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libertas: stop using ieee80211 for radiotap device 

There seems to be no point in doing it as an ieee80211 device instead of
a normal netdev, and when we override its ->priv and then call
free_ieee80211() it has a distressing tendency to crash horribly.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Woodhouse 2007-12-09 16:22:21 -05:00 committed by David S. Miller
parent 198cefb932
commit d9268fb9a1
2 changed files with 15 additions and 23 deletions
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2
drivers/net/wireless/libertas/dev.h
View File

@ -10,7 +10,6 @@
#include <linux/wireless.h>
#include <linux/ethtool.h>
#include <linux/debugfs.h>
#include <net/ieee80211.h>
#include "defs.h"
#include "scan.h"
@ -114,7 +113,6 @@ struct lbs_private {
struct net_device_stats stats;
struct net_device *mesh_dev; /* Virtual device */
struct net_device *rtap_net_dev;
struct ieee80211_device *ieee;
struct iw_statistics wstats;
struct lbs_mesh_stats mstats;

36
drivers/net/wireless/libertas/main.c
View File

@ -1448,7 +1448,7 @@ static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev)
{
struct lbs_private *priv = dev->priv;
return &priv->ieee->stats;
return &priv->stats;
}
@ -1457,42 +1457,36 @@ void lbs_remove_rtap(struct lbs_private *priv)
if (priv->rtap_net_dev == NULL)
return;
unregister_netdev(priv->rtap_net_dev);
free_ieee80211(priv->rtap_net_dev);
free_netdev(priv->rtap_net_dev);
priv->rtap_net_dev = NULL;
}
int lbs_add_rtap(struct lbs_private *priv)
{
int rc = 0;
struct net_device *rtap_dev;
if (priv->rtap_net_dev)
return -EPERM;
priv->rtap_net_dev = alloc_ieee80211(0);
if (priv->rtap_net_dev == NULL)
rtap_dev = alloc_netdev(0, "rtap%d", ether_setup);
if (rtap_dev == NULL)
return -ENOMEM;
rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
rtap_dev->open = lbs_rtap_open;
rtap_dev->stop = lbs_rtap_stop;
rtap_dev->get_stats = lbs_rtap_get_stats;
rtap_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
rtap_dev->set_multicast_list = lbs_set_multicast_list;
rtap_dev->priv = priv;
priv->ieee = netdev_priv(priv->rtap_net_dev);
strcpy(priv->rtap_net_dev->name, "rtap%d");
priv->rtap_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
priv->rtap_net_dev->open = lbs_rtap_open;
priv->rtap_net_dev->stop = lbs_rtap_stop;
priv->rtap_net_dev->get_stats = lbs_rtap_get_stats;
priv->rtap_net_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
priv->rtap_net_dev->set_multicast_list = lbs_set_multicast_list;
priv->rtap_net_dev->priv = priv;
priv->ieee->iw_mode = IW_MODE_MONITOR;
rc = register_netdev(priv->rtap_net_dev);
rc = register_netdev(rtap_dev);
if (rc) {
free_ieee80211(priv->rtap_net_dev);
priv->rtap_net_dev = NULL;
free_netdev(rtap_dev);
return rc;
}
priv->rtap_net_dev = rtap_dev;
return 0;
}