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Subject[PATCH] video: fbdev: fsl-diu-fb: mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

Fix the following warnings (Building: mpc512x_defconfig powerpc):

drivers/video/fbdev/fsl-diu-fb.c: In function ‘fsl_diu_ioctl’:
./include/linux/device.h:1750:2: warning: this statement may fall through [-Wimplicit-fallthrough=]
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/fsl-diu-fb.c:1287:3: note: in expansion of macro ‘dev_warn’
dev_warn(info->dev,
^~~~~~~~
drivers/video/fbdev/fsl-diu-fb.c:1290:2: note: here
case MFB_SET_PIXFMT:
^~~~
In file included from ./include/linux/acpi.h:15:0,
from ./include/linux/i2c.h:13,
from ./include/uapi/linux/fb.h:6,
from ./include/linux/fb.h:6,
from drivers/video/fbdev/fsl-diu-fb.c:20:
./include/linux/device.h:1750:2: warning: this statement may fall through [-Wimplicit-fallthrough=]
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/fsl-diu-fb.c:1296:3: note: in expansion of macro ‘dev_warn’
dev_warn(info->dev,
^~~~~~~~
drivers/video/fbdev/fsl-diu-fb.c:1299:2: note: here
case MFB_GET_PIXFMT:
^~~~

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/video/fbdev/fsl-diu-fb.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c
index d19f58263b4e..3e410b9eb272 100644
--- a/drivers/video/fbdev/fsl-diu-fb.c
+++ b/drivers/video/fbdev/fsl-diu-fb.c
@@ -1287,6 +1287,7 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
dev_warn(info->dev,
"MFB_SET_PIXFMT value of 0x%08x is deprecated.\n",
MFB_SET_PIXFMT_OLD);
+ /* fall through */
case MFB_SET_PIXFMT:
if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt)))
return -EFAULT;
@@ -1296,6 +1297,7 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
dev_warn(info->dev,
"MFB_GET_PIXFMT value of 0x%08x is deprecated.\n",
MFB_GET_PIXFMT_OLD);
+ /* fall through */
case MFB_GET_PIXFMT:
pix_fmt = ad->pix_fmt;
if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt)))
--
2.23.0
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