This series adds comprehensive testing infrastructure for Netlink
and Generic Netlink

The implementation includes both kernel module and userspace tests to
verify correct Generic Netlink and Netlink behaviors under
various conditions.

Yana Bashlykova (15):
  genetlink: add sysfs test module for Generic Netlink
  genetlink: add TEST_GENL family for netlink testing
  genetlink: add PARALLEL_GENL test family
  genetlink: add test case for duplicate genl family registration
  genetlink: add test case for family with invalid ops
  genetlink: add netlink notifier support
  genetlink: add THIRD_GENL family
  genetlink: verify unregister fails for non-registered family
  genetlink: add LARGE_GENL stress test family
  selftests: net: genetlink: add packet capture test infrastructure
  selftests: net: genetlink: add /proc/net/netlink test
  selftests: net: genetlink: add Generic Netlink controller tests
  selftests: net: genetlink: add large family ID resolution test
  selftests: net: genetlink: add Netlink and Generic Netlink test suite
  selftests: net: genetlink: fix expectation for large family resolution

 drivers/net/Kconfig                           |    2 +
 drivers/net/Makefile                          |    2 +
 drivers/net/genetlink/Kconfig                 |    8 +
 drivers/net/genetlink/Makefile                |    3 +
 .../net-pf-16-proto-16-family-PARALLEL_GENL.c | 1921 ++++++
 tools/testing/selftests/net/Makefile          |    6 +
 tools/testing/selftests/net/genetlink.c       | 5152 +++++++++++++++++
 7 files changed, 7094 insertions(+)
 create mode 100644 drivers/net/genetlink/Kconfig
 create mode 100644 drivers/net/genetlink/Makefile
 create mode 100644 drivers/net/genetlink/net-pf-16-proto-16-family-PARALLEL_GENL.c
 create mode 100644 tools/testing/selftests/net/genetlink.c

-- 
2.34.1

On Fri, 12 Sep 2025 22:53:23 +0300 Yana Bashlykova wrote:
> This series adds comprehensive testing infrastructure for Netlink
> and Generic Netlink
> 
> The implementation includes both kernel module and userspace tests to
> verify correct Generic Netlink and Netlink behaviors under
> various conditions.

What is the motivation for this work?