Upgrade kernel

My machine is itanium running Red Hat 7.2 , kernel 2.4.9 , gcc 3.0.4 and as 2.11.90.
I tried to upgrade it to 2.4.18. However when running make modules. I found error msg belows.

/usr/src/linux-2.4.18/include/linux/interrupt.h:264: `probe_irq_off_R_ver_str' declared as function returning a function
/usr/src/linux-2.4.18/include/linux/interrupt.h:264: warning: parameter names (without types) in function declaration
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: invalid suffix on integer constant
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: parse error before numeric constant
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: `probe_irq_mask_R_ver_str' declared as function returning a function
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: warning: function declaration isn't a prototype

...
usb-uhci.c:3128: `df83c692' undeclared (first use in this function)
usb-uhci.c:3128: called object is not a function
usb-uhci.c:3129: invalid suffix on integer constant
usb-uhci.c:3129: warning: null format string
usb-uhci.c:3129: called object is not a function
make[2]: *** [usb-uhci.o] Error 1
make[2]: Leaving directory `/usr/src/linux-2.4.18/drivers/usb'
make[1]: *** [_modsubdir_usb] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.18/drivers'
make: *** [_mod_drivers] Error 2

Then I comment usb from Makefile in driver directory, make modules again and found this erros msg:
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: invalid suffix on integer constant
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: parse error before numeric constant
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: `probe_irq_mask_R_ver_str' declared as function returning a function
/usr/src/linux-2.4.18/include/linux/interrupt.h:265: warning: function declaration isn't a prototype
balloc.c: In function `ext3_free_blocks':
balloc.c:274: invalid suffix on integer constant
balloc.c:274: warning: null format string
balloc.c:274: called object is not a function


Any suggestion?
Regards,
Mongkol.