linux-kernel - Re: [PATCH v2] arch/unicore32/kernel/ksyms.c: remove 2 export symbols to avoid compiling failure

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Message-ID: <1304349982.40103.1400656133055.JavaMail.root@bj-mail03.pku.edu.cn>
Date:	Wed, 21 May 2014 15:08:53 +0800 (CST)
From:	管雪涛 <gxt@....edu.cn>
To:	Chen Gang <gang.chen.5i5j@...il.com>
Cc:	Guan Xuetao <gxt@...c.pku.edu.cn>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arch/unicore32/kernel/ksyms.c: remove 2 export
 symbols to avoid compiling failure

Thanks, and this is a common error in most architectures.

Acked-by: Xuetao Guan <gxt@...c.pku.edu.cn>

----- Chen Gang <gang.chen.5i5j@...il.com> 写道：
> 'csum_partial' and 'csum_partial_copy_from_user' have already been
> exported in "lib/", so need not export them again, or it will cause
> compiling error.
> 
> The related error (with allmodconfig under unicore32):
> 
>     LD      vmlinux.o
>   lib/built-in.o:(___ksymtab+csum_partial+0x0): multiple definition of `__ksymtab_csum_partial'
>   arch/unicore32/kernel/built-in.o:(___ksymtab+csum_partial+0x0): first defined here
>   lib/built-in.o:(___ksymtab+csum_partial_copy_from_user+0x0): multiple definition of `__ksymtab_csum_partial_copy_from_user'
>   arch/unicore32/kernel/built-in.o:(___ksymtab+csum_partial_copy_from_user+0x0): first defined here
>   make: *** [vmlinux] Error 1
> 
> 
> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
> ---
>  arch/unicore32/kernel/ksyms.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c
> index 63afc7f..bc06140 100644
> --- a/arch/unicore32/kernel/ksyms.c
> +++ b/arch/unicore32/kernel/ksyms.c
> @@ -30,10 +30,6 @@ EXPORT_SYMBOL(find_next_bit);
>  EXPORT_SYMBOL(__udelay);
>  EXPORT_SYMBOL(__const_udelay);
>  
> -	/* networking */
> -EXPORT_SYMBOL(csum_partial);
> -EXPORT_SYMBOL(csum_partial_copy_from_user);
> -
>  	/* string / mem functions */
>  EXPORT_SYMBOL(strchr);
>  EXPORT_SYMBOL(strrchr);
> -- 
> 1.9.2.459.g68773ac

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