Hello list

I try to build latest s2-liplianin drivers but make shows severals 
warnings and module not load after build driver:

WARNING: "ir_input_keydown" [s2-liplianin/v4l/mantis.ko] undefined!
WARNING: "ir_codes_mantis_vp1041_table" [s2-liplianin/v4l/mantis.ko] undefined!
WARNING: "ir_input_nokey" [s2-liplianin/v4l/mantis.ko] undefined!
WARNING: "ir_input_init" [s2-liplianin/v4l/mantis.ko] undefined!
WARNING: "ir_codes_mantis_vp2040_table" [s2-liplianin/v4l/mantis.ko] undefined!
WARNING: "ir_codes_mantis_vp2033_table" [s2-liplianin/v4l/mantis.ko] undefined!

My kernel is 2.6.31.4.
The attached is full driver build log.

Any idea to fix this problem ?