用boot下的config*编译相同内核也出错？郁闷哦

harryzhu

我只需要作一点儿小的改动，load /boot/config*，然后运行make dep;make clean;make bzImage时出错，郁闷哦，我又不是升级内核，这个怎么不行呢？该怎么样才能编译下去啊？求助大虾
下边是make bzImage时的出错信息：
/usr/src/linux-2.4.21-27.EL/include/net/ah.h: In function `ah_hmac_digest':
/usr/src/linux-2.4.21-27.EL/include/net/ah.h:26: warning: implicit declaration of function `crypto_hmac_init'
/usr/src/linux-2.4.21-27.EL/include/net/ah.h:27: `crypto_hmac_update' undeclared (first use in this function)
/usr/src/linux-2.4.21-27.EL/include/net/ah.h:27: (Each undeclared identifier is reported only once
/usr/src/linux-2.4.21-27.EL/include/net/ah.h:27: for each function it appears in.)
/usr/src/linux-2.4.21-27.EL/include/net/ah.h:28: warning: implicit declaration of function `crypto_hmac_final'
In file included from xfrm_algo.c:19:
/usr/src/linux-2.4.21-27.EL/include/net/esp.h: In function `esp_hmac_digest':
/usr/src/linux-2.4.21-27.EL/include/net/esp.h:49: `crypto_hmac_update' undeclared (first use in this function)
make[3]: *** [xfrm_algo.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.4.21-27.EL/net/xfrm'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory `/usr/src/linux-2.4.21-27.EL/net/xfrm'
make[1]: *** [_subdir_xfrm] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.21-27.EL/net'
make: *** [_dir_net] Error 2

另外，我load/boot下的config文件， 注意到硬盘的DMA是打开的，可是我运行hdparm -d1 /dev/hda时，出错:
hdparm -d1 /dev/hda

/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma    =  0 (off)
是不是还是内核中没有设好，需要重新编译呢？