Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751153AbXANHxG (ORCPT ); Sun, 14 Jan 2007 02:53:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751154AbXANHxG (ORCPT ); Sun, 14 Jan 2007 02:53:06 -0500 Received: from mail.kroah.org ([69.55.234.183]:40009 "EHLO perch.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751153AbXANHxF (ORCPT ); Sun, 14 Jan 2007 02:53:05 -0500 Date: Sat, 13 Jan 2007 23:39:37 -0800 From: Greg KH To: Andrey Borzenkov Cc: Pierre Ossman , linux-kernel@vger.kernel.org Subject: Re: No more "device" symlinks for classes Message-ID: <20070114073937.GA10585@kroah.com> References: <45A97089.5090004@drzeus.cx> <20070114061104.1C53839AF7F@muan.mtu.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070114061104.1C53839AF7F@muan.mtu.ru> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2246 Lines: 58 On Sun, Jan 14, 2007 at 09:10:59AM +0300, Andrey Borzenkov wrote: > Pierre Ossman wrote: > > > Hi guys, > > > > I just wanted to know the rationale behind > > 99ef3ef8d5f2f5b5312627127ad63df27c0d0d05 (no more "device" symlink in > > class devices). I thought that was a rather convenient way of finding > > which physical device the class device was coupled to. > > > > Actually I wonder why those links still present even when I told system not > to create them? > > {pts/1}% grep DEPRE /boot/config > # CONFIG_SYSFS_DEPRECATED is not set > # CONFIG_PM_SYSFS_DEPRECATED is not set > {pts/1}% find /sys/class -name device > /sys/class/pcmcia_socket/pcmcia_socket2/device > /sys/class/pcmcia_socket/pcmcia_socket1/device > /sys/class/pcmcia_socket/pcmcia_socket0/device > /sys/class/usb_device/usbdev1.1/device > /sys/class/usb_host/usb_host1/device > /sys/class/scsi_disk/0:0:0:0/device > /sys/class/scsi_device/1:0:0:0/device > /sys/class/scsi_device/0:0:0:0/device > /sys/class/scsi_host/host1/device > /sys/class/scsi_host/host0/device > /sys/class/net/eth0/device > /sys/class/net/eth1/device > /sys/class/input/input1/ts0/device > /sys/class/input/input1/mouse0/device > /sys/class/input/input1/event1/device > /sys/class/input/input1/device > /sys/class/input/input0/event0/device > /sys/class/input/input0/device > {pts/1}% uname -a > Linux cooker 2.6.20-rc5-1avb #10 Sat Jan 13 14:05:34 MSK 2007 i686 Pentium > III (Coppermine) GNU/Linux Because I haven't finished converting all of the different usages of struct class_device to struct device just yet. When that happens, those links go away, as the /sys/class/foo_class/foo is a symlink itself into the /sys/devices/ tree. If you look in the -mm tree there is a patch for the network devices, and I have patches in my tree (but not -mm) for pcmcia, usb_host, usb_device, and input. These patches still need a bit of work before sending them on to their relative maintainers for acceptance. Hope this helps explain things, greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/