"esp.o" build error in 2.5.70

[Robert P. J. Day]

  again, the tail end of "make allyesconfig" for 2.5.70 on RH 9:

  CC      drivers/char/esp.o
drivers/char/esp.c:110: warning: type defaults to `int' in declaration of `DECLARE_TASK_QUEUE'
drivers/char/esp.c:110: warning: parameter names (without types) in function declaration
drivers/char/esp.c: In function `rs_stop':
drivers/char/esp.c:225: warning: implicit declaration of function `save_flags'
drivers/char/esp.c:225: warning: implicit declaration of function `cli'
drivers/char/esp.c:232: warning: implicit declaration of function `restore_flags'
drivers/char/esp.c:220: warning: `flags' might be used uninitialized in this function
drivers/char/esp.c: In function `rs_start':
drivers/char/esp.c:238: warning: `flags' might be used uninitialized in this function
drivers/char/esp.c: In function `rs_sched_event':
drivers/char/esp.c:281: warning: implicit declaration of function `queue_task'
drivers/char/esp.c:281: `tq_esp' undeclared (first use in this function)
drivers/char/esp.c:281: (Each undeclared identifier is reported only once
drivers/char/esp.c:281: for each function it appears in.)
drivers/char/esp.c:282: warning: implicit declaration of function `mark_bh'
drivers/char/esp.c:282: `ESP_BH' undeclared (first use in this function)
drivers/char/esp.c: In function `receive_chars_pio':
drivers/char/esp.c:324: warning: implicit declaration of function `sti'
drivers/char/esp.c:377: structure has no member named `tqueue'
drivers/char/esp.c:377: `tq_timer' undeclared (first use in this function)
drivers/char/esp.c: In function `receive_chars_dma_done':
drivers/char/esp.c:452: structure has no member named `tqueue'
drivers/char/esp.c:452: `tq_timer' undeclared (first use in this function)
drivers/char/esp.c: In function `check_modem_status':
drivers/char/esp.c:646: warning: implicit declaration of function `schedule_task'
drivers/char/esp.c: In function `do_serial_bh':
drivers/char/esp.c:775: warning: implicit declaration of function `run_task_queue'
drivers/char/esp.c:775: `tq_esp' undeclared (first use in this function)
drivers/char/esp.c: In function `autoconfig':
drivers/char/esp.c:2453: warning: `__check_region' is deprecated (declared at include/linux/ioport.h:113)
drivers/char/esp.c: In function `espserial_init':
drivers/char/esp.c:2511: warning: implicit declaration of function `init_bh'
drivers/char/esp.c:2511: `ESP_BH' undeclared (first use in this function)
drivers/char/esp.c:2642: structure has no member named `routine'
drivers/char/esp.c:2644: structure has no member named `routine'
drivers/char/esp.c: In function `espserial_exit':
drivers/char/esp.c:2716: warning: implicit declaration of function `remove_bh'
drivers/char/esp.c:2716: `ESP_BH' undeclared (first use in this function)
drivers/char/esp.c: At top level:
drivers/char/esp.c:110: warning: `DECLARE_TASK_QUEUE' declared `static' but never defined
make[2]: *** [drivers/char/esp.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2

rday