[asterisk-dev] dahdi 2.11.1 build fails with kernel 4.11.3

[sean darcy]

Building dahdi-2.11.1 using gcc-6.3.1 for kernel-4.11.3:

..............
make[1]: Entering directory '/usr/src/kernels/4.11.3-200.fc25.x86_64'
   CC [M] 
/home/asterisk/rpmbuild/BUILD/dahdi-linux-2.11.1/drivers/dahdi/dahdi-base.o
/home/asterisk/rpmbuild/BUILD/dahdi-linux-2.11.1/drivers/dahdi/dahdi-base.c: 
In function 'dahdi_ioctl_iomux':
/home/asterisk/rpmbuild/BUILD/dahdi-linux-2.11.1/drivers/dahdi/dahdi-base.c:5954:7: 
error: implicit declaration of function 'signal_pending' 
[-Werror=implicit-function-declaration]
    if (signal_pending(current))

For whatever reason signal_pending has been moved in 4.13. dahdi-base.o 
needs:

#include <linux/sched/signal.h>

But then:

................
   CC [M] 
/home/asterisk/rpmbuild/BUILD/dahdi-linux-2.11.1/drivers/dahdi/dahdi_dynamic.o
/home/asterisk/rpmbuild/BUILD/dahdi-linux-2.11.1/drivers/dahdi/dahdi_dynamic.c: 
In function '_destroy_dynamic':
/home/asterisk/rpmbuild/BUILD/dahdi-linux-2.11.1/drivers/dahdi/dahdi_dynamic.c:470:18: 
error: passing argument 1 of 'atomic_read' from incompatible pointer 
type [-Werror=incompatible-pointer-types]
   if (atomic_read(&d->kref.refcount) > 2) {
                   ^
In file included from ./arch/x86/include/asm/msr.h:66:0,
                  from ./arch/x86/include/asm/processor.h:20,
                  from ./arch/x86/include/asm/cpufeature.h:4,
                  from ./arch/x86/include/asm/thread_info.h:52,
                  from ./include/linux/thread_info.h:25,
                  from ./arch/x86/include/asm/preempt.h:6,
                  from ./include/linux/preempt.h:80,
                  from ./include/linux/spinlock.h:50,
                  from ./include/linux/seqlock.h:35,
                  from ./include/linux/time.h:5,
                  from ./include/linux/stat.h:18,
                  from ./include/linux/module.h:10,
                  from 
/home/asterisk/rpmbuild/BUILD/dahdi-linux-2.11.1/drivers/dahdi/dahdi_dynamic.c:27:
./arch/x86/include/asm/atomic.h:24:28: note: expected 'const atomic_t * 
{aka const struct <anonymous> *}' but argument is of type 'refcount_t * 
{aka struct refcount_struct *}'
  static __always_inline int atomic_read(const atomic_t *v)

About which I have no clue.

sean