gpu: nvgpu: Enable signed versus non-signed errors

Fix a few trivial signed versus unsigned problems, and enable
compilation flag to treat them as errors.

Change-Id: I68cc327885ef1efb12db7f347a2699a65415f889
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1265291
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/Makefile.nvgpu b/drivers/gpu/nvgpu/Makefile.nvgpu
index 71077386..b6420dac 100644
--- a/drivers/gpu/nvgpu/Makefile.nvgpu
+++ b/drivers/gpu/nvgpu/Makefile.nvgpu
@@ -9,7 +9,9 @@ ccflags-y += -I../nvgpu/drivers/gpu/nvgpu/include
 ccflags-y += -Wno-multichar
 ccflags-y += -Werror
 ccflags-y += -Wno-error=cpp
-ccflags-y += -Wno-duplicate-decl-specifier
+ifeq ($(VERSION),4)
+ccflags-y += -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
+endif
 
 ifeq ($(CONFIG_ARCH_TEGRA_18x_SOC),y)
 ccflags-y += -I$(srctree)/../nvgpu-t18x/drivers/gpu/nvgpu