From patchwork Fri Aug 30 16:08:44 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Bj=C3=B8rn_Mork?= X-Patchwork-Id: 2852140 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B4ABEC0AB5 for ; Fri, 30 Aug 2013 16:11:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B4AC1205CA for ; Fri, 30 Aug 2013 16:11:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 90DF2205C5 for ; Fri, 30 Aug 2013 16:11:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756919Ab3H3QLD (ORCPT ); Fri, 30 Aug 2013 12:11:03 -0400 Received: from canardo.mork.no ([148.122.252.1]:55525 "EHLO canardo.mork.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756060Ab3H3QLB (ORCPT ); Fri, 30 Aug 2013 12:11:01 -0400 Received: from nemi.mork.no (nemi.mork.no [IPv6:2001:4620:9:2:e8b:fdff:fe08:971]) (authenticated bits=0) by canardo.mork.no (8.14.4/8.14.4) with ESMTP id r7UGACNP022263 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Fri, 30 Aug 2013 18:10:12 +0200 Received: from bjorn by nemi.mork.no with local (Exim 4.80) (envelope-from ) id 1VFRG0-00070F-NN; Fri, 30 Aug 2013 18:09:08 +0200 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= To: netdev@vger.kernel.org Cc: =?UTF-8?q?Bj=C3=B8rn=20Mork?= , Stephen Hemminger , Patrick McHardy , Jiri Pirko , "John W. Linville" , linux-wireless@vger.kernel.org, Jouni Malinen , libertas-dev@lists.infradead.org, Greg Kroah-Hartman , devel@driverdev.osuosl.org, Forest Bond Subject: [PATCH v2 net-next 1/9] net: etherdevice: add address inherit helper Date: Fri, 30 Aug 2013 18:08:44 +0200 Message-Id: <1377878932-26881-2-git-send-email-bjorn@mork.no> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1377878932-26881-1-git-send-email-bjorn@mork.no> References: <1377878932-26881-1-git-send-email-bjorn@mork.no> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.97.8 at canardo X-Virus-Status: Clean Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-9.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some etherdevices inherit their address from a parent or master device. The addr_assign_type should be updated along with the address in these cases. Adding a helper function to simplify this. Signed-off-by: Bjørn Mork --- include/linux/etherdevice.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index c623861..d8b5124 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -199,6 +199,21 @@ static inline void eth_hw_addr_random(struct net_device *dev) } /** + * eth_hw_addr_inherit - Copy dev_addr from another net_device + * @dst: pointer to net_device to copy dev_addr to + * @src: pointer to net_device to copy dev_addr from + * + * Copy the Ethernet address from one net_device to another along with + * the address attributes (addr_assign_type). + */ +static inline void eth_hw_addr_inherit(struct net_device *dst, + struct net_device *src) +{ + dst->addr_assign_type = src->addr_assign_type; + memcpy(dst->dev_addr, src->dev_addr, ETH_ALEN); +} + +/** * compare_ether_addr - Compare two Ethernet addresses * @addr1: Pointer to a six-byte array containing the Ethernet address * @addr2: Pointer other six-byte array containing the Ethernet address