netdev - [PATCHv8 2/2] Ifgroup read/write support in sysfs

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Date:	Thu,  6 Mar 2008 15:03:59 +0100
From:	Laszlo Attila Toth <panther@...abit.hu>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, Laszlo Attila Toth <panther@...abit.hu>
Subject: [PATCHv8 2/2] Ifgroup read/write support in sysfs

The ifgroup member of each net device can be read and changed in sysfs.

Author: Lutz Jaenicke <ljaenicke@...ominate.com>

Signed-off-by: Laszlo Attila Toth <panther@...abit.hu>
---
 net/core/net-sysfs.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 7635d3f..6652974 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -208,6 +208,20 @@ static ssize_t store_tx_queue_len(struct device *dev,
 	return netdev_store(dev, attr, buf, len, change_tx_queue_len);
 }
 
+NETDEVICE_SHOW(ifgroup, fmt_hex);
+
+static int change_ifgroup(struct net_device *net, unsigned long new_ifgroup)
+{
+	net->ifgroup = new_ifgroup;
+	return 0;
+}
+
+static ssize_t store_ifgroup(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t len)
+{
+	return netdev_store(dev, attr, buf, len, change_ifgroup);
+}
+
 static struct device_attribute net_class_attributes[] = {
 	__ATTR(addr_len, S_IRUGO, show_addr_len, NULL),
 	__ATTR(iflink, S_IRUGO, show_iflink, NULL),
@@ -224,6 +238,7 @@ static struct device_attribute net_class_attributes[] = {
 	__ATTR(flags, S_IRUGO | S_IWUSR, show_flags, store_flags),
 	__ATTR(tx_queue_len, S_IRUGO | S_IWUSR, show_tx_queue_len,
 	       store_tx_queue_len),
+	__ATTR(ifgroup, S_IRUGO | S_IWUSR, show_ifgroup, store_ifgroup),
 	{}
 };
 
-- 
1.5.2.5

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