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| author | Dan Williams <dcbw@redhat.com> | 2011-05-27 08:51:54 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-05-27 21:07:21 +0400 |
| commit | e7a46b4d0839c2a3aa2e0ae0b145f293f6738498 (patch) | |
| tree | ce38143b070fb4f5ed96e93bd5a8e3324016653e /net/atm/atm_sysfs.c | |
| parent | 58bf2dbccc5aca12df77e2328f478e239a68bdd5 (diff) | |
| download | linux-e7a46b4d0839c2a3aa2e0ae0b145f293f6738498.tar.xz | |
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 <dcbw@redhat.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: David Woodhouse <dwmw2@infradead.org>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm/atm_sysfs.c')
| -rw-r--r-- | net/atm/atm_sysfs.c | 10 |
1 files changed, 10 insertions, 0 deletions
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, |