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Date: Sat, 5 Jul 2025 19:28:07 +0200
From: Danilo Krummrich <dakr@kernel.org>
To: Daniel Almeida <daniel.almeida@collabora.com>
Cc: Miguel Ojeda <ojeda@kernel.org>, Alex Gaynor <alex.gaynor@gmail.com>,
	Boqun Feng <boqun.feng@gmail.com>, Gary Guo <gary@garyguo.net>,
	=?iso-8859-1?Q?Bj=F6rn?= Roy Baron <bjorn3_gh@protonmail.com>,
	Andreas Hindborg <a.hindborg@kernel.org>,
	Alice Ryhl <aliceryhl@google.com>, Trevor Gross <tmgross@umich.edu>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Ilpo =?iso-8859-1?Q?J=E4rvinen?= <ilpo.jarvinen@linux.intel.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	Ying Huang <huang.ying.caritas@gmail.com>,
	Benno Lossin <lossin@kernel.org>, linux-kernel@vger.kernel.org,
	rust-for-linux@vger.kernel.org, Fiona Behrens <me@kloenk.dev>
Subject: Re: [PATCH v12 1/3] rust: io: add resource abstraction
Message-ID: <aGlgpyuz2JKErAUj@cassiopeiae>
References: <20250704-topics-tyr-platform_iomem-v12-0-1d3d4bd8207d@collabora.com>
 <20250704-topics-tyr-platform_iomem-v12-1-1d3d4bd8207d@collabora.com>
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In-Reply-To: <20250704-topics-tyr-platform_iomem-v12-1-1d3d4bd8207d@collabora.com>

On Fri, Jul 04, 2025 at 01:25:26PM -0300, Daniel Almeida wrote:
> +/// Resource Size type.
> +///
> +/// This is a type alias to either `u32` or `u64` depending on the config option
> +/// `CONFIG_PHYS_ADDR_T_64BIT`.
> +#[cfg(CONFIG_PHYS_ADDR_T_64BIT)]
> +pub type ResourceSize = u64;
> +
> +/// Resource Size type.
> +///
> +/// This is a type alias to either `u32` or `u64` depending on the config option
> +/// `CONFIG_PHYS_ADDR_T_64BIT`.
> +#[cfg(not(CONFIG_PHYS_ADDR_T_64BIT))]
> +pub type ResourceSize = u32;

I think someone commented on this previously, but maybe I also do not remember
correctly.

Anyways, can't we just do:

	pub type ResourceSize = bindings::phys_addr_t;

Given that phys_addr_t is already either u32 or u64.