lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Mon, 3 Sep 2018 11:21:54 +0100
From:   Salil Mehta <>
To:     <>
CC:     <>, <>,
        <>, <>,
        <>, <>,
        <>, Yunsheng Lin <>
Subject: [PATCH net-next 09/11] net: hns3: Change the dst mac addr of loopback packet

From: Yunsheng Lin <>

Currently, the dst mac addr of loopback packet is the same as
the host' mac addr, the SSU component may loop back the packet
to host before the packet reaches mac or serdes, which will defect
the purpose of mac or serdes selftest.

This patch changes it by adding 0x1f to the last byte of dst mac

Signed-off-by: Yunsheng Lin <>
Signed-off-by: Peng Li <>
Signed-off-by: Salil Mehta <>
 drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 7143e39..dfce76e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -137,6 +137,7 @@ static void hns3_lp_setup_skb(struct sk_buff *skb)
 	packet = skb_put(skb, HNS3_NIC_LB_TEST_PACKET_SIZE);
 	memcpy(ethh->h_dest, ndev->dev_addr, ETH_ALEN);
+	ethh->h_dest[5] += 0x1f;
 	ethh->h_proto = htons(ETH_P_ARP);

Powered by blists - more mailing lists