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Message-ID: <20190709023623.8358-2-biao.huang@mediatek.com>
Date: Tue, 9 Jul 2019 10:36:22 +0800
From: Biao Huang <biao.huang@...iatek.com>
To: <davem@...emloft.net>, Jose Abreu <joabreu@...opsys.com>,
<andrew@...n.ch>
CC: Giuseppe Cavallaro <peppe.cavallaro@...com>,
Alexandre Torgue <alexandre.torgue@...com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Matthias Brugger <matthias.bgg@...il.com>,
<netdev@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
<linux-mediatek@...ts.infradead.org>, <yt.shen@...iatek.com>,
<biao.huang@...iatek.com>, <jianguo.zhang@...iatek.com>,
<boon.leong.ong@...el.com>
Subject: [PATCH 1/2 net-next] net: stmmac: dwmac4: mac address array boudary violation issue
The mac address array size is GMAC_MAX_PERFECT_ADDRESSES,
so the 'reg' should be less than it, or will affect other registers.
Signed-off-by: Biao Huang <biao.huang@...iatek.com>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 8d9f6cda4012..776077ec1a23 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -454,7 +454,7 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
reg++;
}
- while (reg <= GMAC_MAX_PERFECT_ADDRESSES) {
+ while (reg < GMAC_MAX_PERFECT_ADDRESSES) {
writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
writel(0, ioaddr + GMAC_ADDR_LOW(reg));
reg++;
--
2.18.0
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