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atm: expose ATM device index in sysfs

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commit e7a46b4d08 upstream.

It's currently exposed only through /proc which, besides requiring
screen-scraping, doesn't allow userspace to distinguish between two
identical ATM adapters with different ATM indexes.  The ATM device index
is required when using PPPoATM on a system with multiple ATM adapters.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dan Williams 2011-05-27 04:51:54 +00:00 committed by Greg Kroah-Hartman
parent a4401a63a8
commit 9e9c1e7d02
1 changed files with 10 additions and 0 deletions
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10
net/atm/atm_sysfs.c
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@ -57,6 +57,14 @@ static ssize_t show_atmaddress(struct device *cdev,
return pos - buf;
}
static ssize_t show_atmindex(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct atm_dev *adev = to_atm_dev(cdev);
return sprintf(buf, "%d\n", adev->number);
}
static ssize_t show_carrier(struct device *cdev,
struct device_attribute *attr, char *buf)
{
@ -97,6 +105,7 @@ static ssize_t show_link_rate(struct device *cdev,
static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL);
static DEVICE_ATTR(atmindex, S_IRUGO, show_atmindex, NULL);
static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL);
static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
@ -104,6 +113,7 @@ static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL);
static struct device_attribute *atm_attrs[] = {
&dev_attr_atmaddress,
&dev_attr_address,
&dev_attr_atmindex,
&dev_attr_carrier,
&dev_attr_type,
&dev_attr_link_rate,