[PATCH v2 0/2] KVM: selftests: Fix incremental build dependencies

[Fuad Tabba <fuad.tabba@linux.dev>]

Hi folks,

Changes since v1 [1]:
  - Use FORCE for the sysreg header rule instead of duplicating the
    generator's inputs. (Oliver)
  - Added patch 2, the same class of bug in libcgroup.mk, found while
    testing patch 1.

Two fixes for Makefile rules that name a directory where a file's mtime
is what matters. The first is arm64-only: the sysreg header isn't
regenerated on an incremental build when the sysreg table changes. The
second is arch-independent: cgroup_util.o recompiles, and every test
relinks, on the run after any rebuild in lib/. The two patches are
independent.

I'd suggested v1 go through kvmarm as it was arm64-only. With patch 2
being generic, this one is addressed to kvm with kvmarm on Cc. Since the
patches are independent, they can also go through separate trees if
that's easier.

Based on Linux 7.3-rc1 (cee9395acd804).

Cheers,
/fuad

[1] https://lore.kernel.org/all/20260902134118.2718200-1-fuad.tabba@linux.dev/

Fuad Tabba (2):
  KVM: selftests: Fix arm64 sysreg header dependencies
  selftests/cgroup: Make the object directory an order-only prerequisite

 tools/testing/selftests/cgroup/lib/libcgroup.mk |  2 +-
 tools/testing/selftests/kvm/Makefile.kvm        | 16 +++++++++++-----
 2 files changed, 12 insertions(+), 6 deletions(-)


base-commit: cee9395acd8043be0644b25c34bfa86623f2b935
-- 
2.39.5