On 9/11/19 1:36 PM, Gustavo A. R. Silva wrote:

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

Thanks, patch queued for v5.6 (also sorry for the delay).

Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics

---

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)))