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[Bug 1826846] Re: Unable to build lttng module with 5.0 kernels

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** Changed in: ubuntu-kernel-tests
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1826846

Title:
  Unable to build lttng module with 5.0 kernels

Status in ubuntu-kernel-tests:
  Fix Released
Status in lttng-modules package in Ubuntu:
  Invalid
Status in lttng-modules source package in Bionic:
  Fix Released
Status in lttng-modules source package in Disco:
  Fix Released
Status in lttng-modules source package in Eoan:
  Invalid

Bug description:
  For SRU:

  [Impact]

   * The DKMS package fails to install on 5.0 kernels.

  [Test Case]

   * Install the 'lttng-modules-dkms' package. "sudo apt install lttng-
  modules-dkms"

   * Expected result: installation succeeds without any errors

   * Actual result: installation fails due to compilation errors

  [Testing]

  I performed this test in an amd64 environment for both a 4.15 and 5.0
  kernel.

  - Create a Bionic 18.04 VM
  - Enable the "-proposed" repository and install the 'linux-generic-hwe-18.04-edge' package - OR - download and install the required .debs from here: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+packages?field.name_filter=linux-hwe-edge&field.status_filter=published&field.series_filter=bionic
  - Try to install the package and confirm it fails: "sudo apt install lttng-modules-dkms"
  - Remove the failed installation: "sudo apt remove lttng-modules-dkms"
  - Pull the sources for this package: "pull-lp-source lttng-modules bionic"
  - Apply the proposed debdiff with "debdiff-apply < path-to-file.debdiff"
  - Build the package: "debuild -b -uc -us"
  - Install the package produced in the previous step: "sudo dpkg --install path-to-package.deb"
  - Verify installation completed successfully. You can also check the module status with "sudo dkms status"

  [Regression Potential]

   * Low. The changes imposed by these patches are conditionally
  compiled based on the kernel number.

  
  Original bug description follows:
  ---

  The lttng DKMS module failed to build on Bionic 5.0.0 kernel:

  'cat /var/lib/dkms/lttng-modules/*/build/make.log'
   DKMS make.log for lttng-modules-2.10.5 for kernel 5.0.0-13-generic (x86_64)
   Thu Apr 25 14:10:29 UTC 2019
   make: Entering directory '/usr/src/linux-headers-5.0.0-13-generic'
   CC [M] /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.o
   /var/lib/dkms/lttng-modules/2.10.5/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.
   CC [M] /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.o
   CC [M] /var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.o
   /var/lib/dkms/lttng-modules/2.10.5/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/2.10.5/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/2.10.5/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/2.10.5/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/2.10.5/build/probes/lttng-probe-sched.o
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/lib/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.c:34:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h:305:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.c:22:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h:305:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h:305:16: note: each undeclared identifier is reported only once for each function it appears in
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/lib/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.c:34:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_strcpy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h:375:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.c:22:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h:375:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/lib/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.c:34:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_check_nofault’:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h:465:38: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (!access_ok(VERIFY_READ, src, len))
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/../lib/ringbuffer/backend.h:465:7: error: ‘access_ok’ undeclared (first use in this function)
   if (!access_ok(VERIFY_READ, src, len))
   ^~~~~~~~~
   scripts/Makefile.build:284: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.o' failed
   make[2]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/ring_buffer_backend.o] Error 1
   scripts/Makefile.build:515: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/lib' failed
   make[1]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/lib] Error 2
   make[1]: *** Waiting for unfinished jobs....
   CC [M] /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.o
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/api.h:26,
   from /var/lib/dkms/lttng-modules/2.10.5/build/wrapper/ringbuffer/api.h:1,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client.h:180,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.c:29:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h:305:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h:305:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h:305:16: note: each undeclared identifier is reported only once for each function it appears in
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/api.h:26,
   from /var/lib/dkms/lttng-modules/2.10.5/build/wrapper/ringbuffer/api.h:1,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client.h:180,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.c:29:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_strcpy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h:375:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h:375:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/api.h:26,
   from /var/lib/dkms/lttng-modules/2.10.5/build/wrapper/ringbuffer/api.h:1,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client.h:180,
   from /var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.c:29:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_check_nofault’:
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h:465:38: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (!access_ok(VERIFY_READ, src, len))
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/lib/ringbuffer/backend.h:465:7: error: ‘access_ok’ undeclared (first use in this function)
   if (!access_ok(VERIFY_READ, src, len))
   ^~~~~~~~~
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../instrumentation/events/lttng-module/lttng-test.h:54,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.c:39:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h:305:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/init.h:5:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h:305:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h:305:16: note: each undeclared identifier is reported only once for each function it appears in
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../instrumentation/events/lttng-module/lttng-test.h:54,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.c:39:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_strcpy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h:375:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/init.h:5:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h:375:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/../instrumentation/events/lttng-module/lttng-test.h:54,
   from /var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.c:39:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_check_nofault’:
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h:465:38: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (!access_ok(VERIFY_READ, src, len))
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/tests/../lib/ringbuffer/backend.h:465:7: error: ‘access_ok’ undeclared (first use in this function)
   if (!access_ok(VERIFY_READ, src, len))
   ^~~~~~~~~
   scripts/Makefile.build:291: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.o' failed
   make[1]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/lttng-ring-buffer-client-discard.o] Error 1
   CC [M] /var/lib/dkms/lttng-modules/2.10.5/build/tests/clock-plugin/lttng-clock-plugin-test.o
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/sched.h:599,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-sched.c:41:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-sched.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:16: note: each undeclared identifier is reported only once for each function it appears in
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/sched.h:599,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-sched.c:41:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_strcpy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:375:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-sched.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:375:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/sched.h:599,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-sched.c:41:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_check_nofault’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:465:38: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (!access_ok(VERIFY_READ, src, len))
   ^
   scripts/Makefile.build:284: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.o' failed
   make[2]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/tests/probes/lttng-test.o] Error 1
   make[2]: *** Waiting for unfinished jobs....
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:465:7: error: ‘access_ok’ undeclared (first use in this function)
   if (!access_ok(VERIFY_READ, src, len))
   ^~~~~~~~~
   CC [M] /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.o
   scripts/Makefile.build:291: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-sched.o' failed
   make[2]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-sched.o] Error 1
   make[2]: *** Waiting for unfinished jobs....
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/irq.h:189,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.c:42:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:16: note: each undeclared identifier is reported only once for each function it appears in
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/irq.h:189,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.c:42:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_strcpy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:375:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:375:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/irq.h:189,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.c:42:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_check_nofault’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:465:38: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (!access_ok(VERIFY_READ, src, len))
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:465:7: error: ‘access_ok’ undeclared (first use in this function)
   if (!access_ok(VERIFY_READ, src, len))
   ^~~~~~~~~
   scripts/Makefile.build:515: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/tests' failed
   make[1]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/tests] Error 2
   scripts/Makefile.build:291: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.o' failed
   make[2]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-irq.o] Error 1
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/timer.h:354,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.c:43:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:305:16: note: each undeclared identifier is reported only once for each function it appears in
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/timer.h:354,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.c:43:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_strcpy_from_user_inatomic’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:375:48: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   In file included from ./include/linux/export.h:45:0,
   from ./include/linux/linkage.h:7,
   from ./include/linux/kernel.h:7,
   from ./include/linux/list.h:9,
   from ./include/linux/module.h:9,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.c:23:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:375:16: error: ‘access_ok’ undeclared (first use in this function)
   if (unlikely(!access_ok(VERIFY_READ, src, len)))
   ^
   ./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
   # define unlikely(x) __builtin_expect(!!(x), 0)
   ^
   In file included from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../wrapper/ringbuffer/backend.h:1:0,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/lttng-tracepoint-event-impl.h:33,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../probes/define_trace.h:100,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/../instrumentation/events/lttng-module/timer.h:354,
   from /var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.c:43:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_check_nofault’:
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:465:38: error: macro "access_ok" passed 3 arguments, but takes just 2
   if (!access_ok(VERIFY_READ, src, len))
   ^
   /var/lib/dkms/lttng-modules/2.10.5/build/probes/../lib/ringbuffer/backend.h:465:7: error: ‘access_ok’ undeclared (first use in this function)
   if (!access_ok(VERIFY_READ, src, len))
   ^~~~~~~~~
   scripts/Makefile.build:291: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.o' failed
   make[2]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/probes/lttng-probe-timer.o] Error 1
   scripts/Makefile.build:515: recipe for target '/var/lib/dkms/lttng-modules/2.10.5/build/probes' failed
   make[1]: *** [/var/lib/dkms/lttng-modules/2.10.5/build/probes] Error 2
   Makefile:1584: recipe for target '_module_/var/lib/dkms/lttng-modules/2.10.5/build' failed
   make: *** [_module_/var/lib/dkms/lttng-modules/2.10.5/build] Error 2
   make: Leaving directory '/usr/src/linux-headers-5.0.0-13-generic'

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