linux-kernel - Re: [PATCH] arch: score: Export necessary symbols in related files

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Message-ID: <CAF0htA6KyHZ0=-LADoc9=wuj0rtew=Un8+J5=G1m5_6FGJGu5g@mail.gmail.com>
Date:	Thu, 17 Jul 2014 10:22:30 +0800
From:	Lennox Wu <lennox.wu@...il.com>
To:	Chen Gang <gang.chen.5i5j@...il.com>
Cc:	Liqin Chen <liqin.linux@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arch: score: Export necessary symbols in related files

 Acked-by: Lennox Wu<lennox.wu@...il.com>

2014-07-09 16:48 GMT+08:00 Chen Gang <gang.chen.5i5j@...il.com>:
> 'csum_partial_copy_from_user' and 'flush_dcache_page' are also needed by
> outside modules, so need export them in the related files.
>
> The related error (with allmodconfig under score):
>
>     MODPOST 1365 modules
>   ERROR: "csum_partial_copy_from_user" [net/rxrpc/af-rxrpc.ko] undefined!
>   ERROR: "flush_dcache_page" [net/sunrpc/sunrpc.ko] undefined!
>
>
> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
> ---
>  arch/score/lib/checksum_copy.c | 1 +
>  arch/score/mm/cache.c          | 1 +
>  2 files changed, 2 insertions(+)
>
> diff --git a/arch/score/lib/checksum_copy.c b/arch/score/lib/checksum_copy.c
> index 04565dd..9b770b3 100644
> --- a/arch/score/lib/checksum_copy.c
> +++ b/arch/score/lib/checksum_copy.c
> @@ -50,3 +50,4 @@ unsigned int csum_partial_copy_from_user(const char *src, char *dst,
>
>         return csum_partial(dst, len, sum);
>  }
> +EXPORT_SYMBOL(csum_partial_copy_from_user);
> diff --git a/arch/score/mm/cache.c b/arch/score/mm/cache.c
> index f85ec1a..be91041 100644
> --- a/arch/score/mm/cache.c
> +++ b/arch/score/mm/cache.c
> @@ -72,6 +72,7 @@ void flush_dcache_page(struct page *page)
>         addr = (unsigned long) page_address(page);
>         flush_data_cache_page(addr);
>  }
> +EXPORT_SYMBOL(flush_dcache_page);
>
>  /* called by update_mmu_cache. */
>  void __update_cache(struct vm_area_struct *vma, unsigned long address,
> --
> 1.9.2.459.g68773ac
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