求助：编译无限驱动madwifi时出错，详细信息如下

[yishuiliunian0]

Checking requirements... ok.
Checking kernel configuration... ok.
make -C /lib/modules/2.6.28-11-generic/build SUBDIRS=/home/liushui/桌面/madwifi-0.9.4 modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.28-11-generic'
CC [M] /home/liushui/桌面/madwifi-0.9.4/ath/if_ath.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/ath/if_ath_pci.o
LD [M] /home/liushui/桌面/madwifi-0.9.4/ath/ath_pci.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/ath_hal/ah_os.o
HOSTCC /home/liushui/桌面/madwifi-0.9.4/ath_hal/uudecode
UUDECODE /home/liushui/桌面/madwifi-0.9.4/ath_hal/x86_64-elf.hal.o
LD [M] /home/liushui/桌面/madwifi-0.9.4/ath_hal/ath_hal.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/amrr/amrr.o
LD [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/amrr/ath_rate_amrr.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/minstrel/minstrel.o
LD [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/minstrel/ath_rate_minstrel.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/onoe/onoe.o
LD [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/onoe/ath_rate_onoe.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/sample/sample.o
LD [M] /home/liushui/桌面/madwifi-0.9.4/ath_rate/sample/ath_rate_sample.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/if_media.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_beacon.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_crypto.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_crypto_none.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_input.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_node.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_output.o
CC [M] /home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_power.o
/home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_power.c: In function 'ieee80211_pwrsave':
/home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_power.c:240: error: implicit declaration of function '__skb_append'
make[3]: *** [/home/liushui/桌面/madwifi-0.9.4/net80211/ieee80211_power.o] Error 1
make[2]: *** [/home/liushui/桌面/madwifi-0.9.4/net80211] Error 2
make[1]: *** [_module_/home/liushui/桌面/madwifi-0.9.4] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.28-11-generic'
make: *** [modules] 错误 2

我的本子是asus的k40ab。
无限网络适配器是：atheros
现在用的内核是2.6.28.11。我也试过用.15的内核结果还是一样。
安装好后，进系统就找不到无线网络。好像无线网络模块没有加载一样，于是想重新编译编译一下驱动。看看能不能修好，结果碰到了这样的问题。
但不知到底那里出错，请教了。谢谢。