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net: remove useless comments in net/core/dev.c 

The code itself can explain what it is doing, no need these comments.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amerigo Wang 2011-03-22 01:59:47 +00:00 committed by David S. Miller
parent e0bccd315d
commit 3b261ade42
1 changed files with 0 additions and 54 deletions
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54
net/core/dev.c
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@ -1140,9 +1140,6 @@ static int __dev_open(struct net_device *dev)
ASSERT_RTNL(); ASSERT_RTNL();
/*
* Is it even present?
*/
if (!netif_device_present(dev)) if (!netif_device_present(dev))
return -ENODEV; return -ENODEV;
@ -1151,9 +1148,6 @@ static int __dev_open(struct net_device *dev)
if (ret) if (ret)
return ret; return ret;
/*
* Call device private open method
*/
set_bit(__LINK_STATE_START, &dev->state); set_bit(__LINK_STATE_START, &dev->state);
if (ops->ndo_validate_addr) if (ops->ndo_validate_addr)
@ -1162,31 +1156,12 @@ static int __dev_open(struct net_device *dev)
if (!ret && ops->ndo_open) if (!ret && ops->ndo_open)
ret = ops->ndo_open(dev); ret = ops->ndo_open(dev);
/*
* If it went open OK then:
*/
if (ret) if (ret)
clear_bit(__LINK_STATE_START, &dev->state); clear_bit(__LINK_STATE_START, &dev->state);
else { else {
/*
* Set the flags.
*/
dev->flags |= IFF_UP; dev->flags |= IFF_UP;
/*
* Enable NET_DMA
*/
net_dmaengine_get(); net_dmaengine_get();
/*
* Initialize multicasting status
*/
dev_set_rx_mode(dev); dev_set_rx_mode(dev);
/*
* Wakeup transmit queue engine
*/
dev_activate(dev); dev_activate(dev);
} }
@ -1209,22 +1184,13 @@ int dev_open(struct net_device *dev)
{ {
int ret; int ret;
/*
* Is it already up?
*/
if (dev->flags & IFF_UP) if (dev->flags & IFF_UP)
return 0; return 0;
/*
* Open device
*/
ret = __dev_open(dev); ret = __dev_open(dev);
if (ret < 0) if (ret < 0)
return ret; return ret;
/*
* ... and announce new interface.
*/
rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING); rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
call_netdevice_notifiers(NETDEV_UP, dev); call_netdevice_notifiers(NETDEV_UP, dev);
@ -1240,10 +1206,6 @@ static int __dev_close_many(struct list_head *head)
might_sleep(); might_sleep();
list_for_each_entry(dev, head, unreg_list) { list_for_each_entry(dev, head, unreg_list) {
/*
* Tell people we are going down, so that they can
* prepare to death, when device is still operating.
*/
call_netdevice_notifiers(NETDEV_GOING_DOWN, dev); call_netdevice_notifiers(NETDEV_GOING_DOWN, dev);
clear_bit(__LINK_STATE_START, &dev->state); clear_bit(__LINK_STATE_START, &dev->state);
@ -1272,15 +1234,7 @@ static int __dev_close_many(struct list_head *head)
if (ops->ndo_stop) if (ops->ndo_stop)
ops->ndo_stop(dev); ops->ndo_stop(dev);
/*
* Device is now down.
*/
dev->flags &= ~IFF_UP; dev->flags &= ~IFF_UP;
/*
* Shutdown NET_DMA
*/
net_dmaengine_put(); net_dmaengine_put();
} }
@ -1309,9 +1263,6 @@ static int dev_close_many(struct list_head *head)
__dev_close_many(head); __dev_close_many(head);
/*
* Tell people we are down
*/
list_for_each_entry(dev, head, unreg_list) { list_for_each_entry(dev, head, unreg_list) {
rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING); rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
call_netdevice_notifiers(NETDEV_DOWN, dev); call_netdevice_notifiers(NETDEV_DOWN, dev);
@ -1371,11 +1322,6 @@ EXPORT_SYMBOL(dev_disable_lro);
static int dev_boot_phase = 1; static int dev_boot_phase = 1;
/*
* Device change register/unregister. These are not inline or static
* as we export them to the world.
*/
/** /**
* register_netdevice_notifier - register a network notifier block * register_netdevice_notifier - register a network notifier block
* @nb: notifier * @nb: notifier