[dpdk-dev] [PATCH 4/4] net/hns3: fix unintended sign extension in dump operation

Wei Hu (Xavier) xavier.huwei at huawei.com
Tue Jun 9 10:44:17 CEST 2020


From: Hongbo Zheng <zhenghongbo3 at huawei.com>

There are coverity defects related "Unintended sign extension" in the
internal static function named hns3_get_regs_length used for dumping reg
operation.

This patch fixes them by replacing the data type of cmdq_lines,
common_lines, ring_lines and tqp_intr_lines with uint32_t in the inner
static function named hns3_get_regs_length of hns3 PMD driver.

Coverity issue: 349917, 349914
Fixes: 936eda25e8da ("net/hns3: support dump register")
Cc: stable at dpdk.org

Signed-off-by: Hongbo Zheng <zhenghongbo3 at huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei at huawei.com>
---
 drivers/net/hns3/hns3_regs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hns3/hns3_regs.c b/drivers/net/hns3/hns3_regs.c
index a3f2a51..63c8602 100644
--- a/drivers/net/hns3/hns3_regs.c
+++ b/drivers/net/hns3/hns3_regs.c
@@ -116,7 +116,7 @@ static int
 hns3_get_regs_length(struct hns3_hw *hw, uint32_t *length)
 {
 	struct hns3_adapter *hns = HNS3_DEV_HW_TO_ADAPTER(hw);
-	int cmdq_lines, common_lines, ring_lines, tqp_intr_lines;
+	uint32_t cmdq_lines, common_lines, ring_lines, tqp_intr_lines;
 	uint32_t regs_num_32_bit, regs_num_64_bit;
 	uint32_t len;
 	int ret;
-- 
2.7.4



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