linux-kernel - [PATCH] drm/radeon/r300: Mark expected switch fall-throughs

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Message-ID: <20181012161236.GA21768@embeddedor.com>
Date:   Fri, 12 Oct 2018 18:12:36 +0200
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>
Cc:     amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] drm/radeon/r300: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Notice that in this particular case, I replaced "Pass through." with
"Fall through.", which is what GCC is expecting to find.

Addresses-Coverity-ID: 114734 ("Missing break in switch")
Addresses-Coverity-ID: 114735 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/gpu/drm/radeon/r300.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 21161aa..652126f 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -814,7 +814,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 					  ((idx_value >> 21) & 0xF));
 				return -EINVAL;
 			}
-			/* Pass through. */
+			/* Fall through. */
 		case 6:
 			track->cb[i].cpp = 4;
 			break;
@@ -965,7 +965,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 				return -EINVAL;
 			}
 			/* The same rules apply as for DXT3/5. */
-			/* Pass through. */
+			/* Fall through. */
 		case R300_TX_FORMAT_DXT3:
 		case R300_TX_FORMAT_DXT5:
 			track->textures[i].cpp = 1;
-- 
2.7.4