linux-kernel - Re: [PATCH v4 1/6] arm/arm64/xen: hypercall.h add includes guards

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Date:   Mon, 16 Dec 2019 20:36:23 +0000
From:   Julien Grall <julien@....org>
To:     Pavel Tatashin <pasha.tatashin@...een.com>, jmorris@...ei.org,
        sashal@...nel.org, linux-kernel@...r.kernel.org,
        catalin.marinas@....com, will@...nel.org, steve.capper@....com,
        linux-arm-kernel@...ts.infradead.org, maz@...nel.org,
        james.morse@....com, vladimir.murzin@....com, mark.rutland@....com,
        tglx@...utronix.de, gregkh@...uxfoundation.org,
        allison@...utok.net, info@...ux.net, alexios.zavras@...el.com,
        sstabellini@...nel.org, boris.ostrovsky@...cle.com,
        jgross@...e.com, stefan@...er.ch, yamada.masahiro@...ionext.com,
        xen-devel@...ts.xenproject.org, linux@...linux.org.uk,
        andrew.cooper3@...rix.com
Subject: Re: [PATCH v4 1/6] arm/arm64/xen: hypercall.h add includes guards

Hi,

On 04/12/2019 23:20, Pavel Tatashin wrote:
> The arm and arm64 versions of hypercall.h are missing the include
> guards. This is needed because C inlines for privcmd_call are going to
> be added to the files.
> 
> Also fix a comment.
> 
> Signed-off-by: Pavel Tatashin <pasha.tatashin@...een.com>
> ---
>   arch/arm/include/asm/assembler.h       | 2 +-
>   arch/arm/include/asm/xen/hypercall.h   | 4 ++++
>   arch/arm64/include/asm/xen/hypercall.h | 4 ++++
>   include/xen/arm/hypercall.h            | 6 +++---
>   4 files changed, 12 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
> index 99929122dad7..8e9262a0f016 100644
> --- a/arch/arm/include/asm/assembler.h
> +++ b/arch/arm/include/asm/assembler.h
> @@ -480,7 +480,7 @@ THUMB(	orr	\reg , \reg , #PSR_T_BIT	)
>   	.macro	uaccess_disable, tmp, isb=1
>   #ifdef CONFIG_CPU_SW_DOMAIN_PAN
>   	/*
> -	 * Whenever we re-enter userspace, the domains should always be
> +	 * Whenever we re-enter kernel, the domains should always be

This feels unrelated from the rest of the patch and probably want an 
explanation. So I think this want to be in a separate patch.

The rest of the patch looks good to me.

Cheers,

-- 
Julien Grall