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Fix a trivial spelling error in the `rust/kernel/str.rs` file.
Fixes: 247b365dc8dc ("rust: add `kernel` crate")
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://github.com/Rust-for-Linux/linux/issues/978
Signed-off-by: Patrick Blass <patrickblass@mailbox.org>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
[Reworded slightly]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add the `fmt!` macro, which is a convenience alias for the Rust
`core::format_args!` macro.
For instance, it may be used to create a `CString`:
CString::try_from_fmt(fmt!("{}{}", "abc", 42))?
Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add the `CString` type, which is an owned string that is guaranteed
to have exactly one `NUL` byte at the end, i.e. the owned equivalent
to `CStr` introduced earlier.
It is used for interoperability with kernel APIs that take C strings.
In order to do so, implement the `RawFormatter::new()` constructor
and the `RawFormatter::bytes_written()` method as well.
Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add the `Formatter` type, which leverages `RawFormatter`,
but fails if callers attempt to write more than will fit
in the buffer.
In order to so, implement the `RawFormatter::from_buffer()`
constructor as well.
Co-developed-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Signed-off-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add `c_str!`, which is a convenience macro that creates a new `CStr`
from a string literal.
It is designed to be similar to a `str` in usage, and it is usable
in const contexts, for instance:
const X: &CStr = c_str!("Example");
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add unit tests for `CStr::from_bytes_with_nul()` and
`CStr::from_bytes_with_nul_unchecked()`.
These serve as an example of the first unit tests for Rust code
(i.e. different from documentation tests).
Signed-off-by: Milan Landaverde <milan@mdaverde.com>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Implement `Debug`, `Display`, `Deref` (into `BStr`), `AsRef<BStr>`
and a set of `Index<...>` traits.
This makes it `CStr` more convenient to use (and closer to `str`).
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Morgan Bartlett <mjmouse9999@gmail.com>
Signed-off-by: Morgan Bartlett <mjmouse9999@gmail.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add the `CStr` type, which is a borrowed string that is guaranteed
to have exactly one `NUL` byte, which is at the end.
It is used for interoperability with kernel APIs that take C strings.
Add it to the prelude too.
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Milan Landaverde <milan@mdaverde.com>
Signed-off-by: Milan Landaverde <milan@mdaverde.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add the `b_str!` macro, which creates a new `BStr` from
a string literal.
It is usable in const contexts, for instance:
const X: &BStr = b_str!("Example");
Signed-off-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Add the `BStr` type, which is a byte string without UTF-8
validity guarantee.
It is simply an alias to `[u8]`, but has a more evident
semantical meaning.
Signed-off-by: Gary Guo <gary@garyguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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The `kernel` crate currently includes all the abstractions that wrap
kernel features written in C.
These abstractions call the C side of the kernel via the generated
bindings with the `bindgen` tool. Modules developed in Rust should
never call the bindings themselves.
In the future, as the abstractions grow in number, we may need
to split this crate into several, possibly following a similar
subdivision in subsystems as the kernel itself and/or moving
the code to the actual subsystems.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Geoffrey Thomas <geofft@ldpreload.com>
Signed-off-by: Geoffrey Thomas <geofft@ldpreload.com>
Co-developed-by: Finn Behrens <me@kloenk.de>
Signed-off-by: Finn Behrens <me@kloenk.de>
Co-developed-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Signed-off-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Co-developed-by: Sven Van Asbroeck <thesven73@gmail.com>
Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com>
Co-developed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Gary Guo <gary@garyguo.net>
Co-developed-by: Boris-Chengbiao Zhou <bobo1239@web.de>
Signed-off-by: Boris-Chengbiao Zhou <bobo1239@web.de>
Co-developed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Co-developed-by: Fox Chen <foxhlchen@gmail.com>
Signed-off-by: Fox Chen <foxhlchen@gmail.com>
Co-developed-by: Viktor Garske <viktor@v-gar.de>
Signed-off-by: Viktor Garske <viktor@v-gar.de>
Co-developed-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl>
Signed-off-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl>
Co-developed-by: Léo Lanteri Thauvin <leseulartichaut@gmail.com>
Signed-off-by: Léo Lanteri Thauvin <leseulartichaut@gmail.com>
Co-developed-by: Niklas Mohrin <dev@niklasmohrin.de>
Signed-off-by: Niklas Mohrin <dev@niklasmohrin.de>
Co-developed-by: Milan Landaverde <milan@mdaverde.com>
Signed-off-by: Milan Landaverde <milan@mdaverde.com>
Co-developed-by: Morgan Bartlett <mjmouse9999@gmail.com>
Signed-off-by: Morgan Bartlett <mjmouse9999@gmail.com>
Co-developed-by: Maciej Falkowski <m.falkowski@samsung.com>
Signed-off-by: Maciej Falkowski <m.falkowski@samsung.com>
Co-developed-by: Nándor István Krácser <bonifaido@gmail.com>
Signed-off-by: Nándor István Krácser <bonifaido@gmail.com>
Co-developed-by: David Gow <davidgow@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Co-developed-by: John Baublitz <john.m.baublitz@gmail.com>
Signed-off-by: John Baublitz <john.m.baublitz@gmail.com>
Co-developed-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Signed-off-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Co-developed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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