Hello, The build error occurs by compat-wireless-2011-11-10. My kernel is 2.6.27. CC [M] /home/miyabi/test/compat-wireless/compat-wireless-2011-11-10/net/mac80211/status.o /home/miyabi/test/compat-wireless/compat-wireless-2011-11-10/net/mac80211/status.c: In function 'ieee80211_tx_status': /home/miyabi/test/compat-wireless/compat-wireless-2011-11-10/net/mac80211/status.c:566: error: implicit declaration of function 'skb_complete_wifi_ack' make[3]: *** [/home/miyabi/test/compat-wireless/compat-wireless-2011-11-10/net/mac80211/status.o] Error 1 make[2]: *** [/home/miyabi/test/compat-wireless/compat-wireless-2011-11-10/net/mac80211] Error 2 make[1]: *** [_module_/home/miyabi/test/compat-wireless/compat-wireless-2011-11-10] Error 2 make[1]: Leaving directory `/usr/src/kernels/2.6.27-71vl5-x86_64' make: *** [modules] Error 2 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html