diff options
| author | Danilo Krummrich <dakr@kernel.org> | 2026-05-25 22:20:51 +0200 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-05-27 16:22:41 +0200 |
| commit | 7fdffdda630ee61ae0e09ef8f1ace52bbf70e2b0 (patch) | |
| tree | 82bdea83290b72b76d053411b4f571a830172b30 /drivers | |
| parent | c8a43666bade4683640dc835f92cd456d29cee55 (diff) | |
rust: driver: decouple driver private data from driver type
Add a type Data<'bound> associated type to all bus driver traits,
decoupling the driver's bus device private data type from the driver
struct itself.
In the context of adding a 'bound lifetime, making this an associated
type has the advantage that it allows us to avoid a driver trait global
lifetime and it avoids the need for ForLt for bus device private data;
both of which make the subsequent implementation by buses much simpler.
All existing drivers and doc examples set type Data = Self to preserve
the current behavior.
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260525202921.124698-5-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpufreq/rcpufreq_dt.rs | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nova/driver.rs | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/tyr/driver.rs | 1 | ||||
| -rw-r--r-- | drivers/gpu/nova-core/driver.rs | 1 | ||||
| -rw-r--r-- | drivers/pwm/pwm_th1520.rs | 1 |
5 files changed, 5 insertions, 0 deletions
diff --git a/drivers/cpufreq/rcpufreq_dt.rs b/drivers/cpufreq/rcpufreq_dt.rs index f17bf64c22e2..b7eeb2730eb0 100644 --- a/drivers/cpufreq/rcpufreq_dt.rs +++ b/drivers/cpufreq/rcpufreq_dt.rs @@ -201,6 +201,7 @@ kernel::of_device_table!( impl platform::Driver for CPUFreqDTDriver { type IdInfo = (); + type Data = Self; const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE); fn probe( diff --git a/drivers/gpu/drm/nova/driver.rs b/drivers/gpu/drm/nova/driver.rs index b1af0a099551..08136ec0bccb 100644 --- a/drivers/gpu/drm/nova/driver.rs +++ b/drivers/gpu/drm/nova/driver.rs @@ -51,6 +51,7 @@ kernel::auxiliary_device_table!( impl auxiliary::Driver for NovaDriver { type IdInfo = (); + type Data = Self; const ID_TABLE: auxiliary::IdTable<Self::IdInfo> = &AUX_TABLE; fn probe(adev: &auxiliary::Device<Core>, _info: &Self::IdInfo) -> impl PinInit<Self, Error> { diff --git a/drivers/gpu/drm/tyr/driver.rs b/drivers/gpu/drm/tyr/driver.rs index 279710b36a10..c81bf217743d 100644 --- a/drivers/gpu/drm/tyr/driver.rs +++ b/drivers/gpu/drm/tyr/driver.rs @@ -91,6 +91,7 @@ kernel::of_device_table!( impl platform::Driver for TyrPlatformDriverData { type IdInfo = (); + type Data = Self; const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE); fn probe( diff --git a/drivers/gpu/nova-core/driver.rs b/drivers/gpu/nova-core/driver.rs index 8fe484d357f6..699e27046c93 100644 --- a/drivers/gpu/nova-core/driver.rs +++ b/drivers/gpu/nova-core/driver.rs @@ -74,6 +74,7 @@ kernel::pci_device_table!( impl pci::Driver for NovaCore { type IdInfo = (); + type Data = Self; const ID_TABLE: pci::IdTable<Self::IdInfo> = &PCI_TABLE; fn probe(pdev: &pci::Device<Core>, _info: &Self::IdInfo) -> impl PinInit<Self, Error> { diff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs index ddd44a5ce497..07795910a0b5 100644 --- a/drivers/pwm/pwm_th1520.rs +++ b/drivers/pwm/pwm_th1520.rs @@ -316,6 +316,7 @@ kernel::of_device_table!( impl platform::Driver for Th1520PwmPlatformDriver { type IdInfo = (); + type Data = Self; const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE); fn probe( |