xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nl80211: prepare for non-netdev wireless devs

Browse Source 
In order to support a P2P device abstraction and
Bluetooth high-speed AMPs, we need to have a way
to identify virtual interfaces that don't have a
netdev associated.

Do this by adding a NL80211_ATTR_WDEV attribute
to identify a wdev which may or may not also be
a netdev.

To simplify things, use a 64-bit value with the
high 32 bits being the wiphy index for this new
wdev identifier in the nl80211 API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-06-15 14:33:17 +02:00
parent f72b85b8eb
commit 89a54e48b9
7 changed files with 144 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
net/wireless/core.c
View File

@@ -176,7 +176,7 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
if (!(rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK))
return -EOPNOTSUPP;
list_for_each_entry(wdev, &rdev->netdev_list, list) {
list_for_each_entry(wdev, &rdev->wdev_list, list) {
wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
err = dev_change_net_namespace(wdev->netdev, net, "wlan%d");
if (err)
@@ -188,7 +188,7 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
/* failed -- clean up to old netns */
net = wiphy_net(&rdev->wiphy);
list_for_each_entry_continue_reverse(wdev, &rdev->netdev_list,
list_for_each_entry_continue_reverse(wdev, &rdev->wdev_list,
list) {
wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
err = dev_change_net_namespace(wdev->netdev, net,
@@ -226,7 +226,7 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
rtnl_lock();
mutex_lock(&rdev->devlist_mtx);
list_for_each_entry(wdev, &rdev->netdev_list, list)
list_for_each_entry(wdev, &rdev->wdev_list, list)
dev_close(wdev->netdev);
mutex_unlock(&rdev->devlist_mtx);
@@ -304,7 +304,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
mutex_init(&rdev->mtx);
mutex_init(&rdev->devlist_mtx);
mutex_init(&rdev->sched_scan_mtx);
INIT_LIST_HEAD(&rdev->netdev_list);
INIT_LIST_HEAD(&rdev->wdev_list);
spin_lock_init(&rdev->bss_lock);
INIT_LIST_HEAD(&rdev->bss_list);
INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
@@ -622,7 +622,7 @@ void wiphy_unregister(struct wiphy *wiphy)
__count == 0; }));
mutex_lock(&rdev->devlist_mtx);
BUG_ON(!list_empty(&rdev->netdev_list));
BUG_ON(!list_empty(&rdev->wdev_list));
mutex_unlock(&rdev->devlist_mtx);
/*
@@ -821,7 +821,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
spin_lock_init(&wdev->mgmt_registrations_lock);
mutex_lock(&rdev->devlist_mtx);
list_add_rcu(&wdev->list, &rdev->netdev_list);
wdev->identifier = ++rdev->wdev_id;
list_add_rcu(&wdev->list, &rdev->wdev_list);
rdev->devlist_generation++;
/* can only change netns with wiphy */
dev->features |= NETIF_F_NETNS_LOCAL;