linux-kernel - Re: linux-next: build warning after merge of the f2fs tree

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Date:   Tue, 27 Nov 2018 09:40:29 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Jaegeuk Kim <jaegeuk@...nel.org>
Cc:     Kees Cook <keescook@...gle.com>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: Re: linux-next: build warning after merge of the f2fs tree

Hi Jaegeuk,

On Mon, 26 Nov 2018 14:22:57 -0800 Jaegeuk Kim <jaegeuk@...nel.org> wrote:
>
> Is this okay?

That looks great, thanks.

> From: Jaegeuk Kim <jaegeuk@...nel.org>
> Date: Mon, 26 Nov 2018 14:20:32 -0800
> Subject: [PATCH] f2fs: avoid build warn of fall_through
> 
> After merging the f2fs tree, today's linux-next build
>  (x86_64_allmodconfig) produced this warning:
> 
>  In file included from fs/f2fs/dir.c:11:
>  fs/f2fs/f2fs.h: In function '__mark_inode_dirty_flag':
>  fs/f2fs/f2fs.h:2388:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>     if (set)
>        ^
>  fs/f2fs/f2fs.h:2390:2: note: here
>    case FI_DATA_EXIST:
>    ^~~~
> 
>  Exposed by my use of -Wimplicit-fallthrough
> 
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
> ---
>  fs/f2fs/f2fs.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index 26ad1de8641c..b3fe6803d4c6 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -2387,6 +2387,7 @@ static inline void __mark_inode_dirty_flag(struct inode *inode,
>  	case FI_NEW_INODE:
>  		if (set)
>  			return;
> +		/* fall through */
>  	case FI_DATA_EXIST:
>  	case FI_INLINE_DOTS:
>  	case FI_PIN_FILE:
> -- 

-- 
Cheers,
Stephen Rothwell

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