A few improvements/fixes for the mm kselftests:

- Patch 1-2 extend support for more build configurations: out-of-tree
  $KDIR, cross-compilation, etc.

- Patch 3-4 fix issues in the pagemap_ioctl tests, most importantly that
  it does not report failures: ./run_kselftests.sh would report OK
  even if some pagemap_ioctl tests fail. That's probably why the issue
  in patch 3 went unnoticed.

---
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
---
Kevin Brodsky (4):
  selftests/mm: remove flaky header check
  selftests/mm: pass down full CC and CFLAGS to check_config.sh
  selftests/mm: fix faulting-in code in pagemap_ioctl test
  selftests/mm: fix exit code in pagemap_ioctl

 tools/testing/selftests/mm/Makefile        |  6 +-----
 tools/testing/selftests/mm/check_config.sh |  3 +--
 tools/testing/selftests/mm/pagemap_ioctl.c | 12 ++++++------
 3 files changed, 8 insertions(+), 13 deletions(-)


base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
-- 
2.51.2