linux-kernel - Re: [PATCH] x86/vdso: avoid warning when building vdso2c on 32-bit host

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Date:   Wed, 10 Mar 2021 12:27:23 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Jan Beulich <jbeulich@...e.com>
Cc:     Andy Lutomirski <luto@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH] x86/vdso: avoid warning when building vdso2c on 32-bit
 host

On Wed, Mar 10, 2021 at 10:22:16AM +0100, Jan Beulich wrote:
> size_t arguments can't compatibly be passed for l-modifier format
> specifiers. Use z instead.
> 
> Fixes: 8382c668ce4f ("x86/vdso: Add support for exception fixup in vDSO functions")
> Signed-off-by: Jan Beulich <jbeulich@...e.com>
> 
> --- a/arch/x86/entry/vdso/vdso2c.h
> +++ b/arch/x86/entry/vdso/vdso2c.h
> @@ -35,7 +35,7 @@ static void BITSFUNC(extract)(const unsi
>  	if (offset + len > data_len)
>  		fail("section to extract overruns input data");
>  
> -	fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len);
> +	fprintf(outfile, "static const unsigned char %s[%zu] = {", name, len);
>  	BITSFUNC(copy)(outfile, data + offset, len);
>  	fprintf(outfile, "\n};\n\n");

Already fixed:

https://git.kernel.org/tip/70c9d959226b7c5c48c119e2c1cfc1424f87b023

Thx.

-- 
Regards/Gruss,
    Boris.

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