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Message-Id: <1356688180-3549-3-git-send-email-jiri@resnulli.us> Date: Fri, 28 Dec 2012 10:49:38 +0100 From: Jiri Pirko <jiri@...nulli.us> To: netdev@...r.kernel.org Cc: davem@...emloft.net, edumazet@...gle.com, bhutchings@...arflare.com, mirqus@...il.com, shemminger@...tta.com, greearb@...delatech.com, fbl@...hat.com, john.r.fastabend@...el.com Subject: [patch net-next 2/4] net: allow to change carrier via sysfs Make carrier writable Signed-off-by: Jiri Pirko <jiri@...nulli.us> --- net/core/net-sysfs.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 28c5f5a..29c884a 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -126,6 +126,19 @@ static ssize_t show_broadcast(struct device *dev, return -EINVAL; } +static int change_carrier(struct net_device *net, unsigned long new_carrier) +{ + if (!netif_running(net)) + return -EINVAL; + return dev_change_carrier(net, (bool) new_carrier); +} + +static ssize_t store_carrier(struct device *dev, struct device_attribute *attr, + const char *buf, size_t len) +{ + return netdev_store(dev, attr, buf, len, change_carrier); +} + static ssize_t show_carrier(struct device *dev, struct device_attribute *attr, char *buf) { @@ -331,7 +344,7 @@ static struct device_attribute net_class_attributes[] = { __ATTR(link_mode, S_IRUGO, show_link_mode, NULL), __ATTR(address, S_IRUGO, show_address, NULL), __ATTR(broadcast, S_IRUGO, show_broadcast, NULL), - __ATTR(carrier, S_IRUGO, show_carrier, NULL), + __ATTR(carrier, S_IRUGO | S_IWUSR, show_carrier, store_carrier), __ATTR(speed, S_IRUGO, show_speed, NULL), __ATTR(duplex, S_IRUGO, show_duplex, NULL), __ATTR(dormant, S_IRUGO, show_dormant, NULL), -- 1.8.0 -- 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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