netdev - [PATCH net-next 2/3] r8169: use macro FIELD_SIZEOF in definition of FW_OPCODE

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Message-ID: <f1e304a7-d8e1-c4c9-9c0a-d17ffcfae603@gmail.com>
Date:   Wed, 20 Nov 2019 21:07:41 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        David Miller <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net-next 2/3] r8169: use macro FIELD_SIZEOF in definition of
 FW_OPCODE_SIZE

Using macro FIELD_SIZEOF makes this define easier understandable.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/ethernet/realtek/r8169_firmware.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/r8169_firmware.c b/drivers/net/ethernet/realtek/r8169_firmware.c
index 522415084..927bb46b3 100644
--- a/drivers/net/ethernet/realtek/r8169_firmware.c
+++ b/drivers/net/ethernet/realtek/r8169_firmware.c
@@ -37,7 +37,7 @@ struct fw_info {
 	u8	chksum;
 } __packed;
 
-#define FW_OPCODE_SIZE	sizeof(typeof(*((struct rtl_fw_phy_action *)0)->code))
+#define FW_OPCODE_SIZE FIELD_SIZEOF(struct rtl_fw_phy_action, code[0])
 
 static bool rtl_fw_format_ok(struct rtl_fw *rtl_fw)
 {
-- 
2.24.0