linux-kernel - Re: [PATCH 02/13] rust: init: simplify from `map_err` to `inspect

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Date: Tue, 2 Jul 2024 14:27:45 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <benno.lossin@...ton.me>, 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>, 
	Andreas Hindborg <a.hindborg@...sung.com>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, patches@...ts.linux.dev
Subject: Re: [PATCH 02/13] rust: init: simplify from `map_err` to `inspect_err`

On Mon, Jul 1, 2024 at 11:58 PM Miguel Ojeda
<miguel.ojeda.sandonis@...il.com> wrote:
>
> On Mon, Jul 1, 2024 at 10:05 PM Björn Roy Baron
> <bjorn3_gh@...tonmail.com> wrote:
> >
> > The formatting here is a bit weird. I would have expected the ) ending the inspect_err call to be placed on a new line given that the unsafe block isn't placed on the same line as the start of the inspect_err call either. This seems to be a case where rustfmt mostly gives up on formatting. If I deindent the comment and unsafe block rustfmt will keep it that way and if I add a trailing space to the inspect_err line it will keep it and emit an error that it left behind trailing whitespace. Maybe add a block around the comment and unsafe block to make rustfmt work again?
>
> Benno: any preference here? Or even open coding it.

I would open code it with an `if res.is_err() { drop }`. Using inspect
for a side effect other than printing seems weird to me.

Alice