Problem in loading Nouveau driver

[Ali Aminian]

Hello
How should i enable Nouveau driver in a custom kernel. Here is how i
compiled my kernel:
1_make localmodconfig
2_make menuconfig and then went to: device drivers -->  Graphics
support --> Nouveau Support
3_make
4_make modules_install
5_make install

and after booting the kernel i tried loading Nouveau by following commands:

1_insmod drm.ko
2_insmod drm_kms_helper.ko
3_insmod ttm.ko
4_insmod nouveau.ko

but in the last step it gives me Unknown symbol in module

here is the result of "dmesg | tail" after i tried insmod nouvea.ko:

drm: module verification failed: signature and/or  required key
missing - tainting kernel
[  212.330197] [drm] Initialized drm 1.1.0 20060810
[  255.336591] nouveau: Unknown symbol i2c_bit_add_bus (err 0)
[  255.336610] nouveau: Unknown symbol mxm_wmi_call_mxds (err 0)
[  255.336625] nouveau: Unknown symbol mxm_wmi_supported (err 0)
[  255.336644] nouveau: Unknown symbol i2c_bit_algo (err 0)
[  255.336719] nouveau: Unknown symbol wmi_evaluate_method (err 0)
[  255.336777] nouveau: Unknown symbol wmi_has_guid (err 0)
[  255.336904] nouveau: Unknown symbol mxm_wmi_call_mxmx (err 0)

I don't know in what step i did wrong.

thank you.