linux-kernel - Re: [PATCH] x86/xen: Remove the unused function p2m_top_mfn

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Date:   Wed, 4 Jan 2023 09:31:36 +0100
From:   Jan Beulich <jbeulich@...e.com>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Cc:     boris.ostrovsky@...cle.com, tglx@...utronix.de, mingo@...hat.com,
        bp@...en8.de, dave.hansen@...ux.intel.com, x86@...nel.org,
        hpa@...or.com, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org,
        Abaci Robot <abaci@...ux.alibaba.com>, jgross@...e.com
Subject: Re: [PATCH] x86/xen: Remove the unused function p2m_top_mfn_init()

On 27.12.2022 09:21, Jiapeng Chong wrote:
> The function p2m_top_mfn_init is defined in the p2m.c file,
> but not called elsewhere, so remove this unused function.

This and the title are wrong - p2m_top_mfn_init() is used by
xen_build_mfn_list_list().

> arch/x86/xen/p2m.c:137:24: warning: unused function 'p2m_index'.

Whereas this and the actual code change look correct to me.

Jan