From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olaf Hering Subject: [PATCH] keep track of network interface renaming Date: Tue, 15 Aug 2006 18:56:35 +0200 Message-ID: <20060815165635.GA31291@aepfle.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Received: from natklopstock.rzone.de ([81.169.145.174]:40856 "EHLO natklopstock.rzone.de") by vger.kernel.org with ESMTP id S1752118AbWHOQ4m (ORCPT ); Tue, 15 Aug 2006 12:56:42 -0400 Received: from ibook.aepfle.de (p5493D3E2.dip.t-dialin.net [84.147.211.226]) by post.webmailer.de (8.13.6/8.13.6) with ESMTP id k7FGucbQ029956 for ; Tue, 15 Aug 2006 18:56:39 +0200 (MEST) To: netdev@vger.kernel.org Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Keep track about which network interface names were renamed after the network device driver printed its banner. Previous kernel names will be reused when new interfaces get registerd. Recent udev scripts implement a stable kernel device name for network interfaces. This printk avoids confusion about what network hardware maps to what kernel interface in later driver or network stack messages. Signed-off-by: Olaf Hering --- net/core/dev.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) Index: linux-2.6.18-rc4/net/core/dev.c =================================================================== --- linux-2.6.18-rc4.orig/net/core/dev.c +++ linux-2.6.18-rc4/net/core/dev.c @@ -738,8 +738,11 @@ int dev_change_name(struct net_device *d } else if (__dev_get_by_name(newname)) return -EEXIST; - else + else { + if (strcmp(newname, dev->name)) + printk(KERN_INFO "%s renamed to %s\n", dev->name, newname); strlcpy(dev->name, newname, IFNAMSIZ); + } err = class_device_rename(&dev->class_dev, dev->name); if (!err) {