From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Kees Cook <keescook@google.com>,
Linux Next Mailing List <linux-next@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: Re: linux-next: build warning after merge of the f2fs tree
Date: Tue, 27 Nov 2018 09:17:47 +1100 [thread overview]
Message-ID: <20181127091747.4830d123@canb.auug.org.au> (raw)
In-Reply-To: <20181126215924.GA55960@jaegeuk-macbookpro.roam.corp.google.com>
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Hi Jaegeuk,
On Mon, 26 Nov 2018 13:59:24 -0800 Jaegeuk Kim <jaegeuk@kernel.org> wrote:
>
> On 11/26, Stephen Rothwell wrote:
> >
> > 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
> >
> > I am not sure why this has turned up now (as opposed to earlier today).
>
> The above change had been there for a long time, as an intended behavior.
Yeah, it popped up due to line number changes in that file and the way
I was filtering new warnings.
> Hmm, I'm not sure how to avoid this.
if you add a comment
/* fall through */
at the point the fall through occurs, then the warning is suppressed
(and it documents that it is deliberate).
--
Cheers,
Stephen Rothwell
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next prev parent reply other threads:[~2018-11-26 22:17 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-26 0:19 linux-next: build warning after merge of the f2fs tree Stephen Rothwell
2018-11-26 21:59 ` Jaegeuk Kim
2018-11-26 22:17 ` Stephen Rothwell [this message]
2018-11-26 22:22 ` Jaegeuk Kim
2018-11-26 22:36 ` Gustavo A. R. Silva
2018-11-26 22:40 ` Stephen Rothwell
-- strict thread matches above, loose matches on Subject: below --
2021-03-02 22:23 Stephen Rothwell
2021-03-03 19:27 ` Jaegeuk Kim
2021-01-07 3:11 Stephen Rothwell
2021-01-07 11:28 ` Chao Yu
2021-01-10 20:33 ` Stephen Rothwell
2021-01-10 23:35 ` Jonathan Corbet
2021-01-11 7:54 ` Chao Yu
2021-01-12 5:09 ` Stephen Rothwell
2021-01-12 6:07 ` Chao Yu
2017-02-09 23:51 Stephen Rothwell
2017-02-10 0:01 ` Jaegeuk Kim
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