[GIT PULL] security: seccomp changes for v4.21

[James Morris]

>From Kees:

"- Add SECCOMP_RET_USER_NOTIF

- seccomp fixes for sparse warnings and s390 build (Tycho)"



The following changes since commit 1072bd678547f8663cfb81a22fdb50c589e4976e:

  security: fs: make inode explicitly non-modular (2018-12-12 14:58:51 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next-seccomp

for you to fetch changes up to 55b8cbe470d103b44104c64dbf89e5cad525d4e0:

  Merge tag 'seccomp-next-part2' of https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into next-seccomp (2018-12-17 11:36:26 -0800)

----------------------------------------------------------------
James Morris (2):
      Merge tag 'seccomp-next' of https://git.kernel.org/.../kees/linux into next-seccomp
      Merge tag 'seccomp-next-part2' of https://git.kernel.org/.../kees/linux into next-seccomp

Tycho Andersen (6):
      seccomp: hoist struct seccomp_data recalculation higher
      seccomp: switch system call argument type to void *
      seccomp: add a return code to trap to userspace
      samples: add an example of seccomp user trap
      seccomp: fix poor type promotion
      seccomp, s390: fix build for syscall type change

 Documentation/ioctl/ioctl-number.txt           |   1 +
 Documentation/userspace-api/seccomp_filter.rst |  84 +++++
 arch/s390/kernel/compat_wrapper.c              |   2 +-
 include/linux/seccomp.h                        |   9 +-
 include/linux/syscalls.h                       |   2 +-
 include/uapi/linux/seccomp.h                   |  40 ++-
 kernel/seccomp.c                               | 467 ++++++++++++++++++++++++-
 samples/seccomp/.gitignore                     |   1 +
 samples/seccomp/Makefile                       |   7 +-
 samples/seccomp/user-trap.c                    | 375 ++++++++++++++++++++
 tools/testing/selftests/seccomp/seccomp_bpf.c  | 447 ++++++++++++++++++++++-
 11 files changed, 1411 insertions(+), 24 deletions(-)
 create mode 100644 samples/seccomp/user-trap.c