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authorDavid Woodhouse <dwmw2@infradead.org>2008-04-20 19:07:43 -0400
committerDavid S. Miller <davem@davemloft.net>2008-04-20 19:07:43 -0400
commit9d29672c64505f2d7f707701b829715705308a69 (patch)
tree8a62c799b03820930b756c0d867b480386cb2d2f /net/core/net-sysfs.c
parentf7d0e5a506396419eb731b6c6cd97ed23c9245c7 (diff)
[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 <dwmw2@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/net-sysfs.c')
-rw-r--r--net/core/net-sysfs.c2
1 files changed, 2 insertions, 0 deletions
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,
87 return ret; 87 return ret;
88} 88}
89 89
90NETDEVICE_SHOW(dev_id, fmt_hex);
90NETDEVICE_SHOW(addr_len, fmt_dec); 91NETDEVICE_SHOW(addr_len, fmt_dec);
91NETDEVICE_SHOW(iflink, fmt_dec); 92NETDEVICE_SHOW(iflink, fmt_dec);
92NETDEVICE_SHOW(ifindex, fmt_dec); 93NETDEVICE_SHOW(ifindex, fmt_dec);
@@ -210,6 +211,7 @@ static ssize_t store_tx_queue_len(struct device *dev,
210 211
211static struct device_attribute net_class_attributes[] = { 212static struct device_attribute net_class_attributes[] = {
212 __ATTR(addr_len, S_IRUGO, show_addr_len, NULL), 213 __ATTR(addr_len, S_IRUGO, show_addr_len, NULL),
214 __ATTR(dev_id, S_IRUGO, show_dev_id, NULL),
213 __ATTR(iflink, S_IRUGO, show_iflink, NULL), 215 __ATTR(iflink, S_IRUGO, show_iflink, NULL),
214 __ATTR(ifindex, S_IRUGO, show_ifindex, NULL), 216 __ATTR(ifindex, S_IRUGO, show_ifindex, NULL),
215 __ATTR(features, S_IRUGO, show_features, NULL), 217 __ATTR(features, S_IRUGO, show_features, NULL),