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mac80211: allow mac80211 drivers to get to struct ieee80211_hw from wiphy
If a driver is given a wiphy and it wants to get to its private mac80211 driver area it can use wiphy_to_ieee80211_hw() to get first to its ieee80211_hw and then access the private structure via hw->priv. The wiphy_priv() is already being used internally by mac80211 and drivers should not use this. This can be helpful in a drivers reg_notifier(). Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -989,6 +989,19 @@ struct ieee80211_hw {
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u8 max_rate_tries;
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};
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/**
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* wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy
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*
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* @wiphy: the &struct wiphy which we want to query
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*
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* mac80211 drivers can use this to get to their respective
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* &struct ieee80211_hw. Drivers wishing to get to their own private
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* structure can then access it via hw->priv. Note that mac802111 drivers should
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* not use wiphy_priv() to try to get their private driver structure as this
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* is already used internally by mac80211.
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*/
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struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy);
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/**
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* SET_IEEE80211_DEV - set device for 802.11 hardware
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*
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@ -41,6 +41,15 @@ const unsigned char rfc1042_header[] __aligned(2) =
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const unsigned char bridge_tunnel_header[] __aligned(2) =
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{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
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struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy)
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{
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struct ieee80211_local *local;
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BUG_ON(!wiphy);
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local = wiphy_priv(wiphy);
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return &local->hw;
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}
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EXPORT_SYMBOL(wiphy_to_ieee80211_hw);
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u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
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enum nl80211_iftype type)
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