/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c: In function ‘___ieee80211_stop_tx_ba_session’:
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c:158: error: implicit declaration of function ‘kfree_rcu’
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c:158: error: ‘rcu_head’ undeclared (first use in this function)
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c:158: error: (Each undeclared identifier is reported only once
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c:158: error: for each function it appears in.)
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c: In function ‘ieee80211_tx_ba_session_handle_start’:
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c:317: error: ‘rcu_head’ undeclared (first use in this function)
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c: In function ‘ieee80211_stop_tx_ba_cb’:
/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.c:696: error: ‘rcu_head’ undeclared (first use in this function)
make[5]: *** [/usr/src/compat-wireless-2011-05-05/net/mac80211/agg-tx.o] Error 1
make[4]: *** [/usr/src/compat-wireless-2011-05-05/net/mac80211] Error 2
make[3]: *** [_module_/usr/src/compat-wireless-2011-05-05] Error 2
make[2]: *** [sub-make] Error 2
make[1]: *** [all] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-2-amd64'
make: *** [modules] Error 2