gpu: nvgpu: protect stack_trace with config

We use struct stack_trace in struct channel_gk20a_ref_action
But since channel_gk20a_ref_action is needed only if
GK20A_CHANNEL_REFCOUNT_TRACKING is set, protect it with that config

Jira NVGPU-259

Change-Id: I6b2d6f470bf924bb1ddfd31ba9968b56c63c2372
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1576929
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.h b/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
index e4cce101..9c0d22d2 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
@@ -161,6 +161,7 @@ enum channel_gk20a_ref_action_type {
         channel_gk20a_ref_action_put
 };
 
+#if GK20A_CHANNEL_REFCOUNT_TRACKING
 struct channel_gk20a_ref_action {
         enum channel_gk20a_ref_action_type type;
         s64 timestamp_ms;
@@ -171,6 +172,7 @@ struct channel_gk20a_ref_action {
         struct stack_trace trace;
         unsigned long trace_entries[GK20A_CHANNEL_REFCOUNT_TRACKING_STACKLEN];
 };
+#endif
 
 /* this is the priv element of struct nvhost_channel */
 struct channel_gk20a {