linux-kernel - [PATCH 5/7] rust: init: add `..Zeroable::zeroed()` syntax for zeroing all missing fields

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Message-ID: <20230703115814.2294010-1-aliceryhl@google.com>
Date:   Mon,  3 Jul 2023 11:58:14 +0000
From:   Alice Ryhl <aliceryhl@...gle.com>
To:     benno.lossin@...ton.me
Cc:     alex.gaynor@...il.com, aliceryhl@...gle.com,
        bjorn3_gh@...tonmail.com, boqun.feng@...il.com, gary@...yguo.net,
        lina@...hilina.net, linux-kernel@...r.kernel.org, nmi@...aspace.dk,
        ojeda@...nel.org, patches@...ts.linux.dev,
        rust-for-linux@...r.kernel.org, wedsonaf@...il.com
Subject: [PATCH 5/7] rust: init: add `..Zeroable::zeroed()` syntax for zeroing
 all missing fields

Benno Lossin <benno.lossin@...ton.me> writes:
> Add the struct update syntax to the init macros, but only for
> `..Zeroable::zeroed()`. Adding this at the end of the struct initializer
> allows one to omit fields from the initializer, these fields will be
> initialized with 0x00 set to every byte. Only types that implement the
> `Zeroable` trait can utilize this.
> 
> Suggested-by: Asahi Lina <lina@...hilina.net>
> Signed-off-by: Benno Lossin <benno.lossin@...ton.me>

I'm a bit surprised by how large this change is, but it looks ok.

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>