From 13262c99aae43210ff036b16b048bbba95025d7b Mon Sep 17 00:00:00 2001
From: Vinod G <vinodg@nvidia.com>
Date: Fri, 23 Aug 2019 12:27:42 -0700
Subject: [PATCH] gpu: nvgpu: fix certc error in gr unit

Fix CERT INT31-C violation in gr unit
Integer conversion must be guaranteed not to result in lost or
misinterpreted data.

Fix unsigned long to unsigned int conversion properly.

Jira NVGPU-3872

Change-Id: I09c17610f939b0270b18c0aed60baca708f650ab
Signed-off-by: Vinod G <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2182391
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
---
 drivers/gpu/nvgpu/common/gr/global_ctx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/nvgpu/common/gr/global_ctx.c b/drivers/gpu/nvgpu/common/gr/global_ctx.c
index 31674b83b..17ecda458 100644
--- a/drivers/gpu/nvgpu/common/gr/global_ctx.c
+++ b/drivers/gpu/nvgpu/common/gr/global_ctx.c
@@ -312,7 +312,7 @@ bool nvgpu_gr_global_ctx_compare_golden_images(struct gk20a *g,
 			is_identical = false;
 		}
 	} else {
-		for( i = 0U; i < U32(size/sizeof(u32));
+		for( i = 0U; i < nvgpu_safe_cast_u64_to_u32(size/sizeof(u32));
 					i = nvgpu_safe_add_u32(i, 1U)) {
 			if (*(data1 + i) != *(data2 + i)) {
 				is_identical = false;