linux-kernel - Re: [PATCH -next v7 1/2] rust: clist: Add support to interface with C linked lists

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Message-ID: <77ac3274-a962-469d-a2f6-6ccc0670988a@nvidia.com>
Date: Fri, 6 Feb 2026 11:05:13 -0500
From: Joel Fernandes <joelagnelf@...dia.com>
To: Danilo Krummrich <dakr@...nel.org>, Gary Guo <gary@...yguo.net>
Cc: linux-kernel@...r.kernel.org,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
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 Jani Nikula <jani.nikula@...ux.intel.com>,
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Subject: Re: [PATCH -next v7 1/2] rust: clist: Add support to interface with C
 linked lists



On 2/6/2026 10:53 AM, Danilo Krummrich wrote:
> On Fri Feb 6, 2026 at 4:25 PM CET, Gary Guo wrote:
>> On Fri Feb 6, 2026 at 12:41 AM GMT, Joel Fernandes wrote:
>>> diff --git a/drivers/gpu/Kconfig b/drivers/gpu/Kconfig
>>> index 22dd29cd50b5..2c3dec070645 100644
>>> --- a/drivers/gpu/Kconfig
>>> +++ b/drivers/gpu/Kconfig
>>> @@ -1,7 +1,14 @@
>>>  # SPDX-License-Identifier: GPL-2.0
>>>  
>>> +config RUST_CLIST
>>> +	bool
>>> +	depends on RUST
>>> +	help
>>> +	  Rust abstraction for interfacing with C linked lists.
>>
>> I am not sure if we need extra config entry. This is fully generic so shouldn't
>> generate any code unless there is an user.
> 
> I also don't think we need a Kconfig for this.
> 
> In any case, it shouln't be in drivers/gpu/Kconfig.

Fair point, I believe I was having trouble compiling this into the kernel crate
without warnings (I believe if !GPU_BUDDY). I'll try to drop it and see if we
can get rid of it.

> 
>>> +
>>>  config GPU_BUDDY
>>>  	bool
>>> +	select RUST_CLIST if RUST
> 
> If we will have a Kconfig for this, this belongs in the GPU buddy patch.

You mean, in the GPU buddy bindings patch right? If so, yes, I will move it there.

Thanks.

-- 
Joel Fernandes