linux-kernel - Re: [PATCH v5 12/16] arm64: add KHO support

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Message-ID: <55a5e3f3-1b3f-469b-bde0-69abfff826e4@kernel.org>
Date: Thu, 20 Mar 2025 08:13:24 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Changyuan Lyu <changyuanl@...gle.com>, linux-kernel@...r.kernel.org
Cc: graf@...zon.com, akpm@...ux-foundation.org, luto@...nel.org,
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Subject: Re: [PATCH v5 12/16] arm64: add KHO support

On 20/03/2025 02:55, Changyuan Lyu wrote:
>  
> +/**
> + * early_init_dt_check_kho - Decode info required for kexec handover from DT
> + */
> +static void __init early_init_dt_check_kho(void)
> +{
> +	unsigned long node = chosen_node_offset;
> +	u64 kho_start, scratch_start, scratch_size;
> +	const __be32 *p;
> +	int l;
> +
> +	if (!IS_ENABLED(CONFIG_KEXEC_HANDOVER) || (long)node < 0)
> +		return;
> +
> +	p = of_get_flat_dt_prop(node, "linux,kho-fdt", &l);


You are adding undocumented ABI for OF properties. That's not what was
explained last time.

NAK.


Best regards,
Krzysztof