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

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Message-ID: <Z36X_ZnCmBQBMoZ6@pollux>
Date: Wed, 8 Jan 2025 16:21:33 +0100
From: Danilo Krummrich <dakr@...nel.org>
To: Christoph Hellwig <hch@....de>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
	Abdiel Janulgue <abdiel.janulgue@...il.com>,
	daniel.almeida@...labora.com, 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>,
	Valentin Obst <kernel@...entinobst.de>,
	open list <linux-kernel@...r.kernel.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>, airlied@...hat.com,
	"open list:DMA MAPPING HELPERS" <iommu@...ts.linux.dev>,
	Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v8 2/2] rust: add dma coherent allocator abstraction.

On Wed, Jan 08, 2025 at 04:18:58PM +0100, Christoph Hellwig wrote:
> On Wed, Jan 08, 2025 at 04:16:18PM +0100, Miguel Ojeda wrote:
> > On Wed, Jan 8, 2025 at 3:00 PM Christoph Hellwig <hch@....de> wrote:
> > >
> > > No rust code in kernel/dma, please.
> > 
> > What do you suggest?
> 
> Keep the wrappers in your code instead of making life painful for
> others.
> 

What does "your code" mean? Duplicated in every driver? Otherwise
rust/kernel/dma.rs seems reasonable, no?