Issue found on Bionic AWS 4.15.0-1117.124

Module build failed with:
 make: Entering directory '/usr/src/linux-headers-4.15.0-1117-aws'
 find: ‘/var/lib/dkms/lttng-modules/2.10.8/build/extra_version/patches/’: No such file or directory
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-ring-buffer-client-discard.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-ring-buffer-client-overwrite.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-ring-buffer-metadata-client.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-ring-buffer-client-mmap-discard.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-ring-buffer-client-mmap-overwrite.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-ring-buffer-metadata-mmap-client.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-clock.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-events.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-abi.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-string-utils.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-probes.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-pid.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-procname.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-prio.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-nice.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-vpid.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-tid.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-vtid.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-ppid.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-vppid.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-cpu-id.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-interruptible.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-need-reschedule.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-calibrate.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-hostname.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/random.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/trace-clock.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/page_alloc.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-tracker-pid.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-filter.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-filter-interpreter.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-filter-specialize.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-filter-validator.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-user.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-tp-mempool.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-syscalls.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-context-perf-counters.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-tracepoint.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-statedump-impl.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/irqdesc.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/fdtable.o
 find: ‘/var/lib/dkms/lttng-modules/2.10.8/build/lib/../extra_version/patches/’: No such file or directory
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/ringbuffer/ring_buffer_backend.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/ringbuffer/ring_buffer_frontend.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/ringbuffer/ring_buffer_iterator.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/ringbuffer/ring_buffer_vfs.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/ringbuffer/ring_buffer_splice.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/ringbuffer/ring_buffer_mmap.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/prio_heap/lttng_prio_heap.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/../wrapper/splice.o
   LD [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lib/lttng-lib-ring-buffer.o
 find: ‘/var/lib/dkms/lttng-modules/2.10.8/build/probes/../extra_version/patches/’: No such file or directory
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/Kbuild:41: File ./arch/x86/kvm/lapic.h not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/Kbuild:166: Files ./fs/btrfs/*.h not found. Probe "btrfs" is disabled. Use full kernel source tree to enable it.
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/Kbuild:182: Files ./fs/ext4/*.h not found. Probe "ext4" is disabled. Use full kernel source tree to enable it.
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/Kbuild:215: File ./drivers/base/regmap/trace.h not found. Probe "regmap" is disabled. Need Linux 4.1+ kernel source tree to enable it.
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/Kbuild:265: Files ./kernel/trace/trace.h not found. Probe "ftrace" is disabled. Use full kernel source tree to enable it.
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-sched.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-irq.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-timer.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-kmem.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-module.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-power.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-statedump.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-i2c.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-kvm.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-x86-irq-vectors.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-x86-exceptions.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-signal.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-block.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-napi.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-skb.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-net.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-sock.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-udp.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-jbd2.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-regulator.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-scsi.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-vmscan.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-compaction.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-printk.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-random.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-rcu.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-sunrpc.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-workqueue.o
   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-writeback.o
 In file included from /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-writeback.c:51:0:
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/../instrumentation/events/lttng-module/writeback.h:49:0: warning: "show_inode_state" redefined
  #define show_inode_state(state)     \
  
 In file included from /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-writeback.c:33:0:
 ./include/trace/events/writeback.h:12:0: note: this is the location of the previous definition
  #define show_inode_state(state)     \
  
 In file included from /var/lib/dkms/lttng-modules/2.10.8/build/probes/../probes/define_trace.h:100:0,
                  from /var/lib/dkms/lttng-modules/2.10.8/build/probes/../instrumentation/events/lttng-module/writeback.h:746,
                  from /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-writeback.c:51:
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/../probes/lttng-tracepoint-event-impl.h:143:6: error: conflicting types for ‘trace_writeback_queue_io’
  void trace_##_name(_proto);
       ^
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/../probes/lttng-tracepoint-event-impl.h:55:2: note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP’
   LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(map, name, map, PARAMS(proto), PARAMS(args))
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/../probes/lttng-tracepoint-event-impl.h:97:2: note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT_MAP’
   LTTNG_TRACEPOINT_EVENT_MAP(name, name,    \
   ^~~~~~~~~~~~~~~~~~~~~~~~~~
 /var/lib/dkms/lttng-modules/2.10.8/build/probes/../instrumentation/events/lttng-module/writeback.h:375:1: note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT’
  LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
  ^~~~~~~~~~~~~~~~~~~~~~
 In file included from ./include/trace/events/writeback.h:8:0,
                  from /var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-writeback.c:33:
 ./include/linux/tracepoint.h:187:21: note: previous definition of ‘trace_writeback_queue_io’ was here
   static inline void trace_##name(proto)    \
                      ^
 ./include/linux/tracepoint.h:352:2: note: in expansion of macro ‘__DECLARE_TRACE’
   __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args),  \
   ^~~~~~~~~~~~~~~
 ./include/linux/tracepoint.h:488:2: note: in expansion of macro ‘DECLARE_TRACE’
   DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
   ^~~~~~~~~~~~~
 ./include/trace/events/writeback.h:358:1: note: in expansion of macro ‘TRACE_EVENT’
  TRACE_EVENT(writeback_queue_io,
  ^~~~~~~~~~~
 scripts/Makefile.build:340: recipe for target '/var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-writeback.o' failed
 make[2]: *** [/var/lib/dkms/lttng-modules/2.10.8/build/probes/lttng-probe-writeback.o] Error 1
 scripts/Makefile.build:607: recipe for target '/var/lib/dkms/lttng-modules/2.10.8/build/probes' failed
 make[1]: *** [/var/lib/dkms/lttng-modules/2.10.8/build/probes] Error 2
 make[1]: *** Waiting for unfinished jobs....
 Makefile:1590: recipe for target '_module_/var/lib/dkms/lttng-modules/2.10.8/build' failed
 make: *** [_module_/var/lib/dkms/lttng-modules/2.10.8/build] Error 2
 make: Leaving directory '/usr/src/linux-headers-4.15.0-1117-aws'

However this module lttng-dkms-module 2.10.8-1ubuntu2~18.04.3 can be built on the proposed bionic 4.15.0-165 kernel.