Thread (3 messages) 3 messages, 3 authors, 2021-06-02

Re: [PATCH v3] amdgpu: remove unreachable code

From: Alex Deucher <hidden>
Date: 2021-06-02 01:57:49
Also in: amd-gfx, dri-devel, lkml

Applied.  Thanks!

On Fri, May 28, 2021 at 8:18 AM Christian König
[off-list ref] wrote:
Am 28.05.21 um 11:29 schrieb Jiapeng Chong:
quoted
In the function amdgpu_uvd_cs_msg(), every branch in the switch
statement will have a return, so the code below the switch statement
will not be executed.

Eliminate the follow smatch warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c:845 amdgpu_uvd_cs_msg() warn:
ignoring unreachable code.

Reported-by: Abaci Robot <redacted>
Signed-off-by: Jiapeng Chong <redacted>
Reviewed-by: Christian König <christian.koenig@amd.com>
quoted
---
Changes in v2:
   -For the follow advice: https://lore.kernel.org/patchwork/patch/1435968/

  drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index c6dbc08..35f6874 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -829,9 +829,8 @@ static int amdgpu_uvd_cs_msg(struct amdgpu_uvd_cs_ctx *ctx,

      default:
              DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
-             return -EINVAL;
      }
-     BUG();
+
      return -EINVAL;
  }
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