Comment 3 for bug 1097178

I've run a bisect on Linus' master branch, and narrowed the issue down to this one line change, which isn't much to go on:

commit 7707b701ebfea64afa6bfb23aa318fd687892754
Author: Marcin Slusarz <email address hidden>
Commit: Ben Skeggs <email address hidden>

    drm/nv40/mpeg: fix context handling

    It slipped in thanks to typeless API.

    Signed-off-by: Marcin Slusarz <email address hidden>
    Signed-off-by: Ben Skeggs <email address hidden>

diff --git a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c b/drivers/gpu/drm/n
index 1241857..f7c581a 100644
--- a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv40.c
@@ -38,7 +38,7 @@ struct nv40_mpeg_priv {
 };

 struct nv40_mpeg_chan {
- struct nouveau_mpeg base;
+ struct nouveau_mpeg_chan base;
 };