[LAU] can't compile realtime kernel: error: conflicting types for ‘irqreturn_t’

[Dietrich Bollmann]

Hi,

Since some time I can't build the vanilla kernel when patching it with
Ingo Molnar's realtime patch.

Any idea what is going wrong?

Thanks, Dietrich

Kernel:   http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.29.2.tar.bz2
RT patch:
http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.29.2-rt11.bz2

The compile error:

  [...]
  LD [M]  drivers/ssb/ssb.o
  CC [M]  drivers/staging/at76_usb/at76_usb.o
  CC [M]  drivers/staging/comedi/comedi_fops.o
In file included from drivers/staging/comedi/comedidev.h:40,
                 from drivers/staging/comedi/comedi_fops.c:45:
drivers/staging/comedi/interrupt.h:27: error: conflicting types for
‘irqreturn_t’
include/linux/irqreturn.h:14: error: previous declaration of
‘irqreturn_t’ was here
In file included from drivers/staging/comedi/comedidev.h:40,
                 from drivers/staging/comedi/comedi_fops.c:45:
drivers/staging/comedi/interrupt.h:30:1: warning: "IRQ_RETVAL" redefined
In file included from include/linux/interrupt.h:10,
                 from drivers/staging/comedi/interrupt.h:22,
                 from drivers/staging/comedi/comedidev.h:40,
                 from drivers/staging/comedi/comedi_fops.c:45:
include/linux/irqreturn.h:15:1: warning: this is the location of the
previous definition
make[4]: *** [drivers/staging/comedi/comedi_fops.o] Error 1
make[3]: *** [drivers/staging/comedi] Error 2
make[2]: *** [drivers/staging] Error 2
make[1]: *** [drivers] Error 2
make[1]: Leaving directory
`/home/dietrich/linux/debian/kernel/vanilla/2.6.29.2-rt11/linux-2.6.29.2'
make: *** [debian/stamp/build/kernel] Error 2