rt2x00: uncomment get_tsf

The atomic requirement for get_tsf() has been removed
by mac80211. This means the USB drivers can add support
for the callback function again.

Signed-off-by: Ivo van Doorn <[e-mail]>
Signed-off-by: John W. Linville <[e-mail]>

drivers/net/wireless/rt2x00/rt73usb.c

···
 	return 0;
 }
 
-#if 0
-/*
- * Mac80211 demands get_tsf must be atomic.
- * This is not possible for rt73usb since all register access
- * functions require sleeping. Untill mac80211 no longer needs
- * get_tsf to be atomic, this function should be disabled.
- */
 static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
···
 
 	return tsf;
 }
-#else
-#define rt73usb_get_tsf	NULL
-#endif
 
 static const struct ieee80211_ops rt73usb_mac80211_ops = {
 	.tx			= rt2x00mac_tx,