给celinux-040503内核打上补丁之后，编译内核后出现如下错误！

babyfun2008

arch/mips/jz4740/common/jz4740.o(.text+0x4c70): In function `udc_read_proc':
: undefined reference to `jz4740_udc_state'
arch/mips/jz4740/common/jz4740.o(.text+0x4c74): In function `udc_read_proc':
: undefined reference to `jz4740_udc_state'
arch/mips/jz4740/common/jz4740.o(.text+0x4e4c): In function `rtc_read_proc':
: undefined reference to `proc_rtc_get_status'
arch/mips/jz4740/common/jz4740.o(.text+0x4e9: In function `rtc_write_proc':
: undefined reference to `proc_rtc_set_status'
make: *** [vmlinux] Error 1

大家帮忙看看是怎么回事呢？