gpu: nvgpu: fix sparse warnings

Fix below sparse warnings :

warning: Using plain integer as NULL pointer
warning: symbol <variable/funcion> was not declared. Should it be static?
warning: Initializer entry defined twice

Also, remove dead functions

Bug 1573254

Change-Id: I29d71ecc01c841233cf6b26c9088ca8874773469
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/593363
Reviewed-by: Amit Sharma (SW-TEGRA) <amisharma@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <snikam@nvidia.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
index 2cc3d38d..676b493b 100644
--- a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
@@ -32,7 +32,7 @@
 #include "hw_pbdma_gk20a.h"
 
 unsigned int gk20a_debug_trace_cmdbuf;
-struct platform_device *gk20a_device;
+static struct platform_device *gk20a_device;
 
 struct gk20a_debug_output {
         void (*fn)(void *ctx, const char *str, size_t len);
@@ -89,7 +89,8 @@ static inline void gk20a_debug_write_to_seqfile(void *ctx, const char *str,
         seq_write((struct seq_file *)ctx, str, len);
 }
 
-void gk20a_debug_output(struct gk20a_debug_output *o, const char *fmt, ...)
+static void gk20a_debug_output(struct gk20a_debug_output *o,
+                                        const char *fmt, ...)
 {
         va_list args;
         int len;
@@ -159,7 +160,7 @@ static void gk20a_debug_show_channel(struct gk20a *g,
         gk20a_debug_output(o, "\n");
 }
 
-void gk20a_debug_show_dump(struct platform_device *pdev,
+static void gk20a_debug_show_dump(struct platform_device *pdev,
                            struct gk20a_debug_output *o)
 {
         struct gk20a_platform *platform = gk20a_get_platform(pdev);