[PATCH v3 4/6] rust: drm: set fops.owner from driver module pointer
From: Alvin Sun <hidden>
Date: 2026-06-22 02:45:05
Also in:
b4-sent, dri-devel, driver-core, linux-block, linux-kselftest, lkml, nova-gpu, rust-for-linux
Subsystem:
drm drivers, drm drivers and common infrastructure [rust], rust, the rest · Maintainers:
David Airlie, Simona Vetter, Danilo Krummrich, Alice Ryhl, Miguel Ojeda, Linus Torvalds
Change `create_fops()` to accept an owner module pointer instead of hardcoding `null_mut()`, ensuring the kernel correctly tracks the module owning the DRM device's file operations. Signed-off-by: Alvin Sun <redacted> --- rust/kernel/drm/device.rs | 3 ++- rust/kernel/drm/gem/mod.rs | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/rust/kernel/drm/device.rs b/rust/kernel/drm/device.rs
index 403fc35353c74..221667d843c41 100644
--- a/rust/kernel/drm/device.rs
+++ b/rust/kernel/drm/device.rs@@ -111,7 +111,8 @@ impl<T: drm::Driver> Device<T> { fops: &Self::GEM_FOPS, }; - const GEM_FOPS: bindings::file_operations = drm::gem::create_fops(); + const GEM_FOPS: bindings::file_operations = + drm::gem::create_fops(crate::this_module::<T::OwnerModule>().as_ptr()); /// Create a new `drm::Device` for a `drm::Driver`. pub fn new(dev: &device::Device, data: impl PinInit<T::Data, Error>) -> Result<ARef<Self>> {
diff --git a/rust/kernel/drm/gem/mod.rs b/rust/kernel/drm/gem/mod.rs
index 01b5bd47a3332..9a203efc59116 100644
--- a/rust/kernel/drm/gem/mod.rs
+++ b/rust/kernel/drm/gem/mod.rs@@ -357,10 +357,10 @@ impl<T: DriverObject> AllocImpl for Object<T> { }; } -pub(super) const fn create_fops() -> bindings::file_operations { +pub(super) const fn create_fops(owner: *mut bindings::module) -> bindings::file_operations { let mut fops: bindings::file_operations = pin_init::zeroed(); - fops.owner = core::ptr::null_mut(); + fops.owner = owner; fops.open = Some(bindings::drm_open); fops.release = Some(bindings::drm_release); fops.unlocked_ioctl = Some(bindings::drm_ioctl);
--
2.43.0