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* [LTP] [Patch v2 0/4] tst_kconfig: automatic module load/unload for CONFIG_*=m
@ 2026-10-08  5:21 Li Wang
  2026-10-08  5:21 ` [LTP] [Patch v2 1/4] lib: add module is loaded check Li Wang
                   ` (3 more replies)
  0 siblings, 4 replies; 7+ messages in thread
From: Li Wang @ 2026-10-08  5:21 UTC (permalink / raw)
  To: ltp

Tests that depend on a config set to =m currently load the module
themselves, and may fail with misleading errors when it is missing,
e.g. bind() returning EADDRNOTAVAIL for AF_VSOCK without vsock_loopback.

This series makes tst_kconfig record the module for every
config_module_maps[] entry seen as =m, load them once the kernel
config check passes, and unload them at cleanup time.

Changes in v2:

- Add tst_module_is_loaded() helper.
- Only load/unload modules that are not already loaded.
- Skip automatic loading when KCONFIG_SKIP_CHECK=1, keeping the
  semantics consistent with skipping the config check.
- Document the KCONFIG_SKIP_CHECK=1 behaviour for keyctl29/keyctl30
  and the vsock/vsock_loopback mapping.

Li Wang (4):
  lib: add module is loaded check
  tst_kconfig: load and unload kernel modules for CONFIG_*=m
  tst_kconfig: add module mappings for vsock/vsock_loopback
  testcases: drop manual tst_modprobe() now handled by tst_kconfig

 include/tst_kconfig.h                       | 28 +++++++
 include/tst_module.h                        |  1 +
 lib/tst_kconfig.c                           | 81 +++++++++++++++++++++
 lib/tst_module.c                            | 39 ++++++++++
 lib/tst_test.c                              | 11 ++-
 testcases/cve/cve-2025-21756.c              |  6 ++
 testcases/cve/cve-2026-46331.c              |  7 --
 testcases/cve/sctphantom.c                  |  3 -
 testcases/kernel/syscalls/keyctl/keyctl29.c |  3 -
 testcases/kernel/syscalls/keyctl/keyctl30.c |  3 -
 10 files changed, 164 insertions(+), 18 deletions(-)

-- 
2.56.0


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^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2026-10-10  1:43 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-10-08  5:21 [LTP] [Patch v2 0/4] tst_kconfig: automatic module load/unload for CONFIG_*=m Li Wang
2026-10-08  5:21 ` [LTP] [Patch v2 1/4] lib: add module is loaded check Li Wang
2026-10-08 10:14   ` [LTP] " linuxtestproject.agent
2026-10-10  1:43     ` Li Wang
2026-10-08  5:21 ` [LTP] [Patch v2 2/4] tst_kconfig: load and unload kernel modules for CONFIG_*=m Li Wang
2026-10-08  5:21 ` [LTP] [Patch v2 3/4] tst_kconfig: add module mappings for vsock/vsock_loopback Li Wang
2026-10-08  5:21 ` [LTP] [Patch v2 4/4] testcases: drop manual tst_modprobe() now handled by tst_kconfig Li Wang

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