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mac80211: add ieee80211_rx_ni() 

ieee80211_rx() must be called with bottom halves disabled. To simplify
driver development implement ieee80211_rx_ni() which disables BH. This
function must be used when in process context.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Kalle Valo 2009-10-13 20:33:13 +03:00 committed by John W. Linville
parent 88499ab3d8
commit e36e49f733
1 changed files with 26 additions and 6 deletions
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32
include/net/mac80211.h
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@ -1665,11 +1665,11 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw);
* header if %RX_FLAG_RADIOTAP is set in the @status flags.
*
* This function may not be called in IRQ context. Calls to this function
* for a single hardware must be synchronized against each other. Calls
* to this function and ieee80211_rx_irqsafe() may not be mixed for a
* single hardware.
* for a single hardware must be synchronized against each other. Calls to
* this function, ieee80211_rx_ni() and ieee80211_rx_irqsafe() may not be
* mixed for a single hardware.
*
* Note that right now, this function must be called with softirqs disabled.
* In process context use instead ieee80211_rx_ni().
*
* @hw: the hardware this frame came in on
* @skb: the buffer to receive, owned by mac80211 after this call
@ -1682,14 +1682,34 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb);
* Like ieee80211_rx() but can be called in IRQ context
* (internally defers to a tasklet.)
*
* Calls to this function and ieee80211_rx() may not be mixed for a
* single hardware.
* Calls to this function, ieee80211_rx() or ieee80211_rx_ni() may not
* be mixed for a single hardware.
*
* @hw: the hardware this frame came in on
* @skb: the buffer to receive, owned by mac80211 after this call
*/
void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb);
/**
* ieee80211_rx_ni - receive frame (in process context)
*
* Like ieee80211_rx() but can be called in process context
* (internally disables bottom halves).
*
* Calls to this function, ieee80211_rx() and ieee80211_rx_irqsafe() may
* not be mixed for a single hardware.
*
* @hw: the hardware this frame came in on
* @skb: the buffer to receive, owned by mac80211 after this call
*/
static inline void ieee80211_rx_ni(struct ieee80211_hw *hw,
struct sk_buff *skb)
{
local_bh_disable();
ieee80211_rx(hw, skb);
local_bh_enable();
}
/**
* ieee80211_tx_status - transmit status callback
*