From 9d29672c64505f2d7f707701b829715705308a69 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 20 Apr 2008 16:07:43 -0700 Subject: [PATCH] [NET]: Expose netdevice dev_id through sysfs Expose dev_id to userspace, because it helps to disambiguate between interfaces where the MAC address is unique. This should allow us to simplify the handling of persistent naming for S390 network devices in udev -- because it can depend on a simple attribute of the device like the other match criteria, rather than having a special case for SUBSYSTEMS=="ccwgroup". Signed-off-by: David Woodhouse Signed-off-by: David S. Miller --- net/core/net-sysfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 7635d3f72723..4e7b847347f7 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -87,6 +87,7 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr, return ret; } +NETDEVICE_SHOW(dev_id, fmt_hex); NETDEVICE_SHOW(addr_len, fmt_dec); NETDEVICE_SHOW(iflink, fmt_dec); NETDEVICE_SHOW(ifindex, fmt_dec); @@ -210,6 +211,7 @@ static ssize_t store_tx_queue_len(struct device *dev, static struct device_attribute net_class_attributes[] = { __ATTR(addr_len, S_IRUGO, show_addr_len, NULL), + __ATTR(dev_id, S_IRUGO, show_dev_id, NULL), __ATTR(iflink, S_IRUGO, show_iflink, NULL), __ATTR(ifindex, S_IRUGO, show_ifindex, NULL), __ATTR(features, S_IRUGO, show_features, NULL), -- 2.20.1