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Gustavo A. R. Silva 6eaa79ff68 video: fbdev: s3c-fb: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/video/fbdev/s3c-fb.c: In function ‘s3c_fb_blank’:
drivers/video/fbdev/s3c-fb.c:811:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
   sfb->enabled &= ~(1 << index);
   ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
drivers/video/fbdev/s3c-fb.c:814:2: note: here
  case FB_BLANK_NORMAL:
  ^~~~
  LD [M]  drivers/staging/greybus/gb-light.o
  CC [M]  drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gp10b.o
drivers/video/fbdev/s3c-fb.c: In function ‘s3c_fb_check_var’:
drivers/video/fbdev/s3c-fb.c:286:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
   var->transp.length = 1;
   ~~~~~~~~~~~~~~~~~~~^~~
drivers/video/fbdev/s3c-fb.c:288:2: note: here
  case 18:
  ^~~~
drivers/video/fbdev/s3c-fb.c:314:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
   var->transp.offset = 24;
   ~~~~~~~~~~~~~~~~~~~^~~~
drivers/video/fbdev/s3c-fb.c:316:2: note: here
  case 24:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comments are modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
History 2019-07-05 17:42:13 +02:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.