linux-kernel - Re: [PATCH v3 4/6] rust: sync: replace `kernel::c

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Message-ID: <CAJ-ks9=whG4K2s0vhBetGAaCHtFBXcHETWqQjVh2DWciYK4Xdw@mail.gmail.com>
Date: Mon, 17 Nov 2025 12:11:32 -0500
From: Tamir Duberstein <tamird@...il.com>
To: Alice Ryhl <aliceryhl@...gle.com>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>, Luis Chamberlain <mcgrof@...nel.org>, 
	Russ Weight <russ.weight@...ux.dev>, Danilo Krummrich <dakr@...nel.org>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
	Gary Guo <gary@...yguo.net>, Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, FUJITA Tomonori <fujita.tomonori@...il.com>, 
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	netdev@...r.kernel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v3 4/6] rust: sync: replace `kernel::c_str!` with C-Strings

On Mon, Nov 17, 2025 at 9:49 AM Alice Ryhl <aliceryhl@...gle.com> wrote:
>
> On Mon, Nov 17, 2025 at 12:52:22AM +0100, Miguel Ojeda wrote:
> > On Mon, Nov 17, 2025 at 12:09 AM Miguel Ojeda
> > <miguel.ojeda.sandonis@...il.com> wrote:
> > >
> > > This requires the next commit plus it needs callers of `new_spinlock!`
> > > in Binder to be fixed at the same time.
> >
> > Actually, do we even want callers to have to specify `c`?
> >
> > For instance, in the `module!` macro we originally had `b`, and
> > removed it for simplicity of callers:
> >
> >     b13c9880f909 ("rust: macros: take string literals in `module!`")
>
> Yeah I think ideally the new_spinlock! macro invokes c_str! on the
> provided string literal to avoid users of the macro from needing the
> c prefix.
>
> Alice

Makes sense and done in v4 (which contains only a small portion of
this patch and no others).