linux-kernel - [PATCH v1 14/28] rust: str: add `BStr` type

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Message-Id: <20221110164152.26136-15-ojeda@kernel.org>
Date:   Thu, 10 Nov 2022 17:41:26 +0100
From:   Miguel Ojeda <ojeda@...nel.org>
To:     Miguel Ojeda <ojeda@...nel.org>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>
Cc:     rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...ts.linux.dev
Subject: [PATCH v1 14/28] rust: str: add `BStr` type

From: Gary Guo <gary@...yguo.net>

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@...yguo.net>
[Reworded, adapted for upstream and applied latest changes]
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
 rust/kernel/str.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs
index e45ff220ae50..3aa1a0cb9bf8 100644
--- a/rust/kernel/str.rs
+++ b/rust/kernel/str.rs
@@ -4,6 +4,11 @@
 
 use core::fmt;
 
+/// Byte string without UTF-8 validity guarantee.
+///
+/// `BStr` is simply an alias to `[u8]`, but has a more evident semantical meaning.
+pub type BStr = [u8];
+
 /// Allows formatting of [`fmt::Arguments`] into a raw buffer.
 ///
 /// It does not fail if callers write past the end of the buffer so that they can calculate the
-- 
2.38.1