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From: Nathan Chancellor <natechancellor@gmail.com>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: Arnd Bergmann <arnd@kernel.org>,
	Fangrui Song <maskray@google.com>, Jian Cai <jiancai@google.com>,
	Peter Smith <peter.smith@arm.com>,
	Russell King <linux@armlinux.org.uk>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Re: [PATCH] ARM: Kconfig: CPU_BIG_ENDIAN depends on !LD_IS_LLD
Date: Mon, 9 Nov 2020 18:34:19 -0700	[thread overview]
Message-ID: <20201110013419.GA2443932@ubuntu-m3-large-x86> (raw)
In-Reply-To: <20201109224713.16308-1-ndesaulniers@google.com>

On Mon, Nov 09, 2020 at 02:47:12PM -0800, Nick Desaulniers wrote:
> LLD does not yet support any big endian architectures. Make this config
> non-selectable when using LLD until LLD is fixed.
> 
> Link: https://github.com/ClangBuiltLinux/linux/issues/965
> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

I tested allyesconfig, allmodconfig, and about ten to fifteen
randconfigs and never saw CONFIG_CPU_BIG_ENDIAN appear.

Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>

> ---
>  arch/arm/mm/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index 65e4482e3849..02692fbe2db5 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -743,6 +743,7 @@ config SWP_EMULATE
>  config CPU_BIG_ENDIAN
>  	bool "Build big-endian kernel"
>  	depends on ARCH_SUPPORTS_BIG_ENDIAN
> +	depends on !LD_IS_LLD
>  	help
>  	  Say Y if you plan on running a kernel in big-endian mode.
>  	  Note that your board must be properly built and your board
> -- 
> 2.29.2.222.g5d2a92d10f8-goog
> 

WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <natechancellor@gmail.com>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: Arnd Bergmann <arnd@kernel.org>,
	Fangrui Song <maskray@google.com>,
	linux-kernel@vger.kernel.org,
	Russell King <linux@armlinux.org.uk>,
	Peter Smith <peter.smith@arm.com>,
	clang-built-linux@googlegroups.com, Jian Cai <jiancai@google.com>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ARM: Kconfig: CPU_BIG_ENDIAN depends on !LD_IS_LLD
Date: Mon, 9 Nov 2020 18:34:19 -0700	[thread overview]
Message-ID: <20201110013419.GA2443932@ubuntu-m3-large-x86> (raw)
In-Reply-To: <20201109224713.16308-1-ndesaulniers@google.com>

On Mon, Nov 09, 2020 at 02:47:12PM -0800, Nick Desaulniers wrote:
> LLD does not yet support any big endian architectures. Make this config
> non-selectable when using LLD until LLD is fixed.
> 
> Link: https://github.com/ClangBuiltLinux/linux/issues/965
> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

I tested allyesconfig, allmodconfig, and about ten to fifteen
randconfigs and never saw CONFIG_CPU_BIG_ENDIAN appear.

Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>

> ---
>  arch/arm/mm/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
> index 65e4482e3849..02692fbe2db5 100644
> --- a/arch/arm/mm/Kconfig
> +++ b/arch/arm/mm/Kconfig
> @@ -743,6 +743,7 @@ config SWP_EMULATE
>  config CPU_BIG_ENDIAN
>  	bool "Build big-endian kernel"
>  	depends on ARCH_SUPPORTS_BIG_ENDIAN
> +	depends on !LD_IS_LLD
>  	help
>  	  Say Y if you plan on running a kernel in big-endian mode.
>  	  Note that your board must be properly built and your board
> -- 
> 2.29.2.222.g5d2a92d10f8-goog
> 

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  reply	other threads:[~2020-11-10  1:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-09 22:47 [PATCH] ARM: Kconfig: CPU_BIG_ENDIAN depends on !LD_IS_LLD Nick Desaulniers
2020-11-09 22:47 ` Nick Desaulniers
2020-11-10  1:34 ` Nathan Chancellor [this message]
2020-11-10  1:34   ` Nathan Chancellor

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