Re: [PATCH 4/6] of/fdt: Populate phys_initrd_start/phys_initrd_size from FDT

From: Russell King - ARM Linux
Date: Tue Oct 30 2018 - 05:33:03 EST


On Mon, Oct 29, 2018 at 04:52:04PM -0700, Florian Fainelli wrote:
> If the architecture implements ARCH_HAS_PHYS_INITRD, make the FDT
> scanning code populate the physical address of the start of the FDT and
> its size.
>
> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
> ---
> arch/arm/mm/init.c | 2 +-
> drivers/of/fdt.c | 4 ++++
> 2 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
> index 8f364aa24172..517e95cfb5d2 100644
> --- a/arch/arm/mm/init.c
> +++ b/arch/arm/mm/init.c
> @@ -237,7 +237,7 @@ static void __init arm_initrd_init(void)
> phys_addr_t start;
> unsigned long size;
>
> - /* FDT scan will populate initrd_start */
> + /* FDT scan will populate initrd_start and phys_initrd_start */
> if (initrd_start && !phys_initrd_size) {
> phys_initrd_start = __virt_to_phys(initrd_start);
> phys_initrd_size = initrd_end - initrd_start;

We should be able to delete the whole if () { } block and comment as
a result of this series - it was added by Rob in 65939301acdb to
unify the DT initrd code.

--
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