* [PATCH/RFT 1/2] mac80211: revamp virtual interface handling
2008-07-05 10:06 [PATCH/RFT 0/2] mac80211 virtual interface improvement Johannes Berg
@ 2008-07-05 10:06 ` Johannes Berg
2008-07-05 10:06 ` [PATCH/RFT 2/2] mac80211: push interface checks down Johannes Berg
1 sibling, 0 replies; 3+ messages in thread
From: Johannes Berg @ 2008-07-05 10:06 UTC (permalink / raw)
To: linux-wireless
This patch revamps the virtual interface handling and makes the
code much easier to follow. Fewer functions, better names, less
spaghetti code.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
---
net/mac80211/cfg.c | 24 --
net/mac80211/debugfs.c | 15 -
net/mac80211/debugfs_netdev.c | 14 -
net/mac80211/debugfs_netdev.h | 5
net/mac80211/ieee80211_i.h | 21 --
net/mac80211/iface.c | 337 +++++++++++++++++++-----------------------
net/mac80211/main.c | 18 --
net/mac80211/wext.c | 3
8 files changed, 172 insertions(+), 265 deletions(-)
--- everything.orig/net/mac80211/cfg.c 2008-07-05 04:16:54.000000000 +0200
+++ everything/net/mac80211/cfg.c 2008-07-05 12:04:29.000000000 +0200
@@ -50,9 +50,6 @@ static int ieee80211_add_iface(struct wi
struct ieee80211_sub_if_data *sdata;
int err;
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
itype = nl80211_type_to_mac80211_type(type);
if (itype == IEEE80211_IF_TYPE_INVALID)
return -EINVAL;
@@ -68,35 +65,26 @@ static int ieee80211_add_iface(struct wi
static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct net_device *dev;
- char *name;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
/* we're under RTNL */
dev = __dev_get_by_index(&init_net, ifindex);
if (!dev)
- return 0;
+ return -ENODEV;
- name = dev->name;
+ ieee80211_if_remove(dev);
- return ieee80211_if_remove(local->mdev, name, -1);
+ return 0;
}
static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
- struct ieee80211_local *local = wiphy_priv(wiphy);
struct net_device *dev;
enum ieee80211_if_types itype;
struct ieee80211_sub_if_data *sdata;
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
/* we're under RTNL */
dev = __dev_get_by_index(&init_net, ifindex);
if (!dev)
@@ -111,11 +99,7 @@ static int ieee80211_change_iface(struct
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- return -EOPNOTSUPP;
-
- ieee80211_if_reinit(dev);
- ieee80211_if_set_type(dev, itype);
+ ieee80211_if_change_type(sdata, itype);
if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
--- everything.orig/net/mac80211/ieee80211_i.h 2008-07-05 04:16:44.000000000 +0200
+++ everything/net/mac80211/ieee80211_i.h 2008-07-05 12:04:29.000000000 +0200
@@ -558,12 +558,6 @@ struct ieee80211_local {
bool tim_in_locked_section; /* see ieee80211_beacon_get() */
int tx_headroom; /* required headroom for hardware/radiotap */
- enum {
- IEEE80211_DEV_UNINITIALIZED = 0,
- IEEE80211_DEV_REGISTERED,
- IEEE80211_DEV_UNREGISTERED,
- } reg_state;
-
/* Tasklet and skb queue to process calls from IRQ mode. All frames
* added to skb_queue will be processed, but frames in
* skb_queue_unreliable may be dropped if the total length of these
@@ -863,7 +857,6 @@ int ieee80211_hw_config(struct ieee80211
int ieee80211_if_config(struct net_device *dev);
int ieee80211_if_config_beacon(struct net_device *dev);
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
-void ieee80211_if_setup(struct net_device *dev);
u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
struct ieee80211_ht_info *req_ht_cap,
struct ieee80211_ht_bss_info *req_bss_cap);
@@ -932,16 +925,14 @@ static inline void ieee80211_start_mesh(
#endif
/* interface handling */
+void ieee80211_if_setup(struct net_device *dev);
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
- struct net_device **new_dev, int type,
+ struct net_device **new_dev, enum ieee80211_if_types type,
struct vif_params *params);
-void ieee80211_if_set_type(struct net_device *dev, int type);
-void ieee80211_if_reinit(struct net_device *dev);
-void __ieee80211_if_del(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata);
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
-void ieee80211_if_free(struct net_device *dev);
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
+void ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
+ enum ieee80211_if_types type);
+void ieee80211_if_remove(struct net_device *dev);
+void ieee80211_remove_interfaces(struct ieee80211_local *local);
/* tx handling */
void ieee80211_clear_tx_pending(struct ieee80211_local *local);
--- everything.orig/net/mac80211/iface.c 2008-07-05 04:16:49.000000000 +0200
+++ everything/net/mac80211/iface.c 2008-07-05 12:04:29.000000000 +0200
@@ -2,6 +2,7 @@
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -17,39 +18,149 @@
#include "debugfs_netdev.h"
#include "mesh.h"
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
+/*
+ * Called when the netdev is removed or, by the code below, before
+ * the interface type changes.
+ */
+static void ieee80211_teardown_sdata(struct net_device *dev)
{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
+ struct beacon_data *beacon;
+ struct sk_buff *skb;
+ int flushed;
int i;
- /* Default values for sub-interface parameters */
- sdata->drop_unencrypted = 0;
+ ieee80211_debugfs_remove_netdev(sdata);
+
+ /* free extra data */
+ ieee80211_free_keys(sdata);
+
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
- skb_queue_head_init(&sdata->fragments[i].skb_list);
+ __skb_queue_purge(&sdata->fragments[i].skb_list);
+ sdata->fragment_next = 0;
- INIT_LIST_HEAD(&sdata->key_list);
+ switch (sdata->vif.type) {
+ case IEEE80211_IF_TYPE_AP:
+ beacon = sdata->u.ap.beacon;
+ rcu_assign_pointer(sdata->u.ap.beacon, NULL);
+ synchronize_rcu();
+ kfree(beacon);
- sdata->force_unicast_rateidx = -1;
- sdata->max_ratectrl_rateidx = -1;
+ while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
+ local->total_ps_buffered--;
+ dev_kfree_skb(skb);
+ }
+
+ break;
+ case IEEE80211_IF_TYPE_MESH_POINT:
+ /* Allow compiler to elide mesh_rmc_free call. */
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ mesh_rmc_free(dev);
+ /* fall through */
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ kfree(sdata->u.sta.extra_ie);
+ kfree(sdata->u.sta.assocreq_ies);
+ kfree(sdata->u.sta.assocresp_ies);
+ kfree_skb(sdata->u.sta.probe_resp);
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ case IEEE80211_IF_TYPE_VLAN:
+ case IEEE80211_IF_TYPE_MNTR:
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ BUG();
+ break;
+ }
+
+ flushed = sta_info_flush(local, sdata);
+ WARN_ON(flushed);
}
-static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
+/*
+ * Helper function to initialise an interface to a specific type.
+ */
+static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
+ enum ieee80211_if_types type)
{
- int i;
+ struct ieee80211_if_sta *ifsta;
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
- __skb_queue_purge(&sdata->fragments[i].skb_list);
+ /* clear type-dependent union */
+ memset(&sdata->u, 0, sizeof(sdata->u));
+
+ /* and set some type-dependent values */
+ sdata->vif.type = type;
+
+ /* only monitor differs */
+ sdata->dev->type = ARPHRD_ETHER;
+
+ switch (type) {
+ case IEEE80211_IF_TYPE_AP:
+ skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
+ INIT_LIST_HEAD(&sdata->u.ap.vlans);
+ break;
+ case IEEE80211_IF_TYPE_MESH_POINT:
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ ifsta = &sdata->u.sta;
+ INIT_WORK(&ifsta->work, ieee80211_sta_work);
+ setup_timer(&ifsta->timer, ieee80211_sta_timer,
+ (unsigned long) sdata);
+ skb_queue_head_init(&ifsta->skb_queue);
+
+ ifsta->capab = WLAN_CAPABILITY_ESS;
+ ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
+ IEEE80211_AUTH_ALG_SHARED_KEY;
+ ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
+ IEEE80211_STA_AUTO_BSSID_SEL |
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
+ if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
+ ifsta->flags |= IEEE80211_STA_WMM_ENABLED;
+
+ if (ieee80211_vif_is_mesh(&sdata->vif))
+ ieee80211_mesh_init_sdata(sdata);
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ sdata->dev->type = ARPHRD_IEEE80211_RADIOTAP;
+ sdata->dev->hard_start_xmit = ieee80211_monitor_start_xmit;
+ sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |
+ MONITOR_FLAG_OTHER_BSS;
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ case IEEE80211_IF_TYPE_VLAN:
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ BUG();
+ break;
+ }
+
+ ieee80211_debugfs_add_netdev(sdata);
+}
+
+void ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
+ enum ieee80211_if_types type)
+{
+ /* Purge and reset type-dependent state. */
+ ieee80211_teardown_sdata(sdata->dev);
+ ieee80211_setup_sdata(sdata, type);
+
+ /* reset some values that shouldn't be kept across type changes */
+ sdata->basic_rates = 0;
+ sdata->drop_unencrypted = 0;
+ sdata->sequence = 0;
}
-/* Must be called with rtnl lock held. */
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
- struct net_device **new_dev, int type,
+ struct net_device **new_dev, enum ieee80211_if_types type,
struct vif_params *params)
{
struct net_device *ndev;
struct ieee80211_sub_if_data *sdata = NULL;
- int ret;
+ int ret, i;
ASSERT_RTNL();
+
ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size,
name, ieee80211_if_setup);
if (!ndev)
@@ -74,18 +185,28 @@ int ieee80211_if_add(struct ieee80211_lo
/* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */
sdata = netdev_priv(ndev);
ndev->ieee80211_ptr = &sdata->wdev;
+
+ /* initialise type-independent data */
sdata->wdev.wiphy = local->hw.wiphy;
- sdata->vif.type = IEEE80211_IF_TYPE_AP;
- sdata->dev = ndev;
sdata->local = local;
- ieee80211_if_sdata_init(sdata);
+ sdata->dev = ndev;
+
+ for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
+ skb_queue_head_init(&sdata->fragments[i].skb_list);
+
+ INIT_LIST_HEAD(&sdata->key_list);
+
+ sdata->force_unicast_rateidx = -1;
+ sdata->max_ratectrl_rateidx = -1;
+
+ /* setup type-dependent data */
+ ieee80211_setup_sdata(sdata, type);
ret = register_netdevice(ndev);
if (ret)
goto fail;
- ieee80211_debugfs_add_netdev(sdata);
- ieee80211_if_set_type(ndev, type);
+ ndev->uninit = ieee80211_teardown_sdata;
if (ieee80211_vif_is_mesh(&sdata->vif) &&
params && params->mesh_id_len)
@@ -93,11 +214,6 @@ int ieee80211_if_add(struct ieee80211_lo
params->mesh_id_len,
params->mesh_id);
- /* we're under RTNL so all this is fine */
- if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
- __ieee80211_if_del(local, sdata);
- return -ENODEV;
- }
list_add_tail_rcu(&sdata->list, &local->interfaces);
if (new_dev)
@@ -105,181 +221,34 @@ int ieee80211_if_add(struct ieee80211_lo
return 0;
-fail:
+ fail:
free_netdev(ndev);
return ret;
}
-void ieee80211_if_set_type(struct net_device *dev, int type)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int oldtype = sdata->vif.type;
-
- /*
- * Called even when register_netdevice fails, it would
- * oops if assigned before initialising the rest.
- */
- dev->uninit = ieee80211_if_reinit;
-
- /* most have no BSS pointer */
- sdata->bss = NULL;
- sdata->vif.type = type;
-
- sdata->basic_rates = 0;
-
- switch (type) {
- case IEEE80211_IF_TYPE_WDS:
- case IEEE80211_IF_TYPE_VLAN:
- /* nothing special */
- break;
- case IEEE80211_IF_TYPE_AP:
- skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
- INIT_LIST_HEAD(&sdata->u.ap.vlans);
- break;
- case IEEE80211_IF_TYPE_MESH_POINT:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS: {
- struct ieee80211_if_sta *ifsta;
-
- ifsta = &sdata->u.sta;
- INIT_WORK(&ifsta->work, ieee80211_sta_work);
- setup_timer(&ifsta->timer, ieee80211_sta_timer,
- (unsigned long) sdata);
- skb_queue_head_init(&ifsta->skb_queue);
-
- ifsta->capab = WLAN_CAPABILITY_ESS;
- ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
- IEEE80211_AUTH_ALG_SHARED_KEY;
- ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL;
- if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
- ifsta->flags |= IEEE80211_STA_WMM_ENABLED;
-
- if (ieee80211_vif_is_mesh(&sdata->vif))
- ieee80211_mesh_init_sdata(sdata);
- break;
- }
- case IEEE80211_IF_TYPE_MNTR:
- dev->type = ARPHRD_IEEE80211_RADIOTAP;
- dev->hard_start_xmit = ieee80211_monitor_start_xmit;
- sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |
- MONITOR_FLAG_OTHER_BSS;
- break;
- case IEEE80211_IF_TYPE_INVALID:
- BUG();
- break;
- }
- ieee80211_debugfs_change_if_type(sdata, oldtype);
-}
-
-/* Must be called with rtnl lock held. */
-void ieee80211_if_reinit(struct net_device *dev)
+void ieee80211_if_remove(struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sk_buff *skb;
- int flushed;
ASSERT_RTNL();
- ieee80211_free_keys(sdata);
-
- ieee80211_if_sdata_deinit(sdata);
-
- /* Need to handle mesh specially to allow eliding the function call */
- if (ieee80211_vif_is_mesh(&sdata->vif))
- mesh_rmc_free(dev);
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_INVALID:
- /* cannot happen */
- WARN_ON(1);
- break;
- case IEEE80211_IF_TYPE_AP: {
- struct beacon_data *beacon;
-
- beacon = sdata->u.ap.beacon;
- rcu_assign_pointer(sdata->u.ap.beacon, NULL);
- synchronize_rcu();
- kfree(beacon);
-
- while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
- local->total_ps_buffered--;
- dev_kfree_skb(skb);
- }
-
- break;
- }
- case IEEE80211_IF_TYPE_WDS:
- case IEEE80211_IF_TYPE_VLAN:
- /* nothing to do */
- break;
- case IEEE80211_IF_TYPE_MESH_POINT:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- kfree(sdata->u.sta.extra_ie);
- sdata->u.sta.extra_ie = NULL;
- kfree(sdata->u.sta.assocreq_ies);
- sdata->u.sta.assocreq_ies = NULL;
- kfree(sdata->u.sta.assocresp_ies);
- sdata->u.sta.assocresp_ies = NULL;
- if (sdata->u.sta.probe_resp) {
- dev_kfree_skb(sdata->u.sta.probe_resp);
- sdata->u.sta.probe_resp = NULL;
- }
-
- break;
- case IEEE80211_IF_TYPE_MNTR:
- dev->type = ARPHRD_ETHER;
- break;
- }
-
- flushed = sta_info_flush(local, sdata);
- WARN_ON(flushed);
-
- memset(&sdata->u, 0, sizeof(sdata->u));
- ieee80211_if_sdata_init(sdata);
-}
-
-/* Must be called with rtnl lock held. */
-void __ieee80211_if_del(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata)
-{
- struct net_device *dev = sdata->dev;
-
- ieee80211_debugfs_remove_netdev(sdata);
+ list_del_rcu(&sdata->list);
+ synchronize_rcu();
unregister_netdevice(dev);
- /*
- * The net_device will be freed by its destructor,
- * i.e. ieee80211_if_free.
- */
}
-/* Must be called with rtnl lock held. */
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
+/*
+ * Remove all interfaces, may only be called at hardware unregistration
+ * time because it doesn't do RCU-safe list removals.
+ */
+void ieee80211_remove_interfaces(struct ieee80211_local *local)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata, *n;
+ struct ieee80211_sub_if_data *sdata, *tmp;
ASSERT_RTNL();
- list_for_each_entry_safe(sdata, n, &local->interfaces, list) {
- if ((sdata->vif.type == id || id == -1) &&
- strcmp(name, sdata->dev->name) == 0) {
- list_del_rcu(&sdata->list);
- synchronize_rcu();
- __ieee80211_if_del(local, sdata);
- return 0;
- }
+ list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
+ list_del(&sdata->list);
+ unregister_netdevice(sdata->dev);
}
- return -ENODEV;
-}
-
-void ieee80211_if_free(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- ieee80211_if_sdata_deinit(sdata);
- free_netdev(dev);
}
--- everything.orig/net/mac80211/debugfs.c 2008-07-05 04:27:48.000000000 +0200
+++ everything/net/mac80211/debugfs.c 2008-07-05 04:29:44.000000000 +0200
@@ -70,16 +70,6 @@ DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100
/* statistics stuff */
-static inline int rtnl_lock_local(struct ieee80211_local *local)
-{
- rtnl_lock();
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
- rtnl_unlock();
- return -ENODEV;
- }
- return 0;
-}
-
#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
@@ -96,10 +86,7 @@ static ssize_t format_devstat_counter(st
if (!local->ops->get_stats)
return -EOPNOTSUPP;
- res = rtnl_lock_local(local);
- if (res)
- return res;
-
+ rtnl_lock();
res = local->ops->get_stats(local_to_hw(local), &stats);
rtnl_unlock();
if (!res)
--- everything.orig/net/mac80211/main.c 2008-07-05 04:28:25.000000000 +0200
+++ everything/net/mac80211/main.c 2008-07-05 05:53:40.000000000 +0200
@@ -965,7 +965,6 @@ static const struct header_ops ieee80211
.cache_update = eth_header_cache_update,
};
-/* Must not be called for mdev */
void ieee80211_if_setup(struct net_device *dev)
{
ether_setup(dev);
@@ -975,7 +974,7 @@ void ieee80211_if_setup(struct net_devic
dev->change_mtu = ieee80211_change_mtu;
dev->open = ieee80211_open;
dev->stop = ieee80211_stop;
- dev->destructor = ieee80211_if_free;
+ dev->destructor = free_netdev;
}
/* everything else */
@@ -1772,7 +1771,6 @@ int ieee80211_register_hw(struct ieee802
printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
wiphy_name(local->hw.wiphy));
- local->reg_state = IEEE80211_DEV_REGISTERED;
rtnl_unlock();
ieee80211_led_init(local);
@@ -1802,30 +1800,20 @@ EXPORT_SYMBOL(ieee80211_register_hw);
void ieee80211_unregister_hw(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata, *tmp;
tasklet_kill(&local->tx_pending_tasklet);
tasklet_kill(&local->tasklet);
rtnl_lock();
- BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
-
- local->reg_state = IEEE80211_DEV_UNREGISTERED;
-
/*
* At this point, interface list manipulations are fine
* because the driver cannot be handing us frames any
* more and the tasklet is killed.
*/
- /*
- * First, we remove all virtual interfaces.
- */
- list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
- list_del(&sdata->list);
- __ieee80211_if_del(local, sdata);
- }
+ /* First, we remove all virtual interfaces. */
+ ieee80211_remove_interfaces(local);
/* then, finally, remove the master interface */
unregister_netdevice(local->mdev);
--- everything.orig/net/mac80211/wext.c 2008-07-05 04:21:13.000000000 +0200
+++ everything/net/mac80211/wext.c 2008-07-05 12:04:29.000000000 +0200
@@ -301,8 +301,7 @@ static int ieee80211_ioctl_siwmode(struc
if (netif_running(dev))
return -EBUSY;
- ieee80211_if_reinit(dev);
- ieee80211_if_set_type(dev, type);
+ ieee80211_if_change_type(sdata, type);
return 0;
}
--- everything.orig/net/mac80211/debugfs_netdev.c 2008-07-05 04:28:10.000000000 +0200
+++ everything/net/mac80211/debugfs_netdev.c 2008-07-05 05:46:55.000000000 +0200
@@ -476,12 +476,12 @@ static void del_mesh_config(struct ieee8
}
#endif
-static void del_files(struct ieee80211_sub_if_data *sdata, int type)
+static void del_files(struct ieee80211_sub_if_data *sdata)
{
if (!sdata->debugfsdir)
return;
- switch (type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
del_mesh_stats(sdata);
@@ -521,22 +521,16 @@ void ieee80211_debugfs_add_netdev(struct
sprintf(buf, "netdev:%s", sdata->dev->name);
sdata->debugfsdir = debugfs_create_dir(buf,
sdata->local->hw.wiphy->debugfsdir);
+ add_files(sdata);
}
void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
{
- del_files(sdata, sdata->vif.type);
+ del_files(sdata);
debugfs_remove(sdata->debugfsdir);
sdata->debugfsdir = NULL;
}
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
- int oldtype)
-{
- del_files(sdata, oldtype);
- add_files(sdata);
-}
-
static int netdev_notify(struct notifier_block *nb,
unsigned long state,
void *ndev)
--- everything.orig/net/mac80211/debugfs_netdev.h 2008-07-05 05:46:12.000000000 +0200
+++ everything/net/mac80211/debugfs_netdev.h 2008-07-05 05:46:26.000000000 +0200
@@ -6,8 +6,6 @@
#ifdef CONFIG_MAC80211_DEBUGFS
void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
- int oldtype);
void ieee80211_debugfs_netdev_init(void);
void ieee80211_debugfs_netdev_exit(void);
#else
@@ -17,9 +15,6 @@ static inline void ieee80211_debugfs_add
static inline void ieee80211_debugfs_remove_netdev(
struct ieee80211_sub_if_data *sdata)
{}
-static inline void ieee80211_debugfs_change_if_type(
- struct ieee80211_sub_if_data *sdata, int oldtype)
-{}
static inline void ieee80211_debugfs_netdev_init(void)
{}
--
^ permalink raw reply [flat|nested] 3+ messages in thread