Exact Kernel version:  2.5.51
Distribution:  Gentoo 1.4rc1
Hardware Environment:  Abit-KG7-RAID, 512MB, Geforce3
Software Environment:  gcc 3.2 (3.2-r4)
Problem Description:

  gcc -Wp,-MD,drivers/char/.riscom8.o.d -D__KERNEL__ -Iinclude -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -f
no-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i686
-Iarch/i386/mach-generic -nostdi
nc -iwithprefix include    -DKBUILD_BASENAME=riscom8 -DKBUILD_MODNAME=riscom8  
-c -o drivers/char/riscom8.o d
rivers/char/riscom8.c
In file included from drivers/char/riscom8.c:51:
drivers/char/riscom8.h:88: field `tqueue' has incomplete type
drivers/char/riscom8.h:89: field `tqueue_hangup' has incomplete type
drivers/char/riscom8.c:84: warning: type defaults to `int' in declaration of
`DECLARE_TASK_QUEUE'
drivers/char/riscom8.c:84: warning: parameter names (without types) in function
declaration
drivers/char/riscom8.c: In function `rc_init_CD180':
drivers/char/riscom8.c:247: warning: implicit declaration of function `save_flags'
drivers/char/riscom8.c:247: warning: implicit declaration of function `cli'
drivers/char/riscom8.c:251: warning: implicit declaration of function `sti'
drivers/char/riscom8.c:264: warning: implicit declaration of function
`restore_flags'
drivers/char/riscom8.c: In function `rc_mark_event':
drivers/char/riscom8.c:351: warning: implicit declaration of function `queue_task'
drivers/char/riscom8.c:351: `tq_riscom' undeclared (first use in this function)
drivers/char/riscom8.c:351: (Each undeclared identifier is reported only once
drivers/char/riscom8.c:351: for each function it appears in.)
drivers/char/riscom8.c:352: warning: implicit declaration of function `mark_bh'
drivers/char/riscom8.c:352: `RISCOM8_BH' undeclared (first use in this function)
drivers/char/riscom8.c: In function `rc_receive_exc':
drivers/char/riscom8.c:435: structure has no member named `tqueue'
drivers/char/riscom8.c:435: `tq_timer' undeclared (first use in this function)
drivers/char/riscom8.c: In function `rc_receive':
drivers/char/riscom8.c:466: structure has no member named `tqueue'
drivers/char/riscom8.c:466: `tq_timer' undeclared (first use in this function)
drivers/char/riscom8.c: In function `rc_check_modem':
drivers/char/riscom8.c:556: warning: implicit declaration of function
`schedule_task'
drivers/char/riscom8.c: In function `do_riscom_bh':
drivers/char/riscom8.c:1725: warning: implicit declaration of function
`run_task_queue'
drivers/char/riscom8.c:1725: `tq_riscom' undeclared (first use in this function)
drivers/char/riscom8.c: In function `rc_init_drivers':
drivers/char/riscom8.c:1754: warning: implicit declaration of function `init_bh'
drivers/char/riscom8.c:1754: `RISCOM8_BH' undeclared (first use in this function)
drivers/char/riscom8.c: In function `rc_release_drivers':
drivers/char/riscom8.c:1833: warning: implicit declaration of function `remove_bh'
drivers/char/riscom8.c:1833: `RISCOM8_BH' undeclared (first use in this function)
drivers/char/riscom8.c: At top level:
drivers/char/riscom8.c:84: warning: `DECLARE_TASK_QUEUE' declared `static' but
never defined
make[2]: *** [drivers/char/riscom8.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2


Steps to reproduce:

Character devices  /  SDL RISCom/8 card support
CONFIG_RISCOM8=y