Re: [RFC PATCH 02/34] ARM: mm: make 2-level pgd_t a scalar

David Laight <[email protected]> Tue, 14 Jul 2026 13:34:15 +0100

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Message-ID	<20260714133415.78e25654@pumpkin>

On Mon, 13 Jul 2026 14:55:41 +0100
Yeoreum Yun <[email protected]> wrote:

> From: "David Hildenbrand (Arm)" <[email protected]>
> 
> We don't want pgd_t to be an array, as it prohibits returning it from a
> function, like pgdp_get().

If you use a two element structure the compiler/ABI might be able to
return that from a function in two registers.
That might make the entire mess more readable ...

	David