linux.git/rust/kernel/device.rs, branch v6.13-rc4 Linux kernel source tree rust: add `dev_*` print macros. 2024-11-05T04:33:46+00:00 Wedson Almeida Filho wedsonaf@google.com 2024-10-22T21:31:45+00:00 5c7ca6fa603fc669253b166649ba635a38a9d7ee Implement `dev_*` print macros for `device::Device`. They behave like the macros with the same names in C, i.e., they print messages to the kernel ring buffer with the given level, prefixing the messages with corresponding device information. Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20241022213221.2383-9-dakr@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Implement `dev_*` print macros for `device::Device`.

They behave like the macros with the same names in C, i.e., they print
messages to the kernel ring buffer with the given level, prefixing the
messages with corresponding device information.

Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20241022213221.2383-9-dakr@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rust: device: change the from_raw() function 2024-10-03T11:54:48+00:00 Guilherme Giacomo Simoes trintaeoitogc@gmail.com 2024-10-01T20:56:03+00:00 cc4332afb5631b0e9d2ce5699b7f4b7caf743526 The function Device::from_raw() increments a refcount by a call to bindings::get_device(ptr). This can be confused because usually from_raw() functions don't increment a refcount. Hence, rename Device::from_raw() to avoid confuion with other "from_raw" semantics. The new name of function should be "get_device" to be consistent with the function get_device() already exist in .c files. This function body also changed, because the `into()` will convert the `&'a Device` into `ARef<Device>` and also call `inc_ref` from the `AlwaysRefCounted` trait implemented for Device. Signed-off-by: Guilherme Giacomo Simoes <trintaeoitogc@gmail.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Closes: https://github.com/Rust-for-Linux/linux/issues/1088 Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Link: https://lore.kernel.org/r/20241001205603.106278-1-trintaeoitogc@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The function Device::from_raw() increments a refcount by a call to
bindings::get_device(ptr). This can be confused because usually
from_raw() functions don't increment a refcount.
Hence, rename Device::from_raw() to avoid confuion with other "from_raw"
semantics.

The new name of function should be "get_device" to be consistent with
the function get_device() already exist in .c files.

This function body also changed, because the `into()` will convert the
`&'a Device` into `ARef<Device>` and also call `inc_ref` from the
`AlwaysRefCounted` trait implemented for Device.

Signed-off-by: Guilherme Giacomo Simoes <trintaeoitogc@gmail.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Closes: https://github.com/Rust-for-Linux/linux/issues/1088
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20241001205603.106278-1-trintaeoitogc@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
device: rust: improve safety comments 2024-06-20T14:14:58+00:00 Danilo Krummrich dakr@redhat.com 2024-06-19T13:39:17+00:00 4ead6c37b04aa35943ea270f09db18ebb38e63ff Improve the wording of safety comments to be more explicit about what exactly is guaranteed to be valid. Suggested-by: Benno Lossin <benno.lossin@proton.me> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://lore.kernel.org/r/20240619133949.64638-1-dakr@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Improve the wording of safety comments to be more explicit about what
exactly is guaranteed to be valid.

Suggested-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://lore.kernel.org/r/20240619133949.64638-1-dakr@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rust: add abstraction for struct device 2024-06-18T16:45:06+00:00 Danilo Krummrich dakr@redhat.com 2024-06-18T15:48:34+00:00 a674fefd17324fc467f043568e738b80ca22f2b4 Add an (always) reference-counted abstraction for a generic C `struct device`. This abstraction encapsulates existing `struct device` instances and manages its reference count. Subsystems may use this abstraction as a base to abstract subsystem specific device instances based on a generic `struct device`, such as `struct pci_dev`. Co-developed-by: Wedson Almeida Filho <wedsonaf@gmail.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://lore.kernel.org/r/20240618154841.6716-2-dakr@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add an (always) reference-counted abstraction for a generic C `struct
device`. This abstraction encapsulates existing `struct device` instances
and manages its reference count.

Subsystems may use this abstraction as a base to abstract subsystem
specific device instances based on a generic `struct device`, such as
`struct pci_dev`.

Co-developed-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://lore.kernel.org/r/20240618154841.6716-2-dakr@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>