linux-kernel - [PATCH net-next 6/9] net: hns3: Use enums instead of magic number in hclge_is_special

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Date:   Sat, 19 May 2018 16:53:20 +0100
From:   Salil Mehta <salil.mehta@...wei.com>
To:     <davem@...emloft.net>
CC:     <salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
        <lipeng321@...wei.com>, <mehta.salil@...src.net>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>, Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 6/9] net: hns3: Use enums instead of magic number in hclge_is_special_opcode

From: Huazhong Tan <tanhuazhong@...wei.com>

This patch does bit of a clean-up by using already defined enums for
certain values in function hclge_is_special_opcode(). Below enums from
have been used as replacements for magic values:

enum hclge_opcode_type{
	<snip>
	HCLGE_OPC_STATS_64_BIT		= 0x0030,
	HCLGE_OPC_STATS_32_BIT		= 0x0031,
	HCLGE_OPC_STATS_MAC		= 0x0032,
	<snip>
};

Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
Signed-off-by: Peng Li <lipeng321@...wei.com>
Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
index fab7068..59fb0eb 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
@@ -190,7 +190,11 @@ static int hclge_cmd_csq_done(struct hclge_hw *hw)
 
 static bool hclge_is_special_opcode(u16 opcode)
 {
-	u16 spec_opcode[3] = {0x0030, 0x0031, 0x0032};
+	/* these commands have several descriptors,
+	 * and use the first one to save opcode and return value
+	 */
+	u16 spec_opcode[3] = {HCLGE_OPC_STATS_64_BIT,
+		HCLGE_OPC_STATS_32_BIT, HCLGE_OPC_STATS_MAC};
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(spec_opcode); i++) {
-- 
2.7.4