Re: [patch v11 09/23] ARM64 / ACPI: If we chose to boot from acpi then disable FDT

From: Catalin Marinas
Date: Wed Mar 25 2015 - 21:05:54 EST


On Tue, Mar 24, 2015 at 10:02:42PM +0800, Hanjun Guo wrote:
> If the early boot methods of acpi are happy that we have valid ACPI
> tables and acpi=force has been passed, then do not unflat devicetree
> effectively disabling further hardware probing from DT.
[...]
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -390,7 +390,8 @@ void __init setup_arch(char **cmdline_p)
>
> early_ioremap_reset();
>
> - unflatten_device_tree();
> + if (acpi_disabled)
> + unflatten_device_tree();

So if we have acpi=force but the acpi failed, do we have acpi_disabled
set? Or this requires Lorenzo's patch?

--
Catalin

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/