linux-kernel - Re: [PATCH] staging/erofs: fix sparse's warnings on undeclared symbols in erofs

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Date:   Thu, 21 Feb 2019 22:35:01 +0800
From:   Gao Xiang <gaoxiang25@...wei.com>
To:     Bo YU <tsu.yubo@...il.com>
CC:     <yuchao0@...wei.com>, <gregkh@...uxfoundation.org>,
        <yuzibode@....com>, <linux-erofs@...ts.ozlabs.org>,
        <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
        Miao Xie <miaoxie@...wei.com>,
        "fangwei (I)" <fangwei1@...wei.com>
Subject: Re: [PATCH] staging/erofs: fix sparse's warnings on undeclared
 symbols in erofs

Hi Bo,

On 2019/2/21 22:28, Bo YU wrote:
> From: Bo Yu <tsu.yubo@...il.com>
> 
> Fix sparse warnings:
> 
> drivers/staging/erofs/utils.c:134:6: warning: symbol
> 'erofs_try_to_release_workgroup' was not declared. Should it be static?
> 
> Fixes: 51232df5e4b26("staging: erofs: fix race when the managed cache is enabled")
> Cc: Gao Xiang <gaoxiang25@...wei.com>
> Cc: Chao Yu <yuchao0@...wei.com>
> CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Bo Yu <tsu.yubo@...il.com>
> ---
>  drivers/staging/erofs/utils.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/erofs/utils.c b/drivers/staging/erofs/utils.c
> index b535898ca753..33cd5ad55cb8 100644
> --- a/drivers/staging/erofs/utils.c
> +++ b/drivers/staging/erofs/utils.c
> @@ -131,7 +131,7 @@ static void erofs_workgroup_unfreeze_final(struct erofs_workgroup *grp)
>  	__erofs_workgroup_free(grp);
>  }
>  
> -bool erofs_try_to_release_workgroup(struct erofs_sb_info *sbi,
> +static bool erofs_try_to_release_workgroup(struct erofs_sb_info *sbi,
>  				    struct erofs_workgroup *grp,
>  				    bool cleanup)
>  {
> 

Have you looked the latest kernel code?
It seems erofs_try_to_release_workgroup is already be claimed as static...

See:
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git/tree/drivers/staging/erofs/utils.c?h=staging-next#n148

Thanks,
Gao Xiang