From: Gustavo A. R. Silva <gustavo@embeddedor.com>
Date: Tue, 20 Aug 2019 18:01:03 +0000 (-0500)
Subject: drm/sun4i: sun6i_mipi_dsi: Mark expected switch fall-through
X-Git-Tag: v5.4-rc1~301^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=edf6a05976980b5c21f19a60fde175f736e4ab61;p=platform%2Fkernel%2Flinux-rpi.git

drm/sun4i: sun6i_mipi_dsi: Mark expected switch fall-through

Mark switch cases where we are expecting to fall through.

Fix the following warning (Building: multi_v7_defconfig arm):

drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c: In function ‘sun6i_dsi_transfer’:
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:993:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (msg->rx_len == 1) {
      ^
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:998:2: note: here
  default:
  ^~~~~~~

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---

diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
index a1fc8b5..b889ad3 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -993,6 +993,7 @@ static ssize_t sun6i_dsi_transfer(struct mipi_dsi_host *host,
 			ret = sun6i_dsi_dcs_read(dsi, msg);
 			break;
 		}
+		/* Else, fall through */
 
 	default:
 		ret = -EINVAL;