linux-kernel - Re: [PATCH 7/9] x86: vdso: Modify asm/vdso/getrandom.h to include datapage

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Message-ID: <ebb01fce-aea5-4d82-b8b9-2e30f534b54c@csgroup.eu>
Date: Wed, 4 Sep 2024 19:19:54 +0200
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Vincenzo Frascino <vincenzo.frascino@....com>,
 linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, linux-mm@...ck.org
Cc: Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 "Jason A . Donenfeld" <Jason@...c4.com>,
 Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>,
 Naveen N Rao <naveen@...nel.org>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 "H . Peter Anvin" <hpa@...or.com>, Theodore Ts'o <tytso@....edu>,
 Arnd Bergmann <arnd@...db.de>, Andrew Morton <akpm@...ux-foundation.org>,
 Steven Rostedt <rostedt@...dmis.org>, Masami Hiramatsu
 <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [PATCH 7/9] x86: vdso: Modify asm/vdso/getrandom.h to include
 datapage

Le 03/09/2024 à 17:14, Vincenzo Frascino a écrit :
> The VDSO implementation includes headers from outside of the
> vdso/ namespace.
> 
> Modify asm/vdso/getrandom.h to include datapage.

Does  asm/vdso/getrandom.h need datapage ? If not it is the ones that 
need it that should include it.

> 
> Cc: Andy Lutomirski <luto@...nel.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Jason A. Donenfeld <Jason@...c4.com>
> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
> ---
>   arch/x86/include/asm/vdso/getrandom.h | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/arch/x86/include/asm/vdso/getrandom.h b/arch/x86/include/asm/vdso/getrandom.h
> index ff5334ad32a0..4597d5a6f094 100644
> --- a/arch/x86/include/asm/vdso/getrandom.h
> +++ b/arch/x86/include/asm/vdso/getrandom.h
> @@ -7,6 +7,8 @@
>   
>   #ifndef __ASSEMBLY__
>   
> +#include <vdso/datapage.h>
> +
>   #include <asm/unistd.h>
>   #include <asm/vvar.h>
>