linux-kernel - Re: [9/9] nds32: Fix the allmodconfig build. To make sure CONFIG_CPU_LITTLE

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Date:   Thu, 19 Apr 2018 11:38:40 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Greentime Hu <green.hu@...il.com>
Cc:     linux-kernel@...r.kernel.org, arnd@...db.de,
        greentime@...estech.com, private@...ck-us.net
Subject: Re: [9/9] nds32: Fix the allmodconfig build. To make sure
 CONFIG_CPU_LITTLE_ENDIAN is default y

On Thu, Apr 19, 2018 at 09:18:15PM +0800, Greentime Hu wrote:
> This way we can build kernel with CONFIG_CPU_LITTLE_ENDIAN=y and allmodconfig
> will be available.
> 
> Signed-off-by: Greentime Hu <greentime@...estech.com>

As Arnd suspected, this causes allnoconfig to fail.
The failure is due to endianness mismatches in vdso code.

Not sure if that is really an improvement.

Guenter

> ---
>  arch/nds32/Kconfig.cpu | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/nds32/Kconfig.cpu b/arch/nds32/Kconfig.cpu
> index ba44cc539da9..b8c8984d1456 100644
> --- a/arch/nds32/Kconfig.cpu
> +++ b/arch/nds32/Kconfig.cpu
> @@ -1,10 +1,11 @@
>  comment "Processor Features"
>  
>  config CPU_BIG_ENDIAN
> -	bool "Big endian"
> +	def_bool !CPU_LITTLE_ENDIAN
>  
>  config CPU_LITTLE_ENDIAN
> -        def_bool !CPU_BIG_ENDIAN
> +	bool "Little endian"
> +	default y
>  
>  config HWZOL
>  	bool "hardware zero overhead loop support"