Re: [PATCH v2] mm: Fix memblock_free_late() when using deferred struct page

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

On Thu, 2026-02-19 at 12:16 +0200, Mike Rapoport wrote:
> static struct efi_freeable_range *ranges_to_free;

 __initdata ?

> +static int __init efi_free_boot_services_memory(void)
> +{
> +	struct efi_freeable_range *range = ranges_to_free;
> +

	if (!range)
		return 0;

IE. We might not even be running UEFI or we might have hit the

 	if (efi_enabled(EFI_DBG))
 		return;

test and thus not allocated the table.

> +	while (range->start) {
> +		void *start = phys_to_virt(range->start);
> +		void *end = phys_to_virt(range->end);
> +
> +		free_reserved_area(start, end, -1, NULL);
> +		range++;
> +	}
> +	kfree(ranges_to_free);
> +	return 0;
> +}