From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Rothwell <sfr@canb.auug.org.au>
Subject: linux-next: build warning after merge of the fbdev tree
Date: Tue, 2 Apr 2019 09:30:07 +1100
Message-ID: <20190402093007.0b03b02e@canb.auug.org.au>
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To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Linux Next Mailing List <linux-next@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Yifeng Li <tomli@tomli.me>, "Gustavo A. R. Silva" <gustavo@embeddedor.com>, Kees Cook <keescook@chromium.org>
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Hi Bartlomiej,

After merging the fbdev tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

drivers/video/fbdev/sm712fb.c: In function 'smtc_blank':
drivers/video/fbdev/sm712fb.c:900:4: warning: this statement may fall throu=
gh [-Wimplicit-fallthrough=3D]
    smtc_seqw(0x6b, 0x02);
    ^~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/sm712fb.c:901:3: note: here
   case 0x720:
   ^~~~

Introduced by commit

  f627caf55b8e ("fbdev: sm712fb: fix crashes and garbled display during DPM=
S modesetting")

I get this warning because I am building with -Wimplicit-fallthrough
in attempt to catch new additions early.  The gcc warning can be turned
off by adding a /* fall through */ comment at the point the fall through
happens (assuming that the fall through is intentional).

--=20
Cheers,
Stephen Rothwell

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