linux-kernel - Re: [PATCH 1/3] rust: implement `kernel::sync::Refcount`

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Message-ID: <20241004200836.137ce41f.gary@garyguo.net>
Date: Fri, 4 Oct 2024 20:08:36 +0100
From: Gary Guo <gary@...yguo.net>
To: Andreas Hindborg <a.hindborg@...nel.org>
Cc: "Miguel Ojeda" <ojeda@...nel.org>, "Alex Gaynor"
 <alex.gaynor@...il.com>, "Boqun Feng" <boqun.feng@...il.com>,
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, "Benno Lossin"
 <benno.lossin@...ton.me>, "Alice Ryhl" <aliceryhl@...gle.com>, "Trevor
 Gross" <tmgross@...ch.edu>, "Martin Rodriguez Reboredo"
 <yakoyoku@...il.com>, "Will Deacon" <will@...nel.org>, "Peter Zijlstra"
 <peterz@...radead.org>, "Mark Rutland" <mark.rutland@....com>, "Dirk Behme"
 <dirk.behme@...bosch.com>, <linux-kernel@...r.kernel.org>,
 <rust-for-linux@...r.kernel.org>
Subject: Re: [PATCH 1/3] rust: implement `kernel::sync::Refcount`

On Fri, 04 Oct 2024 20:51:22 +0200
Andreas Hindborg <a.hindborg@...nel.org> wrote:

> Hi Gary,
> 
> "Gary Guo" <gary@...yguo.net> writes:
> 
> [...]
> 
> > diff --git a/rust/helpers/refcount.c b/rust/helpers/refcount.c
> > index f47afc148ec3..39649443426b 100644
> > --- a/rust/helpers/refcount.c
> > +++ b/rust/helpers/refcount.c
> > @@ -8,11 +8,26 @@ refcount_t rust_helper_REFCOUNT_INIT(int n)
> >  	return (refcount_t)REFCOUNT_INIT(n);
> >  }
> >
> > +unsigned int rust_helper_refcount_read(refcount_t *r)
> > +{
> > +	return refcount_read(r);
> > +}  
> 
> +EXPORT_SYMBOL_GPL(rust_helper_refcount_read);
> 
> > +
> > +void rust_helper_refcount_set(refcount_t *r, int n)
> > +{
> > +	refcount_set(r, n);
> > +}  
> 
> +EXPORT_SYMBOL_GPL(rust_helper_refcount_set);
> 
> BR Andreas
> 

Helper symbol export is automatic after
e26fa546042a (rust: kbuild: auto generate helper exports)

Best,
Gary