From e7a46b4d0839c2a3aa2e0ae0b145f293f6738498 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 27 May 2011 04:51:54 +0000 Subject: [PATCH] atm: expose ATM device index in sysfs 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 Reviewed-by: Eric Dumazet Tested-by: David Woodhouse Cc: stable@kernel.org Signed-off-by: David S. Miller --- net/atm/atm_sysfs.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/net/atm/atm_sysfs.c b/net/atm/atm_sysfs.c index f7fa67c78766..f49da5814bc3 100644 --- a/net/atm/atm_sysfs.c +++ b/net/atm/atm_sysfs.c @@ -59,6 +59,14 @@ 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) { @@ -99,6 +107,7 @@ 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); @@ -106,6 +115,7 @@ 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, -- 2.20.1