Since there can only be one of in_fence/exec_fence, just use the single
in_fence local.

v2: Considate lookup

Signed-off-by: Chris Wilson <[email protected]>
Cc: Mika Kuoppala <[email protected]>
---
 .../gpu/drm/i915/gem/i915_gem_execbuffer.c    | 40 +++++++------------
 1 file changed, 14 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c 
b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index d54a4933cc05..3c98aaaa8d11 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -2622,7 +2622,6 @@ i915_gem_do_execbuffer(struct drm_device *dev,
        struct drm_i915_private *i915 = to_i915(dev);
        struct i915_execbuffer eb;
        struct dma_fence *in_fence = NULL;
-       struct dma_fence *exec_fence = NULL;
        struct sync_file *out_fence = NULL;
        struct i915_vma *batch;
        int out_fence_fd = -1;
@@ -2665,30 +2664,22 @@ i915_gem_do_execbuffer(struct drm_device *dev,
        if (args->flags & I915_EXEC_IS_PINNED)
                eb.batch_flags |= I915_DISPATCH_PINNED;
 
-       if (args->flags & I915_EXEC_FENCE_IN) {
+#define IN_FENCES (I915_EXEC_FENCE_IN | I915_EXEC_FENCE_SUBMIT)
+       if (args->flags & IN_FENCES) {
+               if ((args->flags & IN_FENCES) == IN_FENCES)
+                       return -EINVAL;
+
                in_fence = sync_file_get_fence(lower_32_bits(args->rsvd2));
                if (!in_fence)
                        return -EINVAL;
        }
-
-       if (args->flags & I915_EXEC_FENCE_SUBMIT) {
-               if (in_fence) {
-                       err = -EINVAL;
-                       goto err_in_fence;
-               }
-
-               exec_fence = sync_file_get_fence(lower_32_bits(args->rsvd2));
-               if (!exec_fence) {
-                       err = -EINVAL;
-                       goto err_in_fence;
-               }
-       }
+#undef IN_FENCES
 
        if (args->flags & I915_EXEC_FENCE_OUT) {
                out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
                if (out_fence_fd < 0) {
                        err = out_fence_fd;
-                       goto err_exec_fence;
+                       goto err_in_fence;
                }
        }
 
@@ -2779,14 +2770,13 @@ i915_gem_do_execbuffer(struct drm_device *dev,
        }
 
        if (in_fence) {
-               err = i915_request_await_dma_fence(eb.request, in_fence);
-               if (err < 0)
-                       goto err_request;
-       }
-
-       if (exec_fence) {
-               err = i915_request_await_execution(eb.request, exec_fence,
-                                                  eb.engine->bond_execute);
+               if (args->flags & I915_EXEC_FENCE_SUBMIT)
+                       err = i915_request_await_execution(eb.request,
+                                                          in_fence,
+                                                          
eb.engine->bond_execute);
+               else
+                       err = i915_request_await_dma_fence(eb.request,
+                                                          in_fence);
                if (err < 0)
                        goto err_request;
        }
@@ -2855,8 +2845,6 @@ i915_gem_do_execbuffer(struct drm_device *dev,
 err_out_fence:
        if (out_fence_fd != -1)
                put_unused_fd(out_fence_fd);
-err_exec_fence:
-       dma_fence_put(exec_fence);
 err_in_fence:
        dma_fence_put(in_fence);
        return err;
-- 
2.20.1

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