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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>
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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>
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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>
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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>
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