Commit f9e10ce4 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

cfg80211: require add_virtual_intf to return new dev 



cfg80211 used to do all its bookkeeping in
the notifier, but some new stuff will have
to use local variables so make the callback
return the netdev pointer.

Tested-by: default avatarJavier Cardona <javier@cozybit.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 09b17470

include/net/cfg80211.h

+7 −4
Original line number Diff line number Diff line
@@ -1033,7 +1033,8 @@ struct cfg80211_pmksa { 
 *

 * @add_virtual_intf: create a new virtual interface with the given name,

 *	must set the struct wireless_dev's iftype. Beware: You must create

 *	the new netdev in the wiphy's network namespace!

 *	the new netdev in the wiphy's network namespace! Returns the netdev,

 *	or an ERR_PTR.

 *

 * @del_virtual_intf: remove the virtual interface determined by ifindex.

 *
@@ -1168,8 +1169,10 @@ struct cfg80211_ops { 
	int	(*suspend)(struct wiphy *wiphy);

	int	(*resume)(struct wiphy *wiphy);



	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,

				    enum nl80211_iftype type, u32 *flags,

	struct net_device * (*add_virtual_intf)(struct wiphy *wiphy,

						char *name,

						enum nl80211_iftype type,

						u32 *flags,

						struct vif_params *params);

	int	(*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);

	int	(*change_virtual_intf)(struct wiphy *wiphy,

net/mac80211/cfg.c

+12 −8
Original line number Diff line number Diff line
@@ -19,8 +19,9 @@ 
#include "rate.h"

#include "mesh.h"



static int ieee80211_add_iface(struct wiphy *wiphy, char *name,

			       enum nl80211_iftype type, u32 *flags,

static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,

					      enum nl80211_iftype type,

					      u32 *flags,

					      struct vif_params *params)

{

	struct ieee80211_local *local = wiphy_priv(wiphy);
@@ -29,12 +30,15 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name, 
	int err;



	err = ieee80211_if_add(local, name, &dev, type, params);

	if (err || type != NL80211_IFTYPE_MONITOR || !flags)

		return err;

	if (err)

		return ERR_PTR(err);



	if (type == NL80211_IFTYPE_MONITOR && flags) {

		sdata = IEEE80211_DEV_TO_SUB_IF(dev);

		sdata->u.mntr_flags = *flags;

	return 0;

	}



	return dev;

}



static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)

net/wireless/nl80211.c

+5 −2
Original line number Diff line number Diff line
@@ -1368,6 +1368,7 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) 
{

	struct cfg80211_registered_device *rdev = info->user_ptr[0];

	struct vif_params params;

	struct net_device *dev;

	int err;

	enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;

	u32 flags;
@@ -1403,11 +1404,13 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) 
	err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?

				  info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,

				  &flags);

	err = rdev->ops->add_virtual_intf(&rdev->wiphy,

	dev = rdev->ops->add_virtual_intf(&rdev->wiphy,

		nla_data(info->attrs[NL80211_ATTR_IFNAME]),

		type, err ? NULL : &flags, &params);

	if (IS_ERR(dev))

		return PTR_ERR(dev);



	return err;

	return 0;

}



static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)