Clean up references to `kernel::str::CStr`.
Signed-off-by: Tamir Duberstein tamird@gmail.com --- drivers/gpu/drm/drm_panic_qr.rs | 3 ++- drivers/gpu/nova-core/firmware.rs | 2 +- drivers/net/phy/ax88796b_rust.rs | 1 + drivers/net/phy/qt2025.rs | 1 + rust/kernel/device.rs | 3 +-- rust/kernel/driver.rs | 4 ++-- rust/kernel/error.rs | 6 ++---- rust/kernel/faux.rs | 5 ++++- rust/kernel/firmware.rs | 15 ++++----------- rust/kernel/kunit.rs | 6 +++--- rust/kernel/lib.rs | 2 +- rust/kernel/miscdevice.rs | 3 +-- rust/kernel/net/phy.rs | 4 +++- rust/kernel/of.rs | 3 ++- rust/kernel/pci.rs | 2 +- rust/kernel/platform.rs | 2 +- rust/kernel/prelude.rs | 5 +---- rust/kernel/str.rs | 22 ++++++++++------------ rust/kernel/sync/condvar.rs | 4 ++-- rust/kernel/sync/lock.rs | 4 ++-- rust/kernel/sync/lock/global.rs | 5 +++-- rust/kernel/sync/poll.rs | 1 + rust/kernel/workqueue.rs | 1 + rust/macros/module.rs | 2 +- 24 files changed, 51 insertions(+), 55 deletions(-)
diff --git a/drivers/gpu/drm/drm_panic_qr.rs b/drivers/gpu/drm/drm_panic_qr.rs index d8192a9bef63..ba63238d352f 100644 --- a/drivers/gpu/drm/drm_panic_qr.rs +++ b/drivers/gpu/drm/drm_panic_qr.rs @@ -27,7 +27,8 @@ //! * https://github.com/erwanvivien/fast_qr //! * https://github.com/bjguillot/qr
-use kernel::{prelude::*, str::CStr}; +use core::ffi::CStr; +use kernel::prelude::*;
#[derive(Debug, Clone, Copy, PartialEq, Eq, Ord, PartialOrd)] struct Version(usize); diff --git a/drivers/gpu/nova-core/firmware.rs b/drivers/gpu/nova-core/firmware.rs index 6e6361c59ca1..0af1f0df2fa5 100644 --- a/drivers/gpu/nova-core/firmware.rs +++ b/drivers/gpu/nova-core/firmware.rs @@ -30,7 +30,7 @@ const fn make_entry_chipset(self, chipset: &str) -> Self { }
pub(crate) const fn create( - module_name: &'static kernel::str::CStr, + module_name: &'static core::ffi::CStr, ) -> firmware::ModInfoBuilder<N> { let mut this = Self(firmware::ModInfoBuilder::new(module_name)); let mut i = 0; diff --git a/drivers/net/phy/ax88796b_rust.rs b/drivers/net/phy/ax88796b_rust.rs index 2d24628a4e58..68b8e30ae296 100644 --- a/drivers/net/phy/ax88796b_rust.rs +++ b/drivers/net/phy/ax88796b_rust.rs @@ -4,6 +4,7 @@ //! Rust Asix PHYs driver //! //! C version of this driver: [`drivers/net/phy/ax88796b.c`](./ax88796b.c) +use core::ffi::CStr; use kernel::{ net::phy::{self, reg::C22, DeviceId, Driver}, prelude::*, diff --git a/drivers/net/phy/qt2025.rs b/drivers/net/phy/qt2025.rs index 9ccc75f70219..78ce2866f2b6 100644 --- a/drivers/net/phy/qt2025.rs +++ b/drivers/net/phy/qt2025.rs @@ -9,6 +9,7 @@ //! //! The QT2025 PHY integrates an Intel 8051 micro-controller.
+use core::ffi::CStr; use kernel::error::code; use kernel::firmware::Firmware; use kernel::net::phy::{ diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs index 9074322c79e8..2cf5903f7dde 100644 --- a/rust/kernel/device.rs +++ b/rust/kernel/device.rs @@ -6,10 +6,9 @@
use crate::{ bindings, - str::CStr, types::{ARef, Opaque}, }; -use core::{fmt, ptr}; +use core::{ffi::CStr, fmt, ptr};
#[cfg(CONFIG_PRINTK)] use crate::str::CStrExt as _; diff --git a/rust/kernel/driver.rs b/rust/kernel/driver.rs index ec9166cedfa7..9926664d9ba2 100644 --- a/rust/kernel/driver.rs +++ b/rust/kernel/driver.rs @@ -6,8 +6,8 @@ //! register using the [`Registration`] class.
use crate::error::{Error, Result}; -use crate::{device, of, str::CStr, try_pin_init, types::Opaque, ThisModule}; -use core::pin::Pin; +use crate::{device, of, try_pin_init, types::Opaque, ThisModule}; +use core::{ffi::CStr, pin::Pin}; use pin_init::{pin_data, pinned_drop, PinInit};
/// The [`RegistrationOps`] trait serves as generic interface for subsystems (e.g., PCI, Platform, diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs index 933c048c04f1..b2b46d26f7b7 100644 --- a/rust/kernel/error.rs +++ b/rust/kernel/error.rs @@ -4,11 +4,9 @@ //! //! C header: [`include/uapi/asm-generic/errno-base.h`](srctree/include/uapi/asm-generic/errno-base.h)
-use crate::{ - alloc::{layout::LayoutError, AllocError}, - str::CStr, -}; +use crate::alloc::{layout::LayoutError, AllocError};
+use core::ffi::CStr; use core::fmt; use core::num::NonZeroI32; use core::num::TryFromIntError; diff --git a/rust/kernel/faux.rs b/rust/kernel/faux.rs index 8a50fcd4c9bb..d9e5cd265101 100644 --- a/rust/kernel/faux.rs +++ b/rust/kernel/faux.rs @@ -7,7 +7,10 @@ //! C header: [`include/linux/device/faux.h`]
use crate::{bindings, device, error::code::*, prelude::*}; -use core::ptr::{addr_of_mut, null, null_mut, NonNull}; +use core::{ + ffi::CStr, + ptr::{addr_of_mut, null, null_mut, NonNull}, +};
/// The registration of a faux device. /// diff --git a/rust/kernel/firmware.rs b/rust/kernel/firmware.rs index 09fd3a27bcf0..4ba5e5589d7b 100644 --- a/rust/kernel/firmware.rs +++ b/rust/kernel/firmware.rs @@ -4,15 +4,8 @@ //! //! C header: [`include/linux/firmware.h`](srctree/include/linux/firmware.h)
-use crate::{ - bindings, - device::Device, - error::Error, - error::Result, - ffi, - str::{CStr, CStrExt as _}, -}; -use core::ptr::NonNull; +use crate::{bindings, device::Device, error::Error, error::Result, ffi, str::CStrExt as _}; +use core::{ffi::CStr, ptr::NonNull};
/// # Invariants /// @@ -168,7 +161,7 @@ unsafe impl Sync for Firmware {} /// const DIR: &'static str = "vendor/chip/"; /// const FILES: [&'static str; 3] = [ "foo", "bar", "baz" ]; /// -/// const fn create(module_name: &'static kernel::str::CStr) -> firmware::ModInfoBuilder<N> { +/// const fn create(module_name: &'static core::ffi::CStr) -> firmware::ModInfoBuilder<N> { /// let mut builder = firmware::ModInfoBuilder::new(module_name); /// /// let mut i = 0; @@ -202,7 +195,7 @@ macro_rules! module_firmware { // this macro. Hence, we can neither use `expr` nor `ty`. ($($builder:tt)*) => { const _: () = { - const __MODULE_FIRMWARE_PREFIX: &'static $crate::str::CStr = if cfg!(MODULE) { + const __MODULE_FIRMWARE_PREFIX: &'static ::core::ffi::CStr = if cfg!(MODULE) { c"" } else { <LocalModule as $crate::ModuleMetadata>::NAME diff --git a/rust/kernel/kunit.rs b/rust/kernel/kunit.rs index 09148e982f48..83b48e2f8379 100644 --- a/rust/kernel/kunit.rs +++ b/rust/kernel/kunit.rs @@ -58,9 +58,9 @@ macro_rules! kunit_assert { break 'out; }
- static FILE: &'static $crate::str::CStr = $crate::c_str_avoid_literals!($file); + static FILE: &'static core::ffi::CStr = $crate::c_str_avoid_literals!($file); static LINE: i32 = core::line!() as i32 - $diff; - static CONDITION: &'static $crate::str::CStr = + static CONDITION: &'static core::ffi::CStr = $crate::c_str_avoid_literals!(stringify!($condition));
// SAFETY: FFI call without safety requirements. @@ -171,7 +171,7 @@ macro_rules! kunit_assert_eq { /// Use [`kunit_case_null`] to generate such a delimiter. #[doc(hidden)] pub const fn kunit_case( - name: &'static kernel::str::CStr, + name: &'static core::ffi::CStr, run_case: unsafe extern "C" fn(*mut kernel::bindings::kunit), ) -> kernel::bindings::kunit_case { kernel::bindings::kunit_case { diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs index ec48c818d512..d36b123c518b 100644 --- a/rust/kernel/lib.rs +++ b/rust/kernel/lib.rs @@ -152,7 +152,7 @@ fn init(module: &'static ThisModule) -> impl pin_init::PinInit<Self, error::Erro /// Metadata attached to a [`Module`] or [`InPlaceModule`]. pub trait ModuleMetadata { /// The name of the module as specified in the `module!` macro. - const NAME: &'static crate::str::CStr; + const NAME: &'static core::ffi::CStr; }
/// Equivalent to `THIS_MODULE` in the C API. diff --git a/rust/kernel/miscdevice.rs b/rust/kernel/miscdevice.rs index d684ec4ef4d0..47f718a9ceb5 100644 --- a/rust/kernel/miscdevice.rs +++ b/rust/kernel/miscdevice.rs @@ -16,10 +16,9 @@ fs::File, prelude::*, seq_file::SeqFile, - str::CStr, types::{ForeignOwnable, Opaque}, }; -use core::{marker::PhantomData, mem::MaybeUninit, pin::Pin}; +use core::{ffi::CStr, marker::PhantomData, mem::MaybeUninit, pin::Pin};
/// Options for creating a misc device. #[derive(Copy, Clone)] diff --git a/rust/kernel/net/phy.rs b/rust/kernel/net/phy.rs index 8129419a3931..72635af8f20e 100644 --- a/rust/kernel/net/phy.rs +++ b/rust/kernel/net/phy.rs @@ -7,7 +7,7 @@ //! C headers: [`include/linux/phy.h`](srctree/include/linux/phy.h).
use crate::{error::*, prelude::*, types::Opaque}; -use core::{marker::PhantomData, ptr::addr_of_mut}; +use core::{ffi::CStr, marker::PhantomData, ptr::addr_of_mut};
pub mod reg;
@@ -780,6 +780,7 @@ const fn as_int(&self) -> u32 { /// /// ``` /// # mod module_phy_driver_sample { +/// use core::ffi::CStr; /// use kernel::net::phy::{self, DeviceId}; /// use kernel::prelude::*; /// @@ -807,6 +808,7 @@ const fn as_int(&self) -> u32 { /// This expands to the following code: /// /// ```ignore +/// use core::ffi::CStr; /// use kernel::net::phy::{self, DeviceId}; /// use kernel::prelude::*; /// diff --git a/rust/kernel/of.rs b/rust/kernel/of.rs index 12ea65df46de..087ac8e05551 100644 --- a/rust/kernel/of.rs +++ b/rust/kernel/of.rs @@ -2,7 +2,8 @@
//! Device Tree / Open Firmware abstractions.
-use crate::{bindings, device_id::RawDeviceId, prelude::*}; +use crate::{bindings, device_id::RawDeviceId}; +use core::ffi::CStr;
/// IdTable type for OF drivers. pub type IdTable<T> = &'static dyn kernel::device_id::IdTable<DeviceId, T>; diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index 3aeb1250c27f..b639e6a1f590 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -13,11 +13,11 @@ error::{to_result, Result}, io::Io, io::IoRaw, - str::CStr, types::{ARef, ForeignOwnable, Opaque}, ThisModule, }; use core::{ + ffi::CStr, marker::PhantomData, ops::Deref, ptr::{addr_of_mut, NonNull}, diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs index 7163fc468b32..ba580a4e3416 100644 --- a/rust/kernel/platform.rs +++ b/rust/kernel/platform.rs @@ -9,12 +9,12 @@ error::{to_result, Result}, of, prelude::*, - str::CStr, types::{ARef, ForeignOwnable, Opaque}, ThisModule, };
use core::{ + ffi::CStr, marker::PhantomData, ops::Deref, ptr::{addr_of_mut, NonNull}, diff --git a/rust/kernel/prelude.rs b/rust/kernel/prelude.rs index 97e8bcf73669..5d55e274b41e 100644 --- a/rust/kernel/prelude.rs +++ b/rust/kernel/prelude.rs @@ -35,10 +35,7 @@
pub use super::error::{code::*, Error, Result};
-pub use super::{ - str::{CStr, CStrExt as _}, - ThisModule, -}; +pub use super::{str::CStrExt as _, ThisModule};
pub use super::init::InPlaceInit;
diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs index 0385d927fcd5..cf0402d1daac 100644 --- a/rust/kernel/str.rs +++ b/rust/kernel/str.rs @@ -3,6 +3,7 @@ //! String representations.
use crate::alloc::{flags::*, AllocError, KVec}; +use core::ffi::CStr; use core::fmt::{self, Write}; use core::ops::{Deref, DerefMut, Index};
@@ -175,8 +176,6 @@ macro_rules! b_str { }}; }
-pub use core::ffi::CStr; - /// Returns a C pointer to the string. // It is a free function rather than a method on an extension trait because: // @@ -267,7 +266,6 @@ impl fmt::Display for crate::fmt::Adapter<&CStr> { /// /// ``` /// # use kernel::prelude::fmt; - /// # use kernel::str::CStr; /// # use kernel::str::CString; /// let penguin = c"🐧"; /// let s = CString::try_from_fmt(fmt!("{}", penguin))?; @@ -377,8 +375,8 @@ fn as_ref(&self) -> &BStr { /// # Examples /// /// ``` +/// # use core::ffi::CStr; /// # use kernel::c_str_avoid_literals; -/// # use kernel::str::CStr; /// const MY_CSTR: &CStr = c_str_avoid_literals!(concat!(file!(), ":", line!(), ": My CStr!")); /// ``` #[macro_export] @@ -388,14 +386,14 @@ macro_rules! c_str_avoid_literals { // too limiting to macro authors, so we rely on the name as a hint instead. ($str:expr) => {{ const S: &'static str = concat!($str, "\0"); - const C: &'static $crate::str::CStr = - match $crate::str::CStr::from_bytes_with_nul(S.as_bytes()) { - Ok(v) => v, - Err(err) => { - let _: core::ffi::FromBytesWithNulError = err; - panic!("string contains interior NUL") - } - }; + const C: &'static core::ffi::CStr = match core::ffi::CStr::from_bytes_with_nul(S.as_bytes()) + { + Ok(v) => v, + Err(err) => { + let _: core::ffi::FromBytesWithNulError = err; + panic!("string contains interior NUL") + } + }; C }}; } diff --git a/rust/kernel/sync/condvar.rs b/rust/kernel/sync/condvar.rs index 0b6bc7f2878d..09bc35feb451 100644 --- a/rust/kernel/sync/condvar.rs +++ b/rust/kernel/sync/condvar.rs @@ -8,14 +8,14 @@ use super::{lock::Backend, lock::Guard, LockClassKey}; use crate::{ ffi::{c_int, c_long}, - str::{CStr, CStrExt as _}, + str::CStrExt as _, task::{ MAX_SCHEDULE_TIMEOUT, TASK_FREEZABLE, TASK_INTERRUPTIBLE, TASK_NORMAL, TASK_UNINTERRUPTIBLE, }, time::Jiffies, types::Opaque, }; -use core::{marker::PhantomPinned, pin::Pin, ptr}; +use core::{ffi::CStr, marker::PhantomPinned, pin::Pin, ptr}; use pin_init::{pin_data, pin_init, PinInit};
/// Creates a [`CondVar`] initialiser with the given name and a newly-created lock class. diff --git a/rust/kernel/sync/lock.rs b/rust/kernel/sync/lock.rs index a777a22976e0..21deff0bb13b 100644 --- a/rust/kernel/sync/lock.rs +++ b/rust/kernel/sync/lock.rs @@ -7,10 +7,10 @@
use super::LockClassKey; use crate::{ - str::{CStr, CStrExt as _}, + str::CStrExt as _, types::{NotThreadSafe, Opaque, ScopeGuard}, }; -use core::{cell::UnsafeCell, marker::PhantomPinned, pin::Pin}; +use core::{cell::UnsafeCell, ffi::CStr, marker::PhantomPinned, pin::Pin}; use pin_init::{pin_data, pin_init, PinInit};
pub mod mutex; diff --git a/rust/kernel/sync/lock/global.rs b/rust/kernel/sync/lock/global.rs index 0ca23b12427c..bfeaa21ab101 100644 --- a/rust/kernel/sync/lock/global.rs +++ b/rust/kernel/sync/lock/global.rs @@ -5,13 +5,14 @@ //! Support for defining statics containing locks.
use crate::{ - str::{CStr, CStrExt as _}, + str::CStrExt as _, sync::lock::{Backend, Guard, Lock}, sync::{LockClassKey, LockedBy}, types::Opaque, }; use core::{ cell::UnsafeCell, + ffi::CStr, marker::{PhantomData, PhantomPinned}, pin::Pin, }; @@ -267,7 +268,7 @@ macro_rules! global_lock { $pub enum $name {}
impl $crate::sync::lock::GlobalLockBackend for $name { - const NAME: &'static $crate::str::CStr = + const NAME: &'static core::ffi::CStr = $crate::c_str_avoid_literals!(::core::stringify!($name)); type Item = $valuety; type Backend = $crate::global_lock_inner!(backend $kind); diff --git a/rust/kernel/sync/poll.rs b/rust/kernel/sync/poll.rs index d7e6e59e124b..bf2fb24d04ea 100644 --- a/rust/kernel/sync/poll.rs +++ b/rust/kernel/sync/poll.rs @@ -11,6 +11,7 @@ sync::{CondVar, LockClassKey}, types::Opaque, }; +use core::ffi::CStr; use core::ops::Deref;
/// Creates a [`PollCondVar`] initialiser with the given name and a newly-created lock class. diff --git a/rust/kernel/workqueue.rs b/rust/kernel/workqueue.rs index f98bd02b838f..c64769ef5b90 100644 --- a/rust/kernel/workqueue.rs +++ b/rust/kernel/workqueue.rs @@ -135,6 +135,7 @@
use crate::alloc::{AllocError, Flags}; use crate::{prelude::*, sync::Arc, sync::LockClassKey, types::Opaque}; +use core::ffi::CStr; use core::marker::PhantomData;
/// Creates a [`Work`] initialiser with the given name and a newly-created lock class. diff --git a/rust/macros/module.rs b/rust/macros/module.rs index 7b71d6d99d5c..5246fed82e63 100644 --- a/rust/macros/module.rs +++ b/rust/macros/module.rs @@ -232,7 +232,7 @@ pub(crate) fn module(ts: TokenStream) -> TokenStream { type LocalModule = {type_};
impl kernel::ModuleMetadata for {type_} {{ - const NAME: &'static kernel::str::CStr = c"{name}"; + const NAME: &'static core::ffi::CStr = c"{name}"; }}
// Double nested modules, since then nobody can access the public items inside.