From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E39141A0B0E for ; Fri, 11 Jul 2025 04:06:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752206801; cv=none; b=s1QS6z8T7YjKiGB1xCv/p+93sklp0EbB7VRxV1+pZGKmTm8D78IuES8KzHZmcBFLL8mrK2rMRZOKC79rY9+fmvPw0bFHuGZbaE7mRWC36oYa69KQI3G6kO26S7fnuk/Fkp7UBRVby7//W6jfQXzd6k3TmZ+wCSycfWNydvO8m48= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752206801; c=relaxed/simple; bh=SDiFjXIEY2k6EMivsiiZ56S4N+J1jLx/2bscGVPuYxc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tV8CNdWINtW9zQn7+qwATcqh8Wog8AdNtd7iQVMtnfRCuXgvzCrA/bCpNY2kP4WLPx7Z+XTM3cbZgCEYkWvmhD9434LaRnrn8z/QCHnidmHVXPXgyclVjTp9H3ciyBri/7wBVhlL4RizqUhQL02/BQHV3ACwPXj38D1O6WXMx60= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=TTgc8cgm; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="TTgc8cgm" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752206798; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lJknBKO1gBSr73F5TeVtWsmcBQA8Lx7LIgsYwMB0ZDw=; b=TTgc8cgmrUZhEurhvqo44h8+ETwgbl/mheZW/GkHqruooy4aNZcxeuVsReJJbLud2b0uGW V4oXibCpwXuOs8dNBXqF9nAaWFsoebJAaNu8OQENHElKi3ZhDRA5ZQFS9zPV2Wxc2KTRdu CKU9J51fD95g3coI2hushDtTmC2bHzU= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-80-k7gJBKogMC-KM-ws_bsRqA-1; Fri, 11 Jul 2025 00:06:34 -0400 X-MC-Unique: k7gJBKogMC-KM-ws_bsRqA-1 X-Mimecast-MFC-AGG-ID: k7gJBKogMC-KM-ws_bsRqA_1752206792 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id D0F8D1800366; Fri, 11 Jul 2025 04:06:32 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.72.116.32]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 90AA41977029; Fri, 11 Jul 2025 04:06:26 +0000 (UTC) From: Li Tian To: netdev@vger.kernel.org, linux-hyperv@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Haiyang Zhang , Dexuan Cui Subject: [PATCH v2] hv_netvsc: Set VF priv_flags to IFF_NO_ADDRCONF before open to prevent IPv6 addrconf Date: Fri, 11 Jul 2025 12:06:23 +0800 Message-ID: <20250711040623.12605-1-litian@redhat.com> In-Reply-To: <20250710024603.10162-1-litian@redhat.com> References: <20250710024603.10162-1-litian@redhat.com> Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Set an additional flag IFF_NO_ADDRCONF to prevent ipv6 addrconf. Commit 8a321cf7becc6c065ae595b837b826a2a81036b9 ("net: add IFF_NO_ADDRCONF and use it in bonding to prevent ipv6 addrconf") This new flag change was not made to hv_netvsc resulting in the VF being assinged an IPv6. Suggested-by: Cathy Avery Signed-off-by: Li Tian --- drivers/net/hyperv/netvsc_drv.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index c41a025c66f0..8be9bce66a4e 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2317,8 +2317,11 @@ static int netvsc_prepare_bonding(struct net_device *vf_netdev) if (!ndev) return NOTIFY_DONE; - /* set slave flag before open to prevent IPv6 addrconf */ + /* Set slave flag and no addrconf flag before open + * to prevent IPv6 addrconf. + */ vf_netdev->flags |= IFF_SLAVE; + vf_netdev->priv_flags |= IFF_NO_ADDRCONF; return NOTIFY_DONE; } -- 2.50.0