linux-kernel - Re: [PATCH] xtensa: annotate dtb_start variable as static _

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Message-ID: <CAK7LNAQjKNrAK8ffZiz7qOKRFcUqQds5bMjdOXKPd0gedzhjYw@mail.gmail.com>
Date: Thu, 7 Nov 2024 01:51:04 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kernel@...r.kernel.org, Chris Zankel <chris@...kel.net>, 
	Max Filippov <jcmvbkbc@...il.com>
Subject: Re: [PATCH] xtensa: annotate dtb_start variable as static __initdata

On Wed, Sep 18, 2024 at 12:15 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> The 'dtb_start' variable is only used within arch/xtensa/kernel/setup.c.
> Mark it as 'static'.
>
> It is only used by parse_tag_fdt() and init_arch(), both of which are
> annotated as __init. Therefore, dtb_start can be annotated as __initdata,
> so it will discarded after boot.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---

Ping?

>
>  arch/xtensa/kernel/setup.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
> index bdec4a773af0..3e076b64cc61 100644
> --- a/arch/xtensa/kernel/setup.c
> +++ b/arch/xtensa/kernel/setup.c
> @@ -55,7 +55,7 @@ extern int initrd_below_start_ok;
>  #endif
>
>  #ifdef CONFIG_USE_OF
> -void *dtb_start = __dtb_start;
> +static void *dtb_start __initdata = __dtb_start;
>  #endif
>
>  extern unsigned long loops_per_jiffy;
> --
> 2.43.0
>


-- 
Best Regards
Masahiro Yamada