From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 902A72EA475; Tue, 22 Jul 2025 13:55:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753192502; cv=none; b=c6IbiG2JIt3JvxRH9FvLh4h1m8lpiRzYfRklgaXEUzAxr/okETK++nhOFgcU/JpEXe2ke366Ape/paLMq4bziA3EVxjIBIL/flHTbTlgm0XuKKhTHKS/PLWKU9iiU/V2ubGdkbPiqqip7EgWYC9HCWtEBNREBAVHUJ9eIfefRwc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753192502; c=relaxed/simple; bh=TRub+0L+zp90wtzTLoLKLobOCTNt27kh5VRUMGwkCbU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bJJIwudC0bNuYvPdsBfZgw6HYEwmzUZR5fYbvKCPekIHRpLlIavU5e+jtNk7UDyTWW+FPQs7BPBSCTp9Dq7EpUAi7Ug6RmICJQ31YiHL3WjpnPzt/dmb1IloLiWveRJyDsQjqNPady/GyOYKnmpQsQ/ApMv65riVMTFO+9OoVCg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TjHF91RT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="TjHF91RT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F4018C4CEEB; Tue, 22 Jul 2025 13:55:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1753192502; bh=TRub+0L+zp90wtzTLoLKLobOCTNt27kh5VRUMGwkCbU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TjHF91RT/BCiGq84TL+x97w/WklD5KOTa9TOzObYiBKg8HqmVw5+FyaunaXMjyxH0 +SaiKkb8WUgr2O8Pa/fEe9qxSoQPuQ3bL4YBD6B4tb8CqE0bSwoyYjXH4+UgyBWc+w OcRkugmwYDLyiEjQ4UOd7NV5UoSNRiMYDLSZ8n9M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Cathy Avery , Li Tian , Xin Long , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.6 085/111] hv_netvsc: Set VF priv_flags to IFF_NO_ADDRCONF before open to prevent IPv6 addrconf Date: Tue, 22 Jul 2025 15:45:00 +0200 Message-ID: <20250722134336.567705240@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250722134333.375479548@linuxfoundation.org> References: <20250722134333.375479548@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Li Tian [ Upstream commit d7501e076d859d2f381d57bd984ff6db13172727 ] Set an additional flag IFF_NO_ADDRCONF to prevent ipv6 addrconf. Commit under Fixes added a new flag change that was not made to hv_netvsc resulting in the VF being assinged an IPv6. Fixes: 8a321cf7becc ("net: add IFF_NO_ADDRCONF and use it in bonding to prevent ipv6 addrconf") Suggested-by: Cathy Avery Signed-off-by: Li Tian Reviewed-by: Xin Long Link: https://patch.msgid.link/20250716002607.4927-1-litian@redhat.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- 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 ce6ac26131b34..f33f9167ba6b6 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2313,8 +2313,11 @@ 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; } -- 2.39.5