From 4b0c68bd0d8b0e23ab1763d4a6632720dd3f1a83 Mon Sep 17 00:00:00 2001 From: Finn Behrens Date: Thu, 10 Nov 2022 17:41:20 +0100 Subject: rust: error: declare errors using macro Add a macro to declare errors, which simplifies the work needed to add each one, avoids repetition of the code and makes it easier to change the way they are declared. Signed-off-by: Finn Behrens Reviewed-by: Gary Guo [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda --- rust/kernel/error.rs | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'rust') diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs index 466b2a8fe569..b843f3445483 100644 --- a/rust/kernel/error.rs +++ b/rust/kernel/error.rs @@ -8,8 +8,16 @@ use alloc::collections::TryReserveError; /// Contains the C-compatible error codes. pub mod code { - /// Out of memory. - pub const ENOMEM: super::Error = super::Error(-(crate::bindings::ENOMEM as i32)); + macro_rules! declare_err { + ($err:tt $(,)? $($doc:expr),+) => { + $( + #[doc = $doc] + )* + pub const $err: super::Error = super::Error(-(crate::bindings::$err as i32)); + }; + } + + declare_err!(ENOMEM, "Out of memory."); } /// Generic integer kernel error. -- cgit v1.2.3