rust: device: make Core and CoreInternal lifetime-parameterized

Device<Core> references in probe callbacks are scoped to the callback,
not the full binding duration. Add a lifetime parameter to Core and
CoreInternal to accurately represent this in the type system.

Suggested-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260525202921.124698-12-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

6 files changed, 10 insertions, 7 deletions

diff --git a/drivers/cpufreq/rcpufreq_dt.rs b/drivers/cpufreq/rcpufreq_dt.rs
index b7eeb2730eb0..5e0b224f6699 100644
--- a/drivers/cpufreq/rcpufreq_dt.rs
+++ b/drivers/cpufreq/rcpufreq_dt.rs
@@ -205,7 +205,7 @@ impl platform::Driver for CPUFreqDTDriver {
     const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE);
 
     fn probe(
-        pdev: &platform::Device<Core>,
+        pdev: &platform::Device<Core<'_>>,
         _id_info: Option<&Self::IdInfo>,
     ) -> impl PinInit<Self, Error> {
         cpufreq::Registration::<CPUFreqDTDriver>::new_foreign_owned(pdev.as_ref())?;
diff --git a/drivers/gpu/drm/nova/driver.rs b/drivers/gpu/drm/nova/driver.rs
index 08136ec0bccb..7605348af994 100644
--- a/drivers/gpu/drm/nova/driver.rs
+++ b/drivers/gpu/drm/nova/driver.rs
@@ -54,7 +54,10 @@ impl auxiliary::Driver for NovaDriver {
     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> {
+    fn probe(
+        adev: &auxiliary::Device<Core<'_>>,
+        _info: &Self::IdInfo,
+    ) -> impl PinInit<Self, Error> {
         let data = try_pin_init!(NovaData { adev: adev.into() });
 
         let drm = drm::Device::<Self>::new(adev.as_ref(), data)?;
diff --git a/drivers/gpu/drm/tyr/driver.rs b/drivers/gpu/drm/tyr/driver.rs
index c81bf217743d..001727f44fc8 100644
--- a/drivers/gpu/drm/tyr/driver.rs
+++ b/drivers/gpu/drm/tyr/driver.rs
@@ -95,7 +95,7 @@ impl platform::Driver for TyrPlatformDriverData {
     const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE);
 
     fn probe(
-        pdev: &platform::Device<Core>,
+        pdev: &platform::Device<Core<'_>>,
         _info: Option<&Self::IdInfo>,
     ) -> impl PinInit<Self, Error> {
         let core_clk = Clk::get(pdev.as_ref(), Some(c"core"))?;
diff --git a/drivers/gpu/nova-core/driver.rs b/drivers/gpu/nova-core/driver.rs
index 699e27046c93..13c5ff15e87f 100644
--- a/drivers/gpu/nova-core/driver.rs
+++ b/drivers/gpu/nova-core/driver.rs
@@ -77,7 +77,7 @@ impl pci::Driver for NovaCore {
     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> {
+    fn probe(pdev: &pci::Device<Core<'_>>, _info: &Self::IdInfo) -> impl PinInit<Self, Error> {
         pin_init::pin_init_scope(move || {
             dev_dbg!(pdev, "Probe Nova Core GPU driver.\n");
 
@@ -109,7 +109,7 @@ impl pci::Driver for NovaCore {
         })
     }
 
-    fn unbind(pdev: &pci::Device<Core>, this: Pin<&Self>) {
+    fn unbind(pdev: &pci::Device<Core<'_>>, this: Pin<&Self>) {
         this.gpu.unbind(pdev.as_ref());
     }
 }
diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs
index 0f6fe9a1b955..4ffb506342a9 100644
--- a/drivers/gpu/nova-core/gpu.rs
+++ b/drivers/gpu/nova-core/gpu.rs
@@ -278,7 +278,7 @@ impl Gpu {
     /// Called when the corresponding [`Device`](device::Device) is unbound.
     ///
     /// Note: This method must only be called from `Driver::unbind`.
-    pub(crate) fn unbind(&self, dev: &device::Device<device::Core>) {
+    pub(crate) fn unbind(&self, dev: &device::Device<device::Core<'_>>) {
         kernel::warn_on!(self
             .bar
             .access(dev)
diff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs
index 07795910a0b5..df83a4a9a507 100644
--- a/drivers/pwm/pwm_th1520.rs
+++ b/drivers/pwm/pwm_th1520.rs
@@ -320,7 +320,7 @@ impl platform::Driver for Th1520PwmPlatformDriver {
     const OF_ID_TABLE: Option<of::IdTable<Self::IdInfo>> = Some(&OF_TABLE);
 
     fn probe(
-        pdev: &platform::Device<Core>,
+        pdev: &platform::Device<Core<'_>>,
         _id_info: Option<&Self::IdInfo>,
     ) -> impl PinInit<Self, Error> {
         let dev = pdev.as_ref();