linux-kernel - Re: [PATCH 3/3] arm64: configs: unset CPU_BIG

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Message-ID: <bf5db3a5-96da-752c-49ea-d0de899882d5@huawei.com>
Date:   Tue, 1 Oct 2019 15:04:32 +0100
From:   John Garry <john.garry@...wei.com>
To:     Anders Roxell <anders.roxell@...aro.org>,
        <catalin.marinas@....com>, <will@...nel.org>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 3/3] arm64: configs: unset CPU_BIG_ENDIAN

On 26/09/2019 20:30, Anders Roxell wrote:
> When building allmodconfig KCONFIG_ALLCONFIG=$(pwd)/arch/arm64/configs/defconfig
> CONFIG_CPU_BIG_ENDIAN gets enabled. Which tends not to be what most
> people wants.

Today allmodconfig does not enable CONFIG_ACPI due to BE config, which 
is quite unfortunate, I'd say.

>
> Rework so that we disable CONFIG_CPU_BIG_ENDIAN in the defcinfig file so

defconfig

> it doesn't get enabled when building allmodconfig kernels. When doing a
> 'make savedefconfig' CONFIG_CPU_BIG_ENDIAN will be dropped.

So without having to pass KCONFIG_ALLCONFIG or do anything else, what 
about a config for CONFIG_CPU_LITTLE_ENDIAN instead? I'm not sure if 
that was omitted for a specific reason.

Thanks,
John

>
> Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
> ---
>  arch/arm64/configs/defconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 878f379d8d84..c9aa6b9ee996 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -855,3 +855,4 @@ CONFIG_DEBUG_KERNEL=y
>  # CONFIG_SCHED_DEBUG is not set
>  CONFIG_MEMTEST=y
>  # CONFIG_CMDLINE_FORCE is not set
> +# CONFIG_CPU_BIG_ENDIAN is not set
>