[2.5.70] compile error

Hello.

I attached it below.

/================================================\
| Ramón Rey Vicente <ramon.rey at hispalinux.es> |
|                                                |
| Jabber ID <rreylinux at jabber.org>            |
|                                                |
| Public GPG Key http://pgp.escomposlinux.org    |
|                                                |
| GLiSa http://glisa.hispalinux.es               |
\================================================/

make[1]: `arch/i386/kernel/asm-offsets.s' est� actualizado.
Starting the build. KBUILD_BUILTIN=1 KBUILD_MODULES=1
CHK include/linux/compile.h
CC [M] net/ipv4/ah.o
In file included from net/ipv4/ah.c:5:
include/net/ah.h: En la funci�n `ah_hmac_digest':
include/net/ah.h:26: aviso: implicit declaration of function crypto_hmac_init' include/net/ah.h:27: error: crypto_hmac_update' undeclared (first use in this function) include/net/ah.h:27: error: (Each undeclared identifier is reported only once include/net/ah.h:27: error: for each function it appears in.) include/net/ah.h:28: aviso: implicit declaration of function `crypto_hmac_final' make[2]: *** [net/ipv4/ah.o] Error 1
make[1]: *** [net/ipv4] Error 2
make: *** [net] Error 2