linux-kernel - Re: [PATCH -next] x86/sev: Mark boot_ghcb_page and boot

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Message-ID: <867d53e7-2d56-0f8d-2987-a0b2320dea43@amd.com>
Date:   Wed, 26 Jul 2023 08:22:44 -0500
From:   Tom Lendacky <thomas.lendacky@....com>
To:     Li Zetao <lizetao1@...wei.com>, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de
Cc:     x86@...nel.org, hpa@...or.com, rppt@...nel.org,
        kirill.shutemov@...ux.intel.com, michael.roth@....com,
        nikunj@....com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] x86/sev: Mark boot_ghcb_page and boot_ghcb static

On 7/26/23 12:06, Li Zetao wrote:
> This patch fixes the following sprse warning:
> 
> arch/x86/boot/compressed/sev.c:28:13: warning:
> 	symbol boot_ghcb_page was not declared. Should it be static?
> arch/x86/boot/compressed/sev.c:29:13: warning:
> 	symbol boot_ghcb was not declared. Should it be static?
> 
> No functional change intended.
> 
> Signed-off-by: Li Zetao <lizetao1@...wei.com>

Reviewed-by: Tom Lendacky <thomas.lendacky@....com>

> ---
>   arch/x86/boot/compressed/sev.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
> index 09dc8c187b3c..323f6298a6b2 100644
> --- a/arch/x86/boot/compressed/sev.c
> +++ b/arch/x86/boot/compressed/sev.c
> @@ -25,8 +25,8 @@
>   #include "error.h"
>   #include "../msr.h"
>   
> -struct ghcb boot_ghcb_page __aligned(PAGE_SIZE);
> -struct ghcb *boot_ghcb;
> +static struct ghcb boot_ghcb_page __aligned(PAGE_SIZE);
> +static struct ghcb *boot_ghcb;
>   
>   /*
>    * Copy a version of this function here - insn-eval.c can't be used in