netdev - Re: [PATCH net-next v7 2/5] rust: net::phy add module_phy

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Message-ID: <0a1889c9-938c-4be8-946e-c330112e1ed8@proton.me>
Date: Sun, 19 Nov 2023 10:54:40 +0000
From: Benno Lossin <benno.lossin@...ton.me>
To: FUJITA Tomonori <fujita.tomonori@...il.com>, aliceryhl@...gle.com
Cc: andrew@...n.ch, miguel.ojeda.sandonis@...il.com, netdev@...r.kernel.org, rust-for-linux@...r.kernel.org, tmgross@...ch.edu, wedsonaf@...il.com
Subject: Re: [PATCH net-next v7 2/5] rust: net::phy add module_phy_driver macro

On 19.11.23 11:50, FUJITA Tomonori wrote:
> On Fri, 17 Nov 2023 09:39:08 +0000
> Alice Ryhl <aliceryhl@...gle.com> wrote:
>> FUJITA Tomonori <fujita.tomonori@...il.com> writes:
>>> +            ::kernel::bindings::mdio_device_id {
>>
>> Here, I recommend `$crate` instead of `::kernel`.
> 
> I copied the code that Benno wrote, IIRC. Either is fine by me. Why
> `$crate` is better here?

When I suggested that, I might have confused the location of the macro
being in the `macros` crate. There you cannot use `$crate`, since it
is not available for proc macros. But since this is in the `kernel`
crate, you can use `$crate`.

`$crate` is better, since it unambiguously refers to the current crate
and `::kernel` only works, because we named our crate `kernel`. So the
code using `$crate` is more portable.

> Also better to replace other `::kernel` in this macro?

Yes.

-- 
Cheers,
Benno