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Miller" , Sasha Levin Subject: [PATCH AUTOSEL for 3.18 15/53] net: ipv6: send unsolicited NA on admin up Thread-Topic: [PATCH AUTOSEL for 3.18 15/53] net: ipv6: send unsolicited NA on admin up Thread-Index: AQHTtprCSUBWk7LdykmfQn3freIutw== Date: Thu, 8 Mar 2018 05:03:13 +0000 Message-ID: <20180308050230.8876-15-alexander.levin@microsoft.com> References: <20180308050230.8876-1-alexander.levin@microsoft.com> In-Reply-To: <20180308050230.8876-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0871;7:fcR5U9xTdUOeHXMkaJTQ7av/9ZCJ1xE1E+uXkdFcMp3bEFJedO7H0kpba4smfQtGAmHJPnnU8KKsFADbkQbo1JiAYpopZqqot8E/OK7etjdXRF6F+iH+UYdUqfGwe2IFSHJSeDNealC1TgOQ6L6W0HjnCwqU7d2Xs64LwSJKn85YoEX9rce9CrE89QHq4yOfuOvPOdUzP/N4XcFRwjKwJHb0TXDBkfsV6P/AjPN2WyITWgPooAwOi0O4Kc1wXkaM;20:MwDfBefiqelf7Zny/lNuyKhGtV1jOkbfjFP3jaTNs7TGM5QzcO79cNiwv8D5CjbEaPQ0avsomGJ3gdg5evy+Ypaau2tw9bsJLgr56C5SvbCEJ+k8ulMKeWkC6FBpkTVMx1Mkrygz/g4iZngq43TIKPDRLr4f3ZEncTwDDX/3Af4= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 171ab953-4bbf-4ccf-3f66-08d584b2a5a6 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0871; x-ms-traffictypediagnostic: DM5PR2101MB0871: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(61425038)(6040501)(2401047)(5005006)(8121501046)(3002001)(10201501046)(3231220)(944501244)(52105095)(93006095)(93001095)(6055026)(61426038)(61427038)(6041288)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(20161123558120)(20161123564045)(6072148)(201708071742011);SRVR:DM5PR2101MB0871;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB0871; x-forefront-prvs: 060503E79B x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(39380400002)(39860400002)(346002)(376002)(366004)(396003)(189003)(199004)(7736002)(14454004)(3660700001)(68736007)(305945005)(2900100001)(10090500001)(66066001)(97736004)(81166006)(105586002)(10290500003)(8676002)(72206003)(8936002)(102836004)(86612001)(53936002)(6512007)(6506007)(110136005)(107886003)(478600001)(54906003)(106356001)(81156014)(25786009)(4326008)(26005)(316002)(186003)(5250100002)(2501003)(575784001)(2906002)(86362001)(6666003)(3280700002)(22452003)(36756003)(2950100002)(1076002)(6486002)(76176011)(5660300001)(99286004)(6436002)(3846002)(6116002)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB0871;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;MX:1;A:1;LANG:en; x-microsoft-antispam-message-info: 0CEk08bQh3EJG7R29M3E7bXZ7ZnWdPOUe41CpaaT9iZhcqWCnGEP+5MYNXKJRD8FV0K1iAg8EMKkbjU4bMsLOJ1v8HOy0vJkk5eFQCZQTnfl6ZMGawsFWUVqIdmaFSWX2X1QAq95qk/nqa8/QlSxMwSk+zR60gNRnmHg/OF9l8A6T7DzWia7rVtvgeY7bBi865DsdFEZVBcRrYZrCwNTMFKXYfW74wtrMX7+kruFIYXtktAVhpSzTLH9pD3qZLPVAN0ix9XR0fepPzItZdvOvBAj889SgTt4lthg2b38UyB70QmYSkNsm+n1PW41aiFeABhmCEHQPWgk1CHG6tOH0A== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 171ab953-4bbf-4ccf-3f66-08d584b2a5a6 X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Mar 2018 05:03:13.2193 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0871 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: David Ahern [ Upstream commit 4a6e3c5def13c91adf2acc613837001f09af3baa ] ndisc_notify is the ipv6 equivalent to arp_notify. When arp_notify is set to 1, gratuitous arp requests are sent when the device is brought up. The same is expected when ndisc_notify is set to 1 (per ndisc_notify in Documentation/networking/ip-sysctl.txt). The NA is not sent on NETDEV_UP event; add it. Fixes: 5cb04436eef6 ("ipv6: add knob to send unsolicited ND on link-layer a= ddress change") Signed-off-by: David Ahern Acked-by: Hannes Frederic Sowa Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/ipv6/ndisc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index a46c50423aec..2e9e0af9e759 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1646,6 +1646,8 @@ static int ndisc_netdev_event(struct notifier_block *= this, unsigned long event, case NETDEV_CHANGEADDR: neigh_changeaddr(&nd_tbl, dev); fib6_run_gc(0, net, false); + /* fallthrough */ + case NETDEV_UP: idev =3D in6_dev_get(dev); if (!idev) break; --=20 2.14.1