linux-kernel - [PATCH v2] drm: radeon: add a missing break in evergreen_cs_handle

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Date:   Thu, 17 Jan 2019 21:40:47 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Alex Deucher <alexander.deucher@....com>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] drm: radeon: add a missing break in evergreen_cs_handle_reg

In commit dd220a00e8bd ("drm/radeon/kms: add support for streamout v7")
case statements were added without a terminating break statement. This
commit adds the missing break. This was discovered during a compilation
with W=1.

This commit removes the following warning:

  drivers/gpu/drm/radeon/evergreen_cs.c:1301:11: warning: this statement may fall through [-Wimplicit-fallthrough=]

Suggested-by: Alex Deucher <alexander.deucher@....com>
Fixes: dd220a00e8bd ("drm/radeon/kms: add support for streamout v7")
Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
v2: Add missing break statement, instead of marking it as fall through

 drivers/gpu/drm/radeon/evergreen_cs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index f471537c852f..1e14c6921454 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -1299,6 +1299,7 @@ static int evergreen_cs_handle_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 			return -EINVAL;
 		}
 		ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff);
+		break;
 	case CB_TARGET_MASK:
 		track->cb_target_mask = radeon_get_ib_value(p, idx);
 		track->cb_dirty = true;
-- 
2.19.2