net: hns3: modify magic number in hclge_dbg_dump_ncl_config

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

--------------------------------------------

This patch modifies a magic number in hclge_dbg_dump_ncl_config,
which can improve the readability of the code.
Signed-off-by: NYufeng Mo <moyufeng@huawei.com>
Signed-off-by: Nshenhao <shenhao21@huawei.com>
Reviewed-by: NZhong Zhaohui <zhongzhaohui@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c

@@ -1270,6 +1270,7 @@ static void hclge_dbg_dump_ncl_config(struct hclge_dev *hdev,
 {
 #define HCLGE_MAX_NCL_CONFIG_OFFSET	16384
 #define HCLGE_NCL_CONFIG_LENGTH_IN_EACH_CMD	(20 + 24 * 4)
+#define HCLGE_NCL_CONFIG_PARAM_NUM	2
 
 	struct hclge_desc desc[HCLGE_CMD_NCL_CONFIG_BD_NUM];
 	int bd_num = HCLGE_CMD_NCL_CONFIG_BD_NUM;
@@ -1279,7 +1280,7 @@ static void hclge_dbg_dump_ncl_config(struct hclge_dev *hdev,
 	int ret;
 
 	ret = sscanf(cmd_buf, "%x %x", &offset, &length);
-	if (ret != 2) {
+	if (ret != HCLGE_NCL_CONFIG_PARAM_NUM) {
 		dev_err(&hdev->pdev->dev,
 			"Too few parameters, num = %d.\n", ret);
 		return;