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Date: Tue, 06 May 2014 22:24:49 -0700 From: Florian Fainelli <f.fainelli@...il.com> To: David Decotigny <decot@...glers.com>, "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Eric Dumazet <edumazet@...gle.com>, "Eric W. Biederman" <ebiederm@...ssion.com>, Weilong Chen <chenweilong@...wei.com>, Jiri Pirko <jiri@...nulli.us>, Michael Dalton <mwdalton@...gle.com>, Al Viro <viro@...IV.linux.org.uk>, Tejun Heo <tj@...nel.org> Subject: Re: [PATCH v1] net-sysfs: expose permanent hardware address in sysfs Le 05/05/2014 20:34, David Decotigny a écrit : > Tested: > grep . /sys/class/net/*/*addr* Please also include the relevant sysfs documentation changes in Documentation/ABI/testing/sysfs-class-net. Thanks! > > Signed-off-by: David Decotigny <decot@...glers.com> > --- > net/core/net-sysfs.c | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) > > diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c > index 1cac29e..bf57024 100644 > --- a/net/core/net-sysfs.c > +++ b/net/core/net-sysfs.c > @@ -127,6 +127,20 @@ static ssize_t address_show(struct device *dev, struct device_attribute *attr, > } > static DEVICE_ATTR_RO(address); > > +static ssize_t perm_addr_show(struct device *dev, struct device_attribute *attr, > + char *buf) > +{ > + struct net_device *net = to_net_dev(dev); > + ssize_t ret = -EINVAL; > + > + read_lock(&dev_base_lock); > + if (dev_isalive(net)) > + ret = sysfs_format_mac(buf, net->perm_addr, net->addr_len); > + read_unlock(&dev_base_lock); > + return ret; > +} > +static DEVICE_ATTR_RO(perm_addr); > + > static ssize_t broadcast_show(struct device *dev, > struct device_attribute *attr, char *buf) > { > @@ -391,6 +405,7 @@ static struct attribute *net_class_attrs[] = { > &dev_attr_addr_len.attr, > &dev_attr_link_mode.attr, > &dev_attr_address.attr, > + &dev_attr_perm_addr.attr, > &dev_attr_broadcast.attr, > &dev_attr_speed.attr, > &dev_attr_duplex.attr, > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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