linux-kernel - [PATCH 5.12 053/178] net: stmmac: dwmac1000: Fix extended MAC address registers definition

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Message-Id: <20210621154924.213084706@linuxfoundation.org>
Date:   Mon, 21 Jun 2021 18:14:27 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Jisheng Zhang <Jisheng.Zhang@...aptics.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 053/178] net: stmmac: dwmac1000: Fix extended MAC address registers definition

From: Jisheng Zhang <Jisheng.Zhang@...aptics.com>

[ Upstream commit 1adb20f0d496b2c61e9aa1f4761b8d71f93d258e ]

The register starts from 0x800 is the 16th MAC address register rather
than the first one.

Fixes: cffb13f4d6fb ("stmmac: extend mac addr reg and fix perfect filering")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@...aptics.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac1000.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
index b70d44ac0990..3c73453725f9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000.h
@@ -76,10 +76,10 @@ enum power_event {
 #define LPI_CTRL_STATUS_TLPIEN	0x00000001	/* Transmit LPI Entry */
 
 /* GMAC HW ADDR regs */
-#define GMAC_ADDR_HIGH(reg)	(((reg > 15) ? 0x00000800 : 0x00000040) + \
-				(reg * 8))
-#define GMAC_ADDR_LOW(reg)	(((reg > 15) ? 0x00000804 : 0x00000044) + \
-				(reg * 8))
+#define GMAC_ADDR_HIGH(reg)	((reg > 15) ? 0x00000800 + (reg - 16) * 8 : \
+				 0x00000040 + (reg * 8))
+#define GMAC_ADDR_LOW(reg)	((reg > 15) ? 0x00000804 + (reg - 16) * 8 : \
+				 0x00000044 + (reg * 8))
 #define GMAC_MAX_PERFECT_ADDRESSES	1
 
 #define GMAC_PCS_BASE		0x000000c0	/* PCS register base */
-- 
2.30.2