gpu: nvgpu: Delete obsolete WRITE_ONCE macro

Delete a version of WRITE_ONCE() that gk20a.h defines only for
kernels older than 3.18. We don't support kernels below 4.4.

JIRA NVGPU-38

Change-Id: I0af50936523fde9929c21eea0547b91dac4a0081
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1505175
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 0 insertions, 5 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 860f4d38..843a9e91 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -76,11 +76,6 @@ struct nvgpu_cpu_time_correlation_sample;
 #endif
 #include "ecc_gk20a.h"
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
-#define WRITE_ONCE(x, val) \
-                        x = val
-#endif
-
 struct page_alloc_chunk;
 
 /* PTIMER_REF_FREQ_HZ corresponds to a period of 32 nanoseconds.