linux-kernel - Re: [PATCH] staging: lustre: linux-prim.c: fix sparse warnings about static declaration

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Message-ID: <20141230223518.GA31616@hudson.localdomain>
Date:	Tue, 30 Dec 2014 14:35:18 -0800
From:	Jeremiah Mahler <jmmahler@...il.com>
To:	Serguey Parkhomovsky <sergueyparkhomovsky@...il.com>
Cc:	Oleg Drokin <oleg.drokin@...el.com>,
	Andreas Dilger <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	HPDD-discuss@...ts.01.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: lustre: linux-prim.c: fix sparse warnings about
 static declaration

Serguey,

On Mon, Dec 29, 2014 at 03:10:32AM -0800, Serguey Parkhomovsky wrote:
> Fixes the following sparse warnings:
> 
> drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c:198:1: warning: symbol 'libcfs_arch_init' was not declared. Should it be static?
> drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c:204:1: warning: symbol 'libcfs_arch_cleanup' was not declared. Should it be static?
> 
> Signed-off-by: Serguey Parkhomovsky <sergueyparkhomovsky@...il.com>
> ---
>  drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
> index 19f405e..4fee73f 100644
> --- a/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
> +++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
> @@ -194,14 +194,12 @@ cfs_clear_sigpending(void)
>  	spin_unlock_irqrestore(&current->sighand->siglock, flags);
>  }
>  
> -int
> -libcfs_arch_init(void)
> +static int libcfs_arch_init(void)
>  {
>  	return 0;
>  }
>  
> -void
> -libcfs_arch_cleanup(void)
> +static void libcfs_arch_cleanup(void)
>  {
>  	return;
>  }

If you look at the source code just below these functions you will find:

EXPORT_SYMBOL(libcfs_arch_init);
EXPORT_SYMBOL(libcfs_arch_cleanup);

So making these static is incorrect because they are being used outside
of this file.

> -- 
> 1.9.3
> 
> --
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-- 
- Jeremiah Mahler
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