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rust: prelude: add error::code::* constant items

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It is convenient to have all the `Error` constant items (such as
`EINVAL`) available as-is everywhere (i.e. for code using the kernel
prelude such as kernel modules).

Therefore, add all of them to the prelude.

For instance, this allows to write `Err(EINVAL)` to create
a kernel `Result`:

    fn f() -> Result<...> {
        ...
        Err(EINVAL)
    }

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>
This commit is contained in:
Wedson Almeida Filho 2022-11-10 17:41:23 +01:00 committed by Miguel Ojeda
parent 76e2c2d9a2
commit 25d176a4fa
1 changed files with 1 additions and 1 deletions
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2
rust/kernel/prelude.rs
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@ -19,6 +19,6 @@
pub use super::{pr_alert, pr_crit, pr_debug, pr_emerg, pr_err, pr_info, pr_notice, pr_warn};
pub use super::error::{Error, Result};
pub use super::error::{code::*, Error, Result};
pub use super::ThisModule;