gpu: nvgpu: fix compilation issues

compiling kernel with clang pointed out below issues in nvgpu.
Fixing them.

gr_gk20a.c:1185:12: error: stack frame size of 3152 bytes in
function 'gr_gk20a_setup_alpha_beta_tables'

cde_gk20a.c:1376:22: error: duplicate 'const' declaration
cde_gk20a.c:1377:22: error: duplicate 'const' declaration
cde_gk20a.c:1378:22: error: duplicate 'const' declaration

ctxsw_trace_gk20a.c:71:19: error: unused function 'ring_space'

platform_gk20a_tegra.c:55:19: error: unused function 'pmc_read'
platform_gk20a_tegra.c:60:20: error: unused function 'pmc_write'

bug 1745660

Change-Id: I8cd4383cb898307bbeb162ca00b3e20d04de2c90
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Reviewed-on: http://git-master/r/1150486
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/Makefile b/drivers/gpu/nvgpu/Makefile
index e140589a..7a439c10 100644
--- a/drivers/gpu/nvgpu/Makefile
+++ b/drivers/gpu/nvgpu/Makefile
@@ -8,6 +8,7 @@ ccflags-y += -I../kernel-nvgpu/include/uapi
 ccflags-y += -Wno-multichar
 ccflags-y += -Werror
 ccflags-y += -Wno-error=cpp
+ccflags-y += -Wno-duplicate-decl-specifier
 
 ifeq ($(CONFIG_ARCH_TEGRA_18x_SOC),y)
 ccflags-y += -I$(srctree)/../kernel-nvgpu-t18x/drivers/gpu/nvgpu