Wedson Almeida Filho 76e2c2d9a2 rust: error: add From implementations for Error ... Add a set of `From` implementations for the `Error` kernel type. These implementations allow to easily convert from standard Rust error types to the usual kernel errors based on one of the `E*` integer codes. On top of that, the question mark Rust operator (`?`) implicitly performs a conversion on the error value using the `From` trait when propagating. Thus it is extra convenient to use. For instance, a kernel function that needs to convert a `i64` into a `i32` and to bubble up the error as a kernel error may write: fn f(x: i64) -> Result<...> { ... let y = i32::try_from(x)?; ... } which will transform the `TryFromIntError` into an `Err(EINVAL)`. Co-developed-by: Adam Bratschi-Kaye <ark.email@gmail.com> Signed-off-by: Adam Bratschi-Kaye <ark.email@gmail.com> Co-developed-by: Nándor István Krácser <bonifaido@gmail.com> Signed-off-by: Nándor István Krácser <bonifaido@gmail.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com> Reviewed-by: Finn Behrens <me@kloenk.dev> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>		2022-12-04 01:59:15 +01:00
..
alloc	rust: adapt alloc crate to the kernel	2022-09-28 08:57:01 +02:00
bindings	rust: add bindings crate	2022-09-28 08:58:00 +02:00
kernel	rust: error: add From implementations for Error	2022-12-04 01:59:15 +01:00
macros	rust: macros: take string literals in module!	2022-12-04 01:59:15 +01:00
.gitignore	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00
bindgen_parameters	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00
compiler_builtins.rs	rust: add compiler_builtins crate	2022-09-28 08:58:00 +02:00
exports.c	rust: export generated symbols	2022-09-28 08:59:52 +02:00
helpers.c	rust: add C helpers	2022-09-28 08:56:43 +02:00
Makefile	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00