From 7ed189de4456d26697f44b836f8002147a294c4b Mon Sep 17 00:00:00 2001
From: Seshendra Gadagottu <sgadagottu@nvidia.com>
Date: Fri, 7 Jun 2019 12:29:07 -0700
Subject: [PATCH] gpu: nvgpu: fix CERT INT30-C in common.gr.falcon

Fixed CERT C error by using nvgpu_gr_checksum_u32:
segments->boot_signature += bootimage[i]; -->
	segments->boot_signature = nvgpu_gr_checksum_u32(
				segments->boot_signature, bootimage[i]);

JIRA NVGPU-3622

Change-Id: I01de116ba2a8afacb8a93be7b88e356a48122c5a
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2132547
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
---
 drivers/gpu/nvgpu/common/gr/gr_falcon.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/nvgpu/common/gr/gr_falcon.c b/drivers/gpu/nvgpu/common/gr/gr_falcon.c
index 10ed4e83b..801309c3d 100644
--- a/drivers/gpu/nvgpu/common/gr/gr_falcon.c
+++ b/drivers/gpu/nvgpu/common/gr/gr_falcon.c
@@ -30,6 +30,7 @@
 #include <nvgpu/sizes.h>
 #include <nvgpu/mm.h>
 #include <nvgpu/acr.h>
+#include <nvgpu/gr/gr_utils.h>
 #ifdef CONFIG_NVGPU_LS_PMU
 #include <nvgpu/pmu/lsfm.h>
 #include <nvgpu/pmu/pmu_pg.h>
@@ -273,7 +274,8 @@ static int nvgpu_gr_falcon_copy_ctxsw_ucode_segments(
 	/* compute a "checksum" for the boot binary to detect its version */
 	segments->boot_signature = 0;
 	for (i = 0; i < segments->boot.size / sizeof(u32); i++) {
-		segments->boot_signature += bootimage[i];
+		segments->boot_signature = nvgpu_gr_checksum_u32(
+				segments->boot_signature, bootimage[i]);
 	}
 
 	return 0;