Merge tag 'driver-core-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

Pull driver core updates from Danilo Krummrich:
 "Bus:

   - Ensure bus->match() is consistently called with the device lock
     held

   - Improve type safety of bus_find_device_by_acpi_dev()

  Devtmpfs:

   - Parse 'devtmpfs.mount=' boot parameter with kstrtoint() instead of
     simple_strtoul()

   - Avoid sparse warning by making devtmpfs_context_ops static

  IOMMU:

   - Do not register the qcom_smmu_tbu_driver in arm_smmu_device_probe()

  MAINTAINERS:

   - Add the new driver-core mailing list (driver-core@lists.linux.dev)
     to all relevant entries

   - Add missing tree location for "FIRMWARE LOADER (request_firmware)"

   - Add driver-model documentation to the "DRIVER CORE" entry

   - Add missing driver-core maintainers to the "AUXILIARY BUS" entry

  Misc:

   - Change return type of attribute_container_register() to void; it
     has always been infallible

   - Do not export sysfs_change_owner(), sysfs_file_change_owner() and
     device_change_owner()

   - Move devres_for_each_res() from the public devres header to
     drivers/base/base.h

   - Do not use a static struct device for the faux bus; allocate it
     dynamically

  Revocable:

   - Patches for the revocable synchronization primitive have been
     scheduled for v7.0-rc1, but have been reverted as they need some
     more refinement

  Rust:

   - Device:
      - Support dev_printk on all device types, not just the core Device
        struct; remove now-redundant .as_ref() calls in dev_* print
        calls

   - Devres:
      - Introduce an internal reference count in Devres<T> to avoid a
        deadlock condition in case of (indirect) nesting

   - DMA:
      - Allow drivers to tune the maximum DMA segment size via
        dma_set_max_seg_size()

   - I/O:
      - Introduce the concept of generic I/O backends to handle
        different kinds of device shared memory through a common
        interface.

        This enables higher-level concepts such as register
        abstractions, I/O slices, and field projections to be built
        generically on top.

        In a first step, introduce the Io, IoCapable<T>, and IoKnownSize
        trait hierarchy for sharing a common interface supporting offset
        validation and bound-checking logic between I/O backends.

      - Refactor MMIO to use the common I/O backend infrastructure

   - Misc:
      - Add __rust_helper annotations to C helpers for inlining into
        Rust code

      - Use "kernel vertical" style for imports

      - Replace kernel::c_str! with C string literals

      - Update ARef imports to use sync::aref

      - Use pin_init::zeroed() for struct auxiliary_device_id and
        debugfs file_operations initialization

      - Use LKMM atomic types in debugfs doc-tests

      - Various minor comment and documentation fixes

   - PCI:
      - Implement PCI configuration space accessors using the common I/O
        backend infrastructure

      - Document pci::Bar device endianness assumptions

   - SoC:
      - Abstractions for struct soc_device and struct soc_device_attribute

      - Sample driver for soc::Device"

* tag 'driver-core-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (79 commits)
  rust: devres: fix race condition due to nesting
  rust: dma: add missing __rust_helper annotations
  samples: rust: pci: Remove some additional `.as_ref()` for `dev_*` print
  Revert "revocable: Revocable resource management"
  Revert "revocable: Add Kunit test cases"
  Revert "selftests: revocable: Add kselftest cases"
  driver core: remove device_change_owner() export
  sysfs: remove exports of sysfs_*change_owner()
  driver core: disable revocable code from build
  revocable: Add KUnit test for concurrent access
  revocable: fix SRCU index corruption by requiring caller-provided storage
  revocable: Add KUnit test for provider lifetime races
  revocable: Fix races in revocable_alloc() using RCU
  driver core: fix inverted "locked" suffix of driver_match_device()
  rust: io: move MIN_SIZE and io_addr_assert to IoKnownSize
  rust: pci: re-export ConfigSpace
  rust: dma: allow drivers to tune max segment size
  gpu: tyr: remove redundant `.as_ref()` for `dev_*` print
  rust: auxiliary: use `pin_init::zeroed()` for device ID
  rust: debugfs: use pin_init::zeroed() for file_operations
  ...

4 files changed, 80 insertions, 41 deletions

diff --git a/rust/kernel/debugfs/callback_adapters.rs b/rust/kernel/debugfs/callback_adapters.rs
index a260d8dee051..dee7d021e18c 100644
--- a/rust/kernel/debugfs/callback_adapters.rs
+++ b/rust/kernel/debugfs/callback_adapters.rs
@@ -4,12 +4,21 @@
 //! Adapters which allow the user to supply a write or read implementation as a value rather
 //! than a trait implementation. If provided, it will override the trait implementation.
 
-use super::{Reader, Writer};
-use crate::fmt;
-use crate::prelude::*;
-use crate::uaccess::UserSliceReader;
-use core::marker::PhantomData;
-use core::ops::Deref;
+use super::{
+    Reader,
+    Writer, //
+};
+
+use crate::{
+    fmt,
+    prelude::*,
+    uaccess::UserSliceReader, //
+};
+
+use core::{
+    marker::PhantomData,
+    ops::Deref, //
+};
 
 /// # Safety
 ///
diff --git a/rust/kernel/debugfs/entry.rs b/rust/kernel/debugfs/entry.rs
index a30bf8f29679..46aad64896ec 100644
--- a/rust/kernel/debugfs/entry.rs
+++ b/rust/kernel/debugfs/entry.rs
@@ -1,10 +1,16 @@
 // SPDX-License-Identifier: GPL-2.0
 // Copyright (C) 2025 Google LLC.
 
-use crate::debugfs::file_ops::FileOps;
-use crate::ffi::c_void;
-use crate::str::{CStr, CStrExt as _};
-use crate::sync::Arc;
+use crate::{
+    debugfs::file_ops::FileOps,
+    prelude::*,
+    str::{
+        CStr,
+        CStrExt as _, //
+    },
+    sync::Arc,
+};
+
 use core::marker::PhantomData;
 
 /// Owning handle to a DebugFS entry.
diff --git a/rust/kernel/debugfs/file_ops.rs b/rust/kernel/debugfs/file_ops.rs
index 8a0442d6dd7a..f15908f71c4a 100644
--- a/rust/kernel/debugfs/file_ops.rs
+++ b/rust/kernel/debugfs/file_ops.rs
@@ -1,14 +1,23 @@
 // SPDX-License-Identifier: GPL-2.0
 // Copyright (C) 2025 Google LLC.
 
-use super::{BinaryReader, BinaryWriter, Reader, Writer};
-use crate::debugfs::callback_adapters::Adapter;
-use crate::fmt;
-use crate::fs::file;
-use crate::prelude::*;
-use crate::seq_file::SeqFile;
-use crate::seq_print;
-use crate::uaccess::UserSlice;
+use super::{
+    BinaryReader,
+    BinaryWriter,
+    Reader,
+    Writer, //
+};
+
+use crate::{
+    debugfs::callback_adapters::Adapter,
+    fmt,
+    fs::file,
+    prelude::*,
+    seq_file::SeqFile,
+    seq_print,
+    uaccess::UserSlice, //
+};
+
 use core::marker::PhantomData;
 
 #[cfg(CONFIG_DEBUG_FS)]
@@ -126,8 +135,7 @@ impl<T: Writer + Sync> ReadFile<T> for T {
             llseek: Some(bindings::seq_lseek),
             release: Some(bindings::single_release),
             open: Some(writer_open::<Self>),
-            // SAFETY: `file_operations` supports zeroes in all fields.
-            ..unsafe { core::mem::zeroed() }
+            ..pin_init::zeroed()
         };
         // SAFETY: `operations` is all stock `seq_file` implementations except for `writer_open`.
         // `open`'s only requirement beyond what is provided to all open functions is that the
@@ -179,8 +187,7 @@ impl<T: Writer + Reader + Sync> ReadWriteFile<T> for T {
             write: Some(write::<T>),
             llseek: Some(bindings::seq_lseek),
             release: Some(bindings::single_release),
-            // SAFETY: `file_operations` supports zeroes in all fields.
-            ..unsafe { core::mem::zeroed() }
+            ..pin_init::zeroed()
         };
         // SAFETY: `operations` is all stock `seq_file` implementations except for `writer_open`
         // and `write`.
@@ -235,8 +242,7 @@ impl<T: Reader + Sync> WriteFile<T> for T {
             open: Some(write_only_open),
             write: Some(write_only_write::<T>),
             llseek: Some(bindings::noop_llseek),
-            // SAFETY: `file_operations` supports zeroes in all fields.
-            ..unsafe { core::mem::zeroed() }
+            ..pin_init::zeroed()
         };
         // SAFETY:
         // * `write_only_open` populates the file private data with the inode private data
@@ -288,8 +294,7 @@ impl<T: BinaryWriter + Sync> BinaryReadFile<T> for T {
             read: Some(blob_read::<T>),
             llseek: Some(bindings::default_llseek),
             open: Some(bindings::simple_open),
-            // SAFETY: `file_operations` supports zeroes in all fields.
-            ..unsafe { core::mem::zeroed() }
+            ..pin_init::zeroed()
         };
 
         // SAFETY:
@@ -343,8 +348,7 @@ impl<T: BinaryReader + Sync> BinaryWriteFile<T> for T {
             write: Some(blob_write::<T>),
             llseek: Some(bindings::default_llseek),
             open: Some(bindings::simple_open),
-            // SAFETY: `file_operations` supports zeroes in all fields.
-            ..unsafe { core::mem::zeroed() }
+            ..pin_init::zeroed()
         };
 
         // SAFETY:
@@ -369,8 +373,7 @@ impl<T: BinaryWriter + BinaryReader + Sync> BinaryReadWriteFile<T> for T {
             write: Some(blob_write::<T>),
             llseek: Some(bindings::default_llseek),
             open: Some(bindings::simple_open),
-            // SAFETY: `file_operations` supports zeroes in all fields.
-            ..unsafe { core::mem::zeroed() }
+            ..pin_init::zeroed()
         };
 
         // SAFETY:
diff --git a/rust/kernel/debugfs/traits.rs b/rust/kernel/debugfs/traits.rs
index 3eee60463fd5..8c39524b6a99 100644
--- a/rust/kernel/debugfs/traits.rs
+++ b/rust/kernel/debugfs/traits.rs
@@ -3,17 +3,38 @@
 
 //! Traits for rendering or updating values exported to DebugFS.
 
-use crate::alloc::Allocator;
-use crate::fmt;
-use crate::fs::file;
-use crate::prelude::*;
-use crate::sync::atomic::{Atomic, AtomicBasicOps, AtomicType, Relaxed};
-use crate::sync::Arc;
-use crate::sync::Mutex;
-use crate::transmute::{AsBytes, FromBytes};
-use crate::uaccess::{UserSliceReader, UserSliceWriter};
-use core::ops::{Deref, DerefMut};
-use core::str::FromStr;
+use crate::{
+    alloc::Allocator,
+    fmt,
+    fs::file,
+    prelude::*,
+    sync::{
+        atomic::{
+            Atomic,
+            AtomicBasicOps,
+            AtomicType,
+            Relaxed, //
+        },
+        Arc,
+        Mutex, //
+    },
+    transmute::{
+        AsBytes,
+        FromBytes, //
+    },
+    uaccess::{
+        UserSliceReader,
+        UserSliceWriter, //
+    },
+};
+
+use core::{
+    ops::{
+        Deref,
+        DerefMut, //
+    },
+    str::FromStr,
+};
 
 /// A trait for types that can be written into a string.
 ///