gpu: nvgpu: Make sure struct is specified

Make sure that struct class is at least forward declared so that
inclusing nvgpu_common.h can be done from anywhere with no dependencies.

Bug 1799159
Bug 1823380

Change-Id: Id8feaa5fd456f7a6e12ed85360d5df28f308faa4
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1283141
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/nvgpu_common.h b/drivers/gpu/nvgpu/nvgpu_common.h
index 8c159012..85b4a3df 100644
--- a/drivers/gpu/nvgpu/nvgpu_common.h
+++ b/drivers/gpu/nvgpu/nvgpu_common.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -18,6 +18,7 @@
 #define NVGPU_COMMON_H
 
 struct gk20a;
+struct class;
 
 int nvgpu_probe(struct gk20a *g,
                 const char *debugfs_symlink,