From: Rocco Yue <rocco.yue@mediatek.com>
To: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
David Ahern <dsahern@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Felix Fietkau <nbd@nbd.name>, John Crispin <john@phrozen.org>,
Sean Wang <sean.wang@mediatek.com>,
Mark Lee <Mark-MC.Lee@mediatek.com>
Cc: <netdev@vger.kernel.org>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>, <bpf@vger.kernel.org>,
<wsd_upstream@mediatek.com>, <chao.song@mediatek.com>,
<zhuoliang.zhang@mediatek.com>, <kuohong.wang@mediatek.com>,
Rocco Yue <rocco.yue@mediatek.com>
Subject: [PATCH 2/4] net: ipv6: don't generate link local address on PUREIP device
Date: Wed, 23 Jun 2021 19:34:50 +0800 [thread overview]
Message-ID: <20210623113452.5671-2-rocco.yue@mediatek.com> (raw)
In-Reply-To: <20210623113452.5671-1-rocco.yue@mediatek.com>
PUREIP device such as ccmni does not need kernel to generate
ipv6 link-local address in any addr_gen_mode, generally, it
shall use the IPv6 Interface Identifier, as provided by the
GGSN, to create its IPv6 link-ocal Unicast Address.
Signed-off-by: Rocco Yue <rocco.yue@mediatek.com>
---
net/ipv6/addrconf.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 701eb82acd1c..1bfa7eca1314 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3339,7 +3339,8 @@ static void addrconf_dev_config(struct net_device *dev)
(dev->type != ARPHRD_IPGRE) &&
(dev->type != ARPHRD_TUNNEL) &&
(dev->type != ARPHRD_NONE) &&
- (dev->type != ARPHRD_RAWIP)) {
+ (dev->type != ARPHRD_RAWIP) &&
+ (dev->type != ARPHRD_PUREIP)) {
/* Alas, we support only Ethernet autoconfiguration. */
idev = __in6_dev_get(dev);
if (!IS_ERR_OR_NULL(idev) && dev->flags & IFF_UP &&
@@ -3352,6 +3353,12 @@ static void addrconf_dev_config(struct net_device *dev)
if (IS_ERR(idev))
return;
+ /* this device type doesn't need to generate
+ * link-local address in any addr_gen_mode
+ */
+ if (dev->type == ARPHRD_PUREIP)
+ return;
+
/* this device type has no EUI support */
if (dev->type == ARPHRD_NONE &&
idev->cnf.addr_gen_mode == IN6_ADDR_GEN_MODE_EUI64)
--
2.18.0
next prev parent reply other threads:[~2021-06-23 11:49 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-23 11:34 [PATCH 1/4] net: if_arp: add ARPHRD_PUREIP type Rocco Yue
2021-06-23 11:34 ` Rocco Yue [this message]
2021-06-23 11:34 ` [PATCH 3/4] net: dev_is_mac_header_xmit() return false for ARPHRD_PUREIP Rocco Yue
2021-06-23 11:34 ` [PATCH 4/4] drivers: net: mediatek: initial implementation of ccmni Rocco Yue
2021-06-23 17:25 ` Greg KH
2021-06-23 17:31 ` Greg KH
2021-06-24 11:53 ` [PATCH 1/4] net: if_arp: add ARPHRD_PUREIP type Rocco Yue
2021-06-24 12:23 ` Greg KH
2021-06-24 15:55 ` [PATCH 4/4] drivers: net: mediatek: initial implementation of ccmni Rocco Yue
2021-06-24 16:51 ` Greg KH
2021-06-28 7:18 ` Rocco Yue
2021-06-28 9:30 ` Greg KH
2021-06-23 17:19 ` [PATCH 1/4] net: if_arp: add ARPHRD_PUREIP type Greg KH
2021-06-24 3:33 ` Rocco Yue
2021-06-24 5:15 ` David Ahern
2021-06-24 5:31 ` Rocco Yue
2021-06-24 5:29 ` Greg KH
2021-06-24 6:13 ` Rocco Yue
2021-06-24 9:04 ` Greg KH
2021-06-24 12:24 ` Rocco Yue
2021-06-24 13:06 ` Greg KH
2021-06-25 6:01 ` Rocco Yue
2021-06-24 16:14 ` Dan Williams
2021-06-25 6:04 ` Rocco Yue
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