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mac80211: add ieee80211_get_operstate() function

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Add ieee80211_get_operstate() function to get the operstate
of the netdevice.

This is needed for drivers that need to know when the interface
is IF_OPER_UP (e.g. wl12xx), and block notifiers can't be used
(e.g. because the interface is already IF_OPER_UP, like after
resuming from suspend)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Eliad Peller 2011-06-06 12:59:29 +03:00 committed by John W. Linville
parent c48b1f729a
commit 1d34d108e0
2 changed files with 17 additions and 0 deletions
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10
include/net/mac80211.h
View File

@ -2919,6 +2919,16 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
enum nl80211_cqm_rssi_threshold_event rssi_event,
gfp_t gfp);
/**
* ieee80211_get_operstate - get the operstate of the vif
*
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
*
* The driver might need to know the operstate of the net_device
* (specifically, whether the link is IF_OPER_UP after resume)
*/
unsigned char ieee80211_get_operstate(struct ieee80211_vif *vif);
/**
* ieee80211_chswitch_done - Complete channel switch process
* @vif: &struct ieee80211_vif pointer from the add_interface callback.

7
net/mac80211/mlme.c
View File

@ -2652,3 +2652,10 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp);
}
EXPORT_SYMBOL(ieee80211_cqm_rssi_notify);
unsigned char ieee80211_get_operstate(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
return sdata->dev->operstate;
}
EXPORT_SYMBOL(ieee80211_get_operstate);