linux-kernel - Re: [PATCH v8 2/2] rust: add dma coherent allocator abstraction.

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Message-ID: <81e9f9aa-d6ff-4377-b278-21898d61b170@gmail.com>
Date: Fri, 10 Jan 2025 10:07:00 +0200
From: Abdiel Janulgue <abdiel.janulgue@...il.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Daniel Almeida <daniel.almeida@...labora.com>,
 Daniel Sedlak <daniel@...lak.dev>, aliceryhl@...gle.com,
 robin.murphy@....com, rust-for-linux@...r.kernel.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 <benno.lossin@...ton.me>,
 Andreas Hindborg <a.hindborg@...nel.org>, Trevor Gross <tmgross@...ch.edu>,
 Danilo Krummrich <dakr@...nel.org>, Valentin Obst <kernel@...entinobst.de>,
 open list <linux-kernel@...r.kernel.org>, Christoph Hellwig <hch@....de>,
 Marek Szyprowski <m.szyprowski@...sung.com>, airlied@...hat.com,
 "open list:DMA MAPPING HELPERS" <iommu@...ts.linux.dev>
Subject: Re: [PATCH v8 2/2] rust: add dma coherent allocator abstraction.

On 09/01/2025 13:32, Miguel Ojeda wrote:
> 
> Note that in mainline, `ffi` (the crate) still redirects to
> `core::ffi`, since we split the change in 2 kernel cycles to make it
> easier to migrate. But in `rust-next`, `ffi` (the crate) already uses
> the new mapping.
> 
> The idea is that you can already use `ffi` (the crate) -- so please use that.
> 
> I hope that helps!
> 
> Cheers,
> Miguel

Thanks, sticking to ffi::c_ulong does indeed fix this.

Regards,
Abdiel