner = core::ptr::null_mut();
-    fops.open = Some(bindings::drm_open);
-    fops.release = Some(bindings::drm_release);
-    fops.unlocked_ioctl = Some(bindings::drm_ioctl);
-    #[cfg(CONFIG_COMPAT)]
-    {
-        fops.compat_ioctl = Some(bindings::drm_compat_ioctl);
-    }
-    fops.poll = Some(bindings::drm_poll);
-    fops.read = Some(bindings::drm_read);
-    fops.llseek = Some(bindings::noop_llseek);
-    fops.mmap = Some(bindings::drm_gem_mmap);
-    fops.fop_flags = bindings::FOP_UNSIGNED_OFFSET;
-
-    fops
-}
-- 
2.55.0


  parent reply	other threads:[~2026-08-14 23:09 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-14 23:08 [PATCH 0/7] lifetime-parameterized DRM File private data Danilo Krummrich
2026-08-14 23:08 ` [PATCH 1/7] rust: drm: rename Ioctl device context to Userspace Danilo Krummrich
2026-08-14 23:09 ` [PATCH 2/7] rust: drm: gem: gate open/close callbacks with RegistrationGuard Danilo Krummrich
2026-08-14 23:21   ` sashiko-bot
2026-08-14 23:09 ` Danilo Krummrich [this message]
2026-08-14 23:22   ` [PATCH 3/7] rust: drm: move file_operations from gem to device sashiko-bot
2026-08-14 23:09 ` [PATCH 4/7] rust: fs: add iminor() helper Danilo Krummrich
2026-08-14 23:09 ` [PATCH 5/7] rust: drm: wrap fops open with RegistrationGuard Danilo Krummrich
2026-08-14 23:29   ` sashiko-bot
2026-08-14 23:09 ` [PATCH 6/7] rust: drm: make Driver::File lifetime-parameterized Danilo Krummrich
2026-08-14 23:23   ` sashiko-bot
2026-08-14 23:09 ` [PATCH 7/7] rust: drm: return impl PinInit from DriverFile::open() Danilo Krummrich

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